Hello. If image width and height values smaller than w and h values than image will stretch to w and h values. It's bug, or it's a normal behavior? And how we can prevent this?

I've gotten phpThumb to the point where it gives me the error box, so I assume my paths are correct. When I enable debugging and look at the error message, I get the following, but I have no idea what it is trying to tell me. Thanks for any help you can provide. Is there anyplace I can go to help me decode the error listing in the future?

phpThumb() v1.7.13-201406261000
http://phpthumb.sourceforge.net

phpThumb() version          = 1.7.13-201406261000
phpversion()                = 5.6.23
PHP_OS                      = Linux
$_SERVER[SERVER_SOFTWARE]   = Apache
__FILE__                    = /homepages/44/d615211338/htdocs/newtonart/membership/resize/phpthumb.class.php
realpath(.)                 = /homepages/44/d615211338/htdocs/newtonart/membership/resize
$_SERVER[PHP_SELF]          = /newtonart/membership/resize/phpThumb.php
$_SERVER[HOST_NAME]         = 
$_SERVER[HTTP_REFERER]      = 
$_SERVER[QUERY_STRING]      = src=resize/images/B-52.jpg&w=150&hash=7cefac68245d02618600b9bc5f4db971
$_SERVER[PATH_INFO]         = 
$_SERVER[DOCUMENT_ROOT]     = /kunden/homepages/44/d615211338/htdocs
getenv(DOCUMENT_ROOT)       = /kunden/homepages/44/d615211338/htdocs

get_magic_quotes_gpc()         = FALSE
get_magic_quotes_runtime()     = FALSE
error_reporting()              = integer     32767
ini_get(error_reporting)       = string(1)   "0"
ini_get(display_errors)        = string(1)   "1"
ini_get(allow_url_fopen)       = string(1)   "1"
ini_get(disable_functions)     = string(0)   ""
get_cfg_var(disable_functions) = FALSE
ini_get(safe_mode)             = FALSE
ini_get(open_basedir)          = string(0)   ""
ini_get(max_execution_time)    = string(2)   "60"
ini_get(memory_limit)          = string(4)   "256M"
get_cfg_var(memory_limit)      = string(4)   "256M"
memory_get_usage()             = integer     1083452

$this->config_prefer_imagemagick            = TRUE
$this->config_imagemagick_path              = NULL
$this->ImageMagickWhichConvert()            = /usr/bin/convert
[actual ImageMagick path used]              = string(16)  "/usr/bin/convert"
file_exists([actual ImageMagick path used]) = TRUE
ImageMagickVersion(false)                   = 6.6.0-4 2015-11-27 Q16 
ImageMagickVersion(true)                    = Version: ImageMagick 6.6.0-4 2015-11-27 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2010 ImageMagick Studio LLC
Features: OpenMP

$this->config_cache_directory               = string(66)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache/"
$this->config_cache_directory_depth         = integer     2
$this->config_cache_disable_warning         = FALSE
$this->config_cache_maxage                  = NULL
$this->config_cache_maxsize                 = NULL
$this->config_cache_maxfiles                = NULL
$this->config_cache_force_passthru          = TRUE
$this->cache_filename                       = string(188) "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache//2/27/phpThumb_cache_cyberartisans.info__src278667ec27be9d2b504f25c2d39d6408_par0b9e73569dbbfe81d5e1ff2a11d92887_dat0.jpeg"
is_readable($this->config_cache_directory)  = TRUE
is_writable($this->config_cache_directory)  = TRUE
is_readable($this->cache_filename)          = FALSE
is_writable($this->cache_filename)          = n/a

$this->config_document_root                  = string(31)  "/homepages/44/d615211338/htdocs"
$this->config_temp_directory                 = string(65)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache"
$this->config_output_format                  = string(4)   "jpeg"
$this->config_output_maxwidth                = integer     0
$this->config_output_maxheight               = integer     0
$this->config_error_message_image_default    = string(0)   ""
$this->config_error_bgcolor                  = string(6)   "CCCCFF"
$this->config_error_textcolor                = string(6)   "FF0000"
$this->config_error_fontsize                 = integer     1
$this->config_error_die_on_error             = TRUE
$this->config_error_silent_die_on_error      = FALSE
$this->config_error_die_on_source_failure    = TRUE
$this->config_nohotlink_enabled              = TRUE
$this->config_nohotlink_valid_domains        = array(1) {   [0]=>   string(18) "cyberartisans.info" } 
$this->config_nohotlink_erase_image          = TRUE
$this->config_nohotlink_text_message         = string(38)  "Off-server thumbnailing is not allowed"
$this->config_nooffsitelink_enabled          = TRUE
$this->config_nooffsitelink_valid_domains    = array(1) {   [0]=>   string(18) "cyberartisans.info" } 
$this->config_nooffsitelink_require_refer    = FALSE
$this->config_nooffsitelink_erase_image      = FALSE
$this->config_nooffsitelink_text_message     = string(35)  "Image taken from cyberartisans.info"
$this->config_high_security_enabled          = TRUE
$this->config_allow_src_above_docroot        = FALSE
$this->config_allow_src_above_phpthumb       = TRUE
$this->config_max_source_pixels              = float       44739243
$this->config_use_exif_thumbnail_for_speed   = FALSE
$this->config_border_hexcolor                = string(6)   "000000"
$this->config_background_hexcolor            = string(6)   "FFFFFF"
$this->config_ttf_directory                  = string(65)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/fonts"
$this->config_disable_pathinfo_parsing       = TRUE
$this->config_disable_imagecopyresampled     = FALSE

$this->phpThumbDebug               = integer     9
$this->thumbnailQuality            = integer     75
$this->thumbnailFormat             = string(4)   "jpeg"
$this->gdimg_output                = NULL
$this->gdimg_source                = FALSE
$this->sourceFilename              = string(82)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg"
$this->source_width                = NULL
$this->source_height               = NULL
$this->thumbnailCropX              = NULL
$this->thumbnailCropY              = NULL
$this->thumbnailCropW              = NULL
$this->thumbnailCropH              = NULL
$this->exif_thumbnail_width        = NULL
$this->exif_thumbnail_height       = NULL
$this->exif_thumbnail_type         = NULL
$this->thumbnail_width             = NULL
$this->thumbnail_height            = NULL
$this->thumbnail_image_width       = NULL
$this->thumbnail_image_height      = NULL
strlen($this->rawImageData)        = 0
strlen($this->exif_thumbnail_data) = 0

$this->src  = string(82)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg"
$this->new  = NULL
$this->w    = string(3)   "150"
$this->h    = FALSE
$this->f    = string(0)   ""
$this->q    = integer     75
$this->sx   = NULL
$this->sy   = NULL
$this->sw   = NULL
$this->sh   = NULL
$this->far  = NULL
$this->bg   = NULL
$this->bc   = NULL
$this->file = NULL
$this->goto = NULL
$this->err  = NULL
$this->xto  = NULL
$this->ra   = NULL
$this->ar   = NULL
$this->aoe  = NULL
$this->iar  = NULL
$this->maxb = NULL

builtin_function_exists(exif_thumbnail)          = TRUE
builtin_function_exists(gd_info)                 = TRUE
builtin_function_exists(image_type_to_mime_type) = TRUE
builtin_function_exists(GetImageSize)            = TRUE
builtin_function_exists(ImageCopyResampled)      = TRUE
builtin_function_exists(ImageCopyResized)        = TRUE
builtin_function_exists(ImageCreate)             = TRUE
builtin_function_exists(ImageCreateFromString)   = TRUE
builtin_function_exists(ImageCreateTrueColor)    = TRUE
builtin_function_exists(ImageIsTrueColor)        = TRUE
builtin_function_exists(ImageRotate)             = TRUE
builtin_function_exists(ImageTypes)              = TRUE
builtin_function_exists(version_compare)         = TRUE
builtin_function_exists(ImageCreateFromGIF)      = TRUE
builtin_function_exists(ImageCreateFromJPEG)     = TRUE
builtin_function_exists(ImageCreateFromPNG)      = TRUE
builtin_function_exists(ImageCreateFromWBMP)     = TRUE
builtin_function_exists(ImageCreateFromXBM)      = TRUE
builtin_function_exists(ImageCreateFromXPM)      = FALSE
builtin_function_exists(ImageCreateFromString)   = TRUE
builtin_function_exists(ImageCreateFromGD)       = TRUE
builtin_function_exists(ImageCreateFromGD2)      = TRUE
builtin_function_exists(ImageCreateFromGD2Part)  = TRUE
builtin_function_exists(ImageJPEG)               = TRUE
builtin_function_exists(ImageGIF)                = TRUE
builtin_function_exists(ImagePNG)                = TRUE
builtin_function_exists(ImageWBMP)               = TRUE

gd_info.GD Version                         = string(26)  "bundled (2.1.0 compatible)"
gd_info.FreeType Support                   = TRUE
gd_info.FreeType Linkage                   = string(13)  "with freetype"
gd_info.T1Lib Support                      = FALSE
gd_info.GIF Read Support                   = TRUE
gd_info.GIF Create Support                 = TRUE
gd_info.JPEG Support                       = TRUE
gd_info.PNG Support                        = TRUE
gd_info.WBMP Support                       = TRUE
gd_info.XPM Support                        = FALSE
gd_info.XBM Support                        = TRUE
gd_info.WebP Support                       = FALSE
gd_info.JIS-mapped Japanese Font Support   = FALSE

exif_info.EXIF Support               = string(7)   "enabled"
exif_info.EXIF Version               = string(51)  "1.4 $Id: db007ca2e6d0b4513ae77990972997fad8bfe9c9 $"
exif_info.Supported EXIF Version     = string(4)   "0220"
exif_info.Supported filetypes        = string(9)   "JPEG,TIFF"

ApacheLookupURIarray() -- FAILED

$_GET[src]                           = string(22)  "resize/images/B-52.jpg"
$_GET[w]                             = string(3)   "150"
$_GET[hash]                          = string(32)  "7cefac68245d02618600b9bc5f4db971"
$_GET[phpThumbDebug]                 = integer     9

$this->debugmessages:
  * phpThumb() v1.7.13-201406261000 in file "phpthumb.class.php" on line 220
  * setParameter(config_document_root, string(31)  "/homepages/44/d615211338/htdocs") in file "phpThumb.php" on line 152
  * setParameter(config_high_security_enabled, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_high_security_url_separator, string(1)   "&") in file "phpThumb.php" on line 152
  * setParameter(config_disable_debug, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_allow_src_above_docroot, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_allow_src_above_phpthumb, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_auto_allow_symlinks, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_additional_allowed_dirs, array(0) { } ) in file "phpThumb.php" on line 152
  * setParameter(config_cache_directory, string(66)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache/") in file "phpThumb.php" on line 152
  * setParameter(config_cache_disable_warning, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_cache_directory_depth, integer     2) in file "phpThumb.php" on line 152
  * setParameter(config_cache_maxage, NULL) in file "phpThumb.php" on line 152
  * setParameter(config_cache_maxsize, NULL) in file "phpThumb.php" on line 152
  * setParameter(config_cache_maxfiles, NULL) in file "phpThumb.php" on line 152
  * setParameter(config_cache_source_enabled, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_cache_source_directory, string(73)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache/source/") in file "phpThumb.php" on line 152
  * setParameter(config_cache_source_filemtime_ignore_local, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_cache_source_filemtime_ignore_remote, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_cache_default_only_suffix, string(0)   "") in file "phpThumb.php" on line 152
  * setParameter(config_cache_prefix, string(34)  "phpThumb_cache_cyberartisans.info_") in file "phpThumb.php" on line 152
  * setParameter(config_cache_force_passthru, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_temp_directory, string(66)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache/") in file "phpThumb.php" on line 152
  * setParameter(config_prefer_imagemagick, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_imagemagick_use_thumbnail, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_imagemagick_path, NULL) in file "phpThumb.php" on line 152
  * setParameter(config_max_source_pixels, float       44739243) in file "phpThumb.php" on line 152
  * setParameter(config_output_format, string(4)   "jpeg") in file "phpThumb.php" on line 152
  * setParameter(config_output_maxwidth, integer     0) in file "phpThumb.php" on line 152
  * setParameter(config_output_maxheight, integer     0) in file "phpThumb.php" on line 152
  * setParameter(config_output_interlace, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_error_image_width, integer     400) in file "phpThumb.php" on line 152
  * setParameter(config_error_image_height, integer     100) in file "phpThumb.php" on line 152
  * setParameter(config_error_message_image_default, string(0)   "") in file "phpThumb.php" on line 152
  * setParameter(config_error_bgcolor, string(6)   "CCCCFF") in file "phpThumb.php" on line 152
  * setParameter(config_error_textcolor, string(6)   "FF0000") in file "phpThumb.php" on line 152
  * setParameter(config_error_fontsize, integer     1) in file "phpThumb.php" on line 152
  * setParameter(config_error_die_on_error, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_error_silent_die_on_error, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_error_die_on_source_failure, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_nohotlink_enabled, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_nohotlink_valid_domains, array(1) {   [0]=>   string(18) "cyberartisans.info" } ) in file "phpThumb.php" on line 152
  * setParameter(config_nohotlink_erase_image, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_nohotlink_text_message, string(38)  "Off-server thumbnailing is not allowed") in file "phpThumb.php" on line 152
  * setParameter(config_nooffsitelink_enabled, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_nooffsitelink_valid_domains, array(1) {   [0]=>   string(18) "cyberartisans.info" } ) in file "phpThumb.php" on line 152
  * setParameter(config_nooffsitelink_require_refer, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_nooffsitelink_erase_image, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_nooffsitelink_watermark_src, string(26)  "/demo/images/watermark.png") in file "phpThumb.php" on line 152
  * setParameter(config_nooffsitelink_text_message, string(35)  "Image taken from cyberartisans.info") in file "phpThumb.php" on line 152
  * setParameter(config_border_hexcolor, string(6)   "000000") in file "phpThumb.php" on line 152
  * setParameter(config_background_hexcolor, string(6)   "FFFFFF") in file "phpThumb.php" on line 152
  * setParameter(config_ttf_directory, string(65)  "/homepages/44/d615211338/htdocs/newtonart/membership/resize/fonts") in file "phpThumb.php" on line 152
  * setParameter(config_http_user_agent, string(109) "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36") in file "phpThumb.php" on line 152
  * setParameter(config_disable_pathinfo_parsing, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_disable_imagecopyresampled, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_disable_onlycreateable_passthru, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_http_fopen_timeout, integer     10) in file "phpThumb.php" on line 152
  * setParameter(config_http_follow_redirect, TRUE) in file "phpThumb.php" on line 152
  * setParameter(config_allow_local_http_src, FALSE) in file "phpThumb.php" on line 152
  * setParameter(config_use_exif_thumbnail_for_speed, FALSE) in file "phpThumb.php" on line 152
  * setParameter(src, string(22)  "resize/images/B-52.jpg") in file "phpThumb.php" on line 329
  * resolvePath: /homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg (allowed_dirs: Array
(
)
) in file "phpthumb.class.php" on line 1096
  * resolvePath: iteration, path=/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg, base path = /homepages/44/d615211338/htdocs in file "phpthumb.class.php" on line 1115
  * open_basedir: "" in file "phpthumb.class.php" on line 1082
  * resolvePath: stop at component 11 in file "phpthumb.class.php" on line 1131
  * resolvePath: stop at path=/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg in file "phpthumb.class.php" on line 1134
  * resolvePath: path parsed, over in file "phpthumb.class.php" on line 1140
  * setSourceFilename(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) set $this->sourceFilename to "/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg" in file "phpthumb.class.php" on line 271
  * setParameter(w, string(3)   "150") in file "phpThumb.php" on line 329
  * setParameter(hash, string(32)  "7cefac68245d02618600b9bc5f4db971") in file "phpThumb.php" on line 329
  * setParameter(phpThumbDebug, integer     9) in file "phpThumb.php" on line 329
  * $CanPassThroughDirectly=false because !@is_readable(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) in file "phpThumb.php" on line 376
  * $CanPassThroughDirectly=false because $_GET[hash] are set in file "phpThumb.php" on line 410
  * $CanPassThroughDirectly="0" && $phpThumb->src="/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg" in file "phpThumb.php" on line 421
  * Addding ImageMagick formats to $AvailableImageOutputFormats (text;ico;bmp;wbmp;gif;png;jpeg) in file "phpthumb.class.php" on line 919
  * $AvailableImageOutputFormats = array(text;ico;bmp;wbmp;gif;png;jpeg) in file "phpthumb.class.php" on line 925
  * $this->thumbnailFormat set to $this->config_output_format "jpeg" in file "phpthumb.class.php" on line 936
  * $this->thumbnailQuality set to "75" in file "phpthumb.class.php" on line 953
  * SetCacheFilename() _src set from md5($this->sourceFilename) "/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg" = "278667ec27be9d2b504f25c2d39d6408" in file "phpthumb.class.php" on line 3443
  * SetCacheFilename() _par set from md5(_w150_dpi150_q75) in file "phpthumb.class.php" on line 3476
  * Cached file "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache//2/27/phpThumb_cache_cyberartisans.info__src278667ec27be9d2b504f25c2d39d6408_par0b9e73569dbbfe81d5e1ff2a11d92887_dat0.jpeg" does not exist, processing as normal in file "phpThumb.php" on line 511
  * ResolveFilenameToAbsolute() NOT prepending $this->config_document_root (/homepages/44/d615211338/htdocs) to $filename (/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) resulting in ($AbsoluteFilename = "/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg") in file "phpthumb.class.php" on line 1216
  * resolvePath: /homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg (allowed_dirs: Array
(
)
) in file "phpthumb.class.php" on line 1096
  * resolvePath: iteration, path=/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg, base path = /homepages/44/d615211338/htdocs in file "phpthumb.class.php" on line 1115
  * resolvePath: stop at component 11 in file "phpthumb.class.php" on line 1131
  * resolvePath: stop at path=/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg in file "phpthumb.class.php" on line 1134
  * resolvePath: path parsed, over in file "phpthumb.class.php" on line 1140
  * $this->sourceFilename set to "/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg" in file "phpthumb.class.php" on line 849
  * phpThumb() v1.7.13-201406261000
http://phpthumb.sourceforge.net

"/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg" does not exist in file "phpthumb.class.php" on line 4050
  * $this->cache_filename already set, skipping SetCacheFilename() in file "phpthumb.class.php" on line 3398
  * starting ExtractEXIFgetImageSize() in file "phpthumb.class.php" on line 3236
  * GetImageSize(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) says image is x in file "phpthumb.class.php" on line 3246
  * GetImageSize("/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg") failed in file "phpthumb.class.php" on line 3279
  * $this->useRawIMoutput=true after checking $UnAllowedParameters in file "phpthumb.class.php" on line 1508
  * phpThumb_tempnam() returning "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache/pThumbmB6at5" in file "phpthumb.class.php" on line 4275
  * ImageMagickSwitchAvailable(thumbnail) = 1 in file "phpthumb.class.php" on line 1445
  * ImageMagickSwitchAvailable(density) = 1 in file "phpthumb.class.php" on line 1445
  * GetImageSize(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) FAILED with error "<br />
<b>Warning</b>:  getimagesize(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg): failed to open stream: No such file or directory in <b>/homepages/44/d615211338/htdocs/newtonart/membership/resize/phpthumb.class.php</b> on line <b>1596</b><br />
" in file "phpthumb.class.php" on line 1602
  * GetImageSize(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) failed in file "phpthumb.class.php" on line 1749
  * Remaining $this->fltr after ImageMagick: (array(0) { } ) in file "phpthumb.class.php" on line 2132
  * ImageMagickSwitchAvailable(quality;interlace) = 1 in file "phpthumb.class.php" on line 1442
  * ImageMagick called as (convert -density '150' -thumbnail '150x' -quality '75' -interlace line  '/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg[0]' jpeg:'/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache/pThumbmB6at5' 2>&1) in file "phpthumb.class.php" on line 2151
  * ImageMagick failed with message (convert: unable to open image `/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg':  @ error/blob.c/OpenBlob/2489.
convert: missing an image filename `jpeg:/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache/pThumbmB6at5' @ error/convert.c/ConvertImageCommand/2940.) in file "phpthumb.class.php" on line 2156
  * deleting "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache/pThumbmB6at5" in file "phpthumb.class.php" on line 2188
  * ImageMagickThumbnailToGD() failed in file "phpthumb.class.php" on line 3286
  * SetOrientationDependantWidthHeight() starting with ""x"" in file "phpthumb.class.php" on line 3215
  * SetOrientationDependantWidthHeight() setting w="150", h="0" in file "phpthumb.class.php" on line 3231
  * EXIF thumbnail extraction: (size=0; type=""; 0x0) in file "phpthumb.class.php" on line 3343
  * starting SourceImageToGD() in file "phpthumb.class.php" on line 3603
  * starting ImageCreateFromFilename(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) in file "phpthumb.class.php" on line 3518
  * empty $filename or GetImageSize(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) failed in file "phpthumb.class.php" on line 3567
  * Populating $rawimagedata in file "phpthumb.class.php" on line 3575
  * cannot fopen(/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg) in file "phpthumb.class.php" on line 3586
  * Not using EXIF thumbnail data because $this->exif_thumbnail_data is empty in file "phpthumb.class.php" on line 3674
  * $this->gdimg_source is still empty in file "phpthumb.class.php" on line 3726
  * ImageMagickThumbnailToGD() failed in file "phpthumb.class.php" on line 3728
  * phpThumb() v1.7.13-201406261000
http://phpthumb.sourceforge.net

failed to open "/homepages/44/d615211338/htdocs/newtonart/membership/resize/resize/images/B-52.jpg" SourceImageToGD() [3832] in file "phpthumb.class.php" on line 4050
  * SourceImageToGD() failed in file "phpthumb.class.php" on line 351
  * CleanUpCacheDirectory() set to purge (NULL days; NULL MB; NULL files) in file "phpthumb.class.php" on line 667
  * CleanUpCacheDirectory() skipped because "/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache//phpThumbCacheStats.txt" is recently modified in file "phpthumb.class.php" on line 677
  * RenderOutput() failed because !is_resource($this->gdimg_output) in file "phpthumb.class.php" on line 425
  * RenderOutput [jpeg(/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache//2/27/phpThumb_cache_cyberartisans.info__src278667ec27be9d2b504f25c2d39d6408_par0b9e73569dbbfe81d5e1ff2a11d92887_dat0.jpeg)] failed in file "phpthumb.class.php" on line 561
  * Failed: RenderToFile(/homepages/44/d615211338/htdocs/newtonart/membership/resize/cache//2/27/phpThumb_cache_cyberartisans.info__src278667ec27be9d2b504f25c2d39d6408_par0b9e73569dbbfe81d5e1ff2a11d92887_dat0.jpeg) in file "phpThumb.php" on line 611

$this->debugtiming:
  * 1468441921.565079 : phpThumb() constructor in file "phpthumb.class.php" on line 219
  * 1468441921.556154 : phpThumb.php start in file "phpThumb.php" on line 119
  * 1468441921.566272 : phpThumbDebug[0] in file "phpThumb.php" on line 211
  * 1468441921.566301 : phpThumbDebug[1] in file "phpThumb.php" on line 267
  * 1468441921.566333 : phpThumbDebug[2] in file "phpThumb.php" on line 314
  * 1468441921.566527 : phpThumbDebug[3] in file "phpThumb.php" on line 348
  * 1468441921.566574 : phpThumbDebug[4] in file "phpThumb.php" on line 415
  * 1468441921.566592 : phpThumbDebug[5] in file "phpThumb.php" on line 500
  * 1468441921.566767 : phpThumbDebug[6] in file "phpThumb.php" on line 516
  * 1468441921.566789 : phpThumbDebug[7] in file "phpThumb.php" on line 581
  * 1468441921.579171 : phpThumbDebug[8] in file "phpThumb.php" on line 591
  * 1468441921.579317 : phpThumbDebug[9] in file "phpThumb.php" on line 624
  * Total processing time: 0.023163

Hello,

I'm using latest phpThumb from master and no matter what parameters I set, the trasparency information on the generated thumbnail is always lost.

<?php
require_once(dirname(__FILE__) . '/lib/phpthumb.class.php');

$phpThumb = new phpThumb();
$phpThumb->setParameter('config_disable_debug', false);
$phpThumb->setParameter('config_allow_src_above_docroot', true);
$phpThumb->setSourceFilename(dirname(__FILE__) . '/test-alpha.png');

$phpThumb->setParameter('w', 320);
$phpThumb->setParameter('h', 320);

$phpThumb->setParameter('zc', 'C');
$phpThumb->setParameter('f', 'png');

$phpThumb->GenerateThumbnail();
$phpThumb->RenderToFile(dirname(__FILE__) . "/result.png");

The transparent png is this one:

and the result.png is this (of course it looks identical because the background of the page here is also white!)

Is this a known problem? Do you know of any workaround to preserve the transparency in the generated thumbnail?

Thanks!

In the debug file, there seems to be this line that's indicating a problem with the source, but viewing the URL shows the image fine.

Error opening "https://www.bellavou.co.uk:443/wp-content/uploads/rear-view-woman-weight-loss-tummy-tuck-liposuction-150x150.jpg":

I have other images on the page displaying okay, and both of tem run on my local copy. Is there anywhere else in the debug file I can look? I have tried clearing cache.

Hi

Unable to display image with PHP 8.1. There are some deprecated coding changes. Can we expect an update soon?

For now, I have removed the codes that cause the error, but it seems that there will be other problems in the future.

Thank you

Am using this value the "phpThumb :: sample photo gallery demo" page:

$basedir = 'test/phpThumb/images/'; (this is the path to my webroot for the images folder, as exists in the unzipped directory...) I am using this on my local web server; All files have good permissions, and the phpThumb.demo.check.php page gives acceptable results except for one red item: php_sapi_name(): apache2handler

I get; This is a demo of how you can use phpThumb() in an image gallery. failed to open "test/phpThumb/images/"

I am using this on my local web server; All files have good permissions, and the phpThumb.demo.check.php page gives acceptable results except for one red item: php_sapi_name(): apache2handler

The sample photo gallery almost works on my production server, which shows in orange: php_sapi_name(): cgi-fcgi

The page comes up, but the images are broken; opening the images in another tab references phpThumb.php?src=test%2FphpThumb%2Fimages%2F%2Fmask05.png&zc=1&w=120&h=120

I have the following set:

$PHPTHUMB_CONFIG['cache_maxage'] = null;            // never delete cached thumbnails based on last-access time
$PHPTHUMB_CONFIG['cache_maxsize'] = 20 * 1024 * 1024; // delete least-recently-accessed cached thumbnails when more than [20MB] of cached files are present (value is maximum bytesize of all cached files)
$PHPTHUMB_CONFIG['cache_maxfiles'] = null;          // never delete cached thumbnails based on number of cached files

But my cache directory is currently 37MB. What can I do to troubleshoot this? All cache checks are green when I run phpThumb.demo.check.php

Getting error caused by function call

Deprecated: Function get_magic_quotes_gpc() is deprecated in /home/.../phpThumb/phpThumb.php on line 222
**Headers already sent in file "/home/.../phpThumb/phpThumb.php" on line "222", dumping error message as text:**

phpThumb.php on line 222

if (get_magic_quotes_gpc()) {
	// deprecated: 'err', 'file', 'goto',
	$RequestVarsToStripSlashes = array('src', 'wmf', 'down');
	foreach ($RequestVarsToStripSlashes as $key) {
		if (isset($_GET[$key])) {
			if (is_string($_GET[$key])) {
				$_GET[$key] = stripslashes($_GET[$key]);
			} else {
				unset($_GET[$key]);
			}
		}
	}
}

removing or commenting this condition solves the error

Hi James,

Great plugin! Quick question though, because these images are no longer images and are in fact PHP files, when running a Google Page Speed Insights test, all the images flag up as having no expiry date in the HTTP headers.

I have W3 Total Cache installed, which sets expiry dates for all media files, but obviously these aren't seen as media files and are not touched.

Is there anything in your plugin files that can set an expiry date, and not have the 24 hours, as Google Page Speed Insights is reporting?

Hello,

It would be nice to be able to load the phpThumb library as a dependency using the PHP dependency manager Composer (http://getcomposer.org).

As the project is not currently a Composer package I have to define the repository in my project:

{
    "name": "My Project",
    "minimum-stability": "dev",
    "prefer-stable": true,
    "repositories": [
        {
            "type": "package",
            "package": {
                "name": "JamesHeinrich/phpThumb",
                "version": "dev-master",
                "source": {
                    "type": "git",
                    "url": "git://github.com/JamesHeinrich/phpThumb.git",
                    "reference": "master"
                }
            }
        }
    ],
    "require": {
        "JamesHeinrich/phpThumb": "dev-master"
    },
    "autoload": {
        "files": [
            "vendor/JamesHeinrich/phpThumb/phpthumb.class.php"
        ]
    }
}

Could the phpThumb library be altered to include a composer.json file that defines it as a Composer package?

It would also be lovely if other releases (1.7.11, 1.7.12, etc) are tagged and defined as versions. Then a project can specify which version of the library it requires.

The autoloading of the class might be able to be tidied up too, possibly using the PSR-0 standard.

All the best, Pete

I had ImageMagick 6.9.8-3 installed but recently compiled a newer version 6.9.11-24 with HEIC support. Imagick is updated and works and phpinfo shows the correct versions installed. When I run a convert --version I get:

Version: ImageMagick 6.9.11-24 Q16 x86_64 2020-07-30 https://imagemagick.org
Copyright: © 1999-2020 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC Modules
Delegates (built-in): freetype heic jng jpeg ltdl png tiff webp wmf xml zlib

Which is the new version. However, when I run the configuration demo, I still get the old version reported. Also HEIC images seem not to be supported, so for whatever reason phpThumb is still using the old version. Any way to rectify this?

ImageMagick version: | /opt/bitnami/common/bin/convert [1] [1] [1] [1] [1]convert6.9.8-3 Q16

I also get:

sh: 1: ./identify: not found

But it is definitely there when I run identify from the terminal.

Thanks!

Hi,

I've beginning to see similar error messages 2-3 months ago. Since, I see some each and every day. I updated to the latest phpthumb version but it's not fixed.

I don't understand, file existence is tested at line 585-586, but when the routine is executed, 2 warnings are issued about the file not existing and of course it doesn't exit.

L 585: if (@is_readable($phpThumb->cache_filename)) { RedirectToCachedFile(); }

Error log:

[03-Jan-2023 13:34:28 Europe/London] PHP Warning: md5_file(/home/website/public_html/phpthumb/cache//2/24/241/241c/phpThumb_cache_websitem.com__src241c8bc9a337c655007f0d9d648f0bb5_parc4c1605620aa671602749d7a607a8d05_dat1649164802.jpeg): failed to open stream: No such file or directory in /home/website/public_html/phpthumb/phpThumb.php on line 99 [03-Jan-2023 13:34:28 Europe/London] PHP Stack trace: [03-Jan-2023 13:34:28 Europe/London] PHP 1. {main}() /home/website/public_html/phpthumb/phpThumb.php:0 [03-Jan-2023 13:34:28 Europe/London] PHP 2. RedirectToCachedFile() /home/website/public_html/phpthumb/phpThumb.php:586 [03-Jan-2023 13:34:28 Europe/London] PHP 3. md5_file($filename = '/home/website/public_html/phpthumb/cache//2/24/241/241c/phpThumb_cache_websitem.com__src241c8bc9a337c655007f0d9d648f0bb5_parc4c1605620aa671602749d7a607a8d05_dat1649164802.jpeg') /home/website/public_html/phpthumb/phpThumb.php:99 [03-Jan-2023 13:34:28 Europe/London] PHP Warning: file_get_contents(/home/website/public_html/phpthumb/cache//2/24/241/241c/phpThumb_cache_websitem.com__src241c8bc9a337c655007f0d9d648f0bb5_parc4c1605620aa671602749d7a607a8d05_dat1649164802.jpeg): failed to open stream: No such file or directory in /home/website/public_html/phpthumb/phpThumb.php on line 109 [03-Jan-2023 13:34:28 Europe/London] PHP Stack trace: [03-Jan-2023 13:34:28 Europe/London] PHP 1. {main}() /home/website/public_html/phpthumb/phpThumb.php:0 [03-Jan-2023 13:34:28 Europe/London] PHP 2. RedirectToCachedFile() /home/website/public_html/phpthumb/phpThumb.php:586 [03-Jan-2023 13:34:28 Europe/London] PHP 3. file_get_contents($filename = '/home/website/public_html/phpthumb/cache//2/24/241/241c/phpThumb_cache_websitem.com__src241c8bc9a337c655007f0d9d648f0bb5_parc4c1605620aa671602749d7a607a8d05_dat1649164802.jpeg') /home/website/public_html/phpthumb/phpThumb.php:109

And of course, impossible to know what image or file caused this initially, I literally have hundreds of images using phpthumb.

PHP Version 8.1.13 warning ~

[] PHP Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /.../phpthumb/phpthumb.class.php on line 1990

1. How does one control the quality in Webp or other lossy formats like AVIF, is the q factor used same as JPEG?

I am testing this and I get webp's of the same size regardless of how q is set, so I presume it's ignored atm. If I'm wrong please advise. They are also quite large so must be defaulting to a fairly high quality.

2. Equally, we need a way to specify generation of lossless Webp etc. vs lossy. q=100 ?

I'm processing some logo files which are flat colours. If I convert them to PNG the files are always PNG-24 but ideally they should be PNG-8 as output files would be around a third of the size. Is there a way of forcing this? I've tried fltr[]=rcd|128 which partially works but results in a grey background, even though I'm setting bg=FFFFFF

The only workaround I've found for now is to use GIF instead, which isn't ideal. Any ideas?

Images are broken on initial page load of new image until a page refresh is done. Only happens on php 8.1 not on 8.0 I have tried this test on different servers with php 8.1 and this is the result. Cache directory does fill up, but the image is broken in browser.

Hello,

first of all, thank you for your good work!

The issue on my installation (PHP 8): For several months, an error of unknown origin has occurred from time to time. When it occurs, it occurs (for unknown reasons) exactly 6 times.

The error messages look like this:

phpThumb() v1.7.17-202109221111 in file "phpthumb.class.php" on line 234
setSourceFilename(/home/mywebdir/html/mywebsite//assets/galleries/35/) set $this->sourceFilename to "/home/mywebdir/html/mywebsite//assets/galleries/35/" in file "phpthumb.class.php" on line 299
Addding ImageMagick formats to $AvailableImageOutputFormats (text;ico;bmp;wbmp;gif;webp;png;jpeg) in file "phpthumb.class.php" on line 1005
$AvailableImageOutputFormats = array(text;ico;bmp;wbmp;gif;webp;png;jpeg) in file "phpthumb.class.php" on line 1011
$this->thumbnailFormat set to $this->config_output_format "jpeg" in file "phpthumb.class.php" on line 1022
$this->thumbnailFormat set to $this->f "jpeg" in file "phpthumb.class.php" on line 1029
$this->thumbnailQuality set to "85" in file "phpthumb.class.php" on line 1039
resolvePath: /home/mywebdir/html/mywebsite//assets/galleries/35/ (allowed_dirs: Array ( ) ) in file "phpthumb.class.php" on line 1182
resolvePath: iteration, path=/home/mywebdir/html/mywebsite//assets/galleries/35/, base path = /home/mywebdir/html/mywebsite in file "phpthumb.class.php" on line 1201
open_basedir: "/home/mywebdir/:/tmp/:/opt/php-8.0/lib/php/:/dev/urandom" in file "phpthumb.class.php" on line 1168
resolvePath: stop at component 10 in file "phpthumb.class.php" on line 1217
resolvePath: stop at path=/home/mywebdir/html/mywebsite/assets/galleries/35 in file "phpthumb.class.php" on line 1220
resolvePath: path parsed, over in file "phpthumb.class.php" on line 1226
$this->sourceFilename set to "/home/mywebdir/html/mywebsite/assets/galleries/35" in file "phpthumb.class.php" on line 932
phpThumb() v1.7.17-202109221111 http://phpthumb.sourceforge.net Error messages disabled. edit phpThumb.config.php and (temporarily) set $PHPTHUMB_CONFIG['disable_debug'] = false; to view the details of this error in file "phpthumb.class.php" on line 4270
SetCacheFilename() _src set from md5($this->sourceFilename) "/home/mywebdir/html/mywebsite/assets/galleries/35" = "16916372b794c224f0de077cab2f1975" in file "phpthumb.class.php" on line 3615
SetCacheFilename() _par set from md5(_fltrwb_w600_dpi150_q85) in file "phpthumb.class.php" on line 3654
starting ExtractEXIFgetImageSize() in file "phpthumb.class.php" on line 3408
getimagesize(/home/mywebdir/html/mywebsite/assets/galleries/35) failed in file "phpthumb.class.php" on line 3420
getimagesize("/home/mywebdir/html/mywebsite/assets/galleries/35") failed in file "phpthumb.class.php" on line 3450
$this->useRawIMoutput=true after checking $UnAllowedParameters in file "phpthumb.class.php" on line 1654
phpThumb_tempnam() returning "/home/mywebdir/html/mywebsite/assets/cache/pThumbOi0nVA" in file "phpthumb.class.php" on line 4499
ImageMagickSwitchAvailable(thumbnail) = 1 in file "phpthumb.class.php" on line 1580
getimagesize(/home/mywebdir/html/mywebsite/assets/galleries/35) FAILED with error "" in file "phpthumb.class.php" on line 1751
ImageMagickSwitchAvailable(density) = 1 in file "phpthumb.class.php" on line 1580
getimagesize(/home/mywebdir/html/mywebsite/assets/galleries/35) failed in file "phpthumb.class.php" on line 1931
ImageMagickSwitchAvailable(channel;contrast-stretch) = 1 in file "phpthumb.class.php" on line 1577
Skipping $this->fltr[0] (wb) with ImageMagick in file "phpthumb.class.php" on line 2312
Remaining $this->fltr after ImageMagick: (array(1) { [0]=> string(2) "wb" } ) in file "phpthumb.class.php" on line 2315
ImageMagickSwitchAvailable(quality;interlace) = 1 in file "phpthumb.class.php" on line 1577
ImageMagick called as (convert '/home/mywebdir/html/mywebsite/assets/galleries/35[0]' -flatten -density '150' -thumbnail '600x' -channel R -contrast-stretch '0.1%' -channel G -contrast-stretch '0.1%' -channel B -contrast-stretch '0.1%' +channel -quality '85' -interlace line jpeg:'/home/mywebdir/html/mywebsite/assets/cache/pThumbOi0nVA' 2>&1) in file "phpthumb.class.php" on line 2333
ImageMagick failed with message (convert-im6.q16: no decode delegate for this image format `' @ error/constitute.c/ReadImage/560. convert-im6.q16: no images defined `jpeg:/home/mywebdir/html/mywebsite/assets/cache/pThumbOi0nVA' @ error/convert.c/ConvertImageCommand/3258.) in file "phpthumb.class.php" on line 2338
deleting "/home/mywebdir/html/mywebsite/assets/cache/pThumbOi0nVA" in file "phpthumb.class.php" on line 2370
ImageMagickThumbnailToGD() failed in file "phpthumb.class.php" on line 3457
SetOrientationDependantWidthHeight() starting with ""x"" in file "phpthumb.class.php" on line 3387
SetOrientationDependantWidthHeight() setting w="600", h="0" in file "phpthumb.class.php" on line 3403
EXIF thumbnail extraction: (size=0; type=""; 0x0) in file "phpthumb.class.php" on line 3516
starting SourceImageToGD() in file "phpthumb.class.php" on line 3782
starting ImageCreateFromFilename(/home/mywebdir/html/mywebsite/assets/galleries/35) in file "phpthumb.class.php" on line 3695
empty $filename or getimagesize(/home/mywebdir/html/mywebsite/assets/galleries/35) failed in file "phpthumb.class.php" on line 3746
Populating $rawimagedata in file "phpthumb.class.php" on line 3754
Not using EXIF thumbnail data because $this->exif_thumbnail_data is empty in file "phpthumb.class.php" on line 3854
$this->gdimg_source is still empty in file "phpthumb.class.php" on line 3906
ImageMagickThumbnailToGD() failed in file "phpthumb.class.php" on line 3908
phpThumb() v1.7.17-202109221111 http://phpthumb.sourceforge.net Error messages disabled. edit phpThumb.config.php and (temporarily) set $PHPTHUMB_CONFIG['disable_debug'] = false; to view the details of this error in file "phpthumb.class.php" on line 4270
SourceImageToGD() failed in file "phpthumb.class.php" on line 379
-- 

Any idea how to fix it?