Here is the top 100 PHP functions: it is the list of the most often used PHP native functions

Max Base

Last update: Dec 11, 2022

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Overview

Top PHP Functions

If you are a PHP developer, you must know the Top 100 PHP Functions deeply.

The 100 PHP functions that you have to know (2022)

Here is the top 100 PHP functions: it is the list of the most often used PHP native functions.

Why this repository? As a lead developer in the team, I am teaching the functions to my team members deeply.

Where is the Data?

The functions are named, and ranked from 1 to 100. The other 4500 functions are not ranked here.

The frequency column represents how often this function is used across PHP code repositories: the reference corpus is a list of 2500 PHP Open Source projects (top 1000 composer, github/gitlab/gitee public repo, downloaded archives…).

PHP Functions

Rank	Function	Frequency	Average
1	file_exists	62.80%	13
2	str_replace	58.20%	33
3	implode	57.31%	35
4	count	56.42%	61
5	dirname	56.38%	13
6	substr	55.84%	53
7	sprintf	55.26%	80
8	strpos	55.07%	24
9	array_merge	54.80%	35
10	in_array	51.39%	33
11	explode	51.35%	26
12	strlen	50.97%	35
13	is_array	50.73%	46
14	array_key_exists	49.54%	28
15	array_keys	49.27%	16
16	preg_match	46.52%	28
17	file_get_contents	46.48%	8
18	is_file	44.43%	6
19	array_values	42.81%	7
20	file_put_contents	42.46%	4
21	trim	41.57%	25
22	method_exists	41.49%	8
23	defined	40.87%	19
24	is_string	40.76%	20
25	function_exists	40.29%	20
26	array_map	39.33%	12
27	preg_replace	39.02%	17
28	strtolower	38.94%	19
29	is_dir	38.67%	6
30	strtr	38.01%	5
31	call_user_func	37.01%	4
32	strrpos	36.70%	4
33	call_user_func_array	36.43%	3
34	array_flip	35.89%	2
35	fwrite	35.89%	4
36	rtrim	35.69%	6
37	filter_var	35.65%	2
38	ini_get	35.15%	5
39	json_decode	34.76%	7
40	array_filter	34.76%	7
41	realpath	34.15%	4
42	header	34.07%	7
43	class_exists	34.03%	12
44	json_encode	33.49%	9
45	trigger_error	32.95%	5
46	get_class	32.95%	13
47	spl_autoload_register	32.10%	1
48	unlink	30.43%	5
49	headers_sent	29.78%	1
50	is_object	29.31%	11
51	mkdir	29.20%	2
52	array_shift	28.69%	6
53	spl_autoload_unregister	28.54%	1
54	apcu_fetch	28.23%	0
55	array_pop	28.11%	5
56	stream_resolve_include_path	27.84%	0
57	is_int	27.65%	5
58	apcu_add	27.57%	0
59	getcwd	27.49%	1
60	strtoupper	27.42%	6
61	is_numeric	26.95%	9
62	array_unique	26.91%	4
63	ltrim	26.60%	4
64	basename	26.57%	4
65	str_repeat	26.26%	7
66	fopen	25.91%	6
67	array_slice	24.94%	3
68	getenv	24.94%	4
69	var_export	24.71%	3
70	preg_match_all	24.67%	3
71	is_callable	24.48%	4
72	reset	24.44%	4
73	preg_split	24.40%	3
74	fclose	24.36%	5
75	array_unshift	24.25%	3
76	gettype	24.21%	4
77	end	23.90%	3
78	array_search	23.82%	3
79	max	23.78%	5
80	extension_loaded	23.59%	3
81	is_bool	23.55%	2
82	version_compare	22.82%	3
83	preg_quote	22.78%	3
84	time	22.70%	9
85	ucfirst	22.66%	4
86	ksort	22.66%	2
87	preg_replace_callback	22.54%	3
88	md5	22.51%	4
89	array_reverse	22.47%	2
90	array_diff	22.12%	2
91	is_readable	22.00%	1
92	microtime	21.96%	4
93	copy	21.81%	1
94	parse_url	21.81%	2
95	is_null	21.50%	17
96	base64_encode	21.42%	3
97	current	21.38%	2
98	is_resource	21.08%	3
99	serialize	20.77%	4
100	key	20.57%	2

Source: https://www.exakat.io/en/the-100-php-functions/

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Here is the top 100 PHP functions: it is the list of the most often used PHP native functions

Related tags

Overview

Top PHP Functions

The 100 PHP functions that you have to know (2022)

Where is the Data?

PHP Functions

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Owner

Max Base

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