Table of Contents
前 100 分析
后记
Home Backend Development PHP Tutorial Collect 100 of the most commonly used PHP functions

Collect 100 of the most commonly used PHP functions

Jul 07, 2020 pm 04:35 PM
php function

Collect 100 of the most commonly used PHP functionsThe following list is the top 100 most commonly used PHP functions: they are the most commonly used functions that come with PHP.

The functions are named and ordered from 1 to 100. The other 4500 functions are not currently ranked. The following frequency list represents how often this function is used in PHP code: References come from 1900 PHP open source projects. They were reviewed using version 1.2.5 of the Exakat static analysis engine. The average is the number of times this function is called in a project. Some functions are used by wrappers, while others are main functions.

For example, 4 out of 5 projects use the count function, and the function is called about 150 times. It shows that it is very popular and widely used.

Click the function name to jump to the PHP documentation. There are some summary insights at the bottom of the Top 100 article.

排行 函数 频率 平均值
1 count 81.41 % 147.67
2 is_array 77.32 % 117.86
3 substr 74.62 % 142.92
4 in_array 74.16 % 79.55
5 explode 73.19 % 71.51
6 str_replace 72.32 % 101.05
7 implode 72.27 % 66.59
8 strlen 70.07 % 98.32
9 array_merge 69.46 % 64.01
10 strpos 67.98 % 78.18
11 preg_match 67.31 % 76.60
12 sprintf 67.16 % 119.46
13 trim 66.75 % 81.28
14 strtolower 65.99 % 59.62
15 file_exists 65.12 % 45.13
16 is_string 61.39 % 45.10
17 preg_replace 60.27 % 54.28
18 file_get_contents 59.96 % 20.71
19 array_key_exists 59.70 % 57.50
20 array_keys 59.35 % 39.59
21 dirname 56.44 % 54.84
22 function_exists 53.58 % 42.62
23 array_map 53.22 % 19.45
24 get_class 53.12 % 33.07
25 class_exists 52.50 % 23.13
26 is_object 51.94 % 35.35
27 time 51.79 % 41.42
28 json_encode 51.48 % 24.81
29 date 50.72 % 52.18
30 is_null 49.69 % 60.52
31 is_numeric 49.49 % 40.69
32 array_shift 49.49 % 23.28
33 defined 48.72 % 86.82
34 is_dir 48.57 % 22.86
35 json_decode 48.42 % 17.39
36 header 48.16 % 59.71
37 strtoupper 47.80 % 30.95
38 array_values 47.24 % 17.27
39 md5 46.88 % 23.74
40 method_exists 46.73 % 19.05
41 file_put_contents 46.68 % 12.49
42 rtrim 45.91 % 18.08
43 array_pop 45.51 % 20.60
44 unlink 44.59 % 23.55
45 basename 44.59 % 27.23
46 realpath 44.08 % 15.90
47 call_user_func 43.97 % 16.41
48 call_user_func_array 43.92 % 18.40
49 fopen 43.77 % 25.61
50 microtime 43.46 % 14.41
51 fclose 42.85 % 28.36
52 is_int 42.75 % 15.78
53 is_file 42.08 % 20.52
54 array_slice 41.83 % 13.20
55 preg_match_all 40.55 % 14.66
56 ucfirst 40.25 % 17.02
57 intval 40.19 % 88.13
58 str_repeat 40.14 % 19.51
59 serialize 40.14 % 22.05
60 array_filter 39.99 % 13.87
61 mkdir 39.79 % 11.17
62 is_callable 39.43 % 11.94
63 ltrim 39.17 % 10.90
64 ob_start 39.12 % 13.26
65 round 39.07 % 28.56
66 fwrite 38.97 % 23.39
67 array_unique 38.87 % 15.96
68 array_search 38.82 % 14.19
69 reset 38.71 % 20.79
70 array_unshift 38.10 % 10.32
71 parse_url 37.90 % 9.61
72 func_get_args 37.79 % 28.33
73 end 37.49 % 12.70
74 base64_encode 37.39 % 14.15
75 unserialize 37.18 % 18.35
76 max 36.98 % 22.88
77 preg_split 36.98 % 13.27
78 gettype 36.93 % 16.16
79 strrpos 36.67 % 11.95
80 version_compare 36.67 % 14.87
81 array_push 36.67 % 26.18
82 floor 36.11 % 18.78
83 strtotime 36.01 % 27.94
84 htmlspecialchars 35.96 % 51.08
85 ini_get 35.85 % 19.25
86 ini_set 35.60 % 14.49
87 chr 35.34 % 186.97
88 extension_loaded 35.29 % 14.17
89 is_bool 35.24 % 11.44
90 ksort 34.98 % 10.82
91 array_reverse 34.93 % 8.27
92 ord 34.73 % 53.17
93 uniqid 34.68 % 9.83
94 strtr 34.47 % 12.90
95 array_diff 34.32 % 11.13
96 error_reporting 34.17 % 8.99
97 ceil 33.35 % 11.99
98 urlencode 33.30 % 29.63
99 min 32.69 % 18.31
100 print_r 32.64 % 14.12

前 100 分析

  • 最常用的 PHP 函数是字符串函数,然后是数组函数,接着是文件函数。 (运算函数不在此列主要是因为他们通常基于运算符)

  • 每个函数的链接都指向其对应的文档,事实上许多函数经过发展以及获得了许多新特性,例如:count() 的第二个参数,dirname() 的第二个参数以及 preg_match() 和  str_replace() 接受数组作为参数等。有很多彩蛋。

  • 以上 100 个函数没有近期要废弃的计划。

  • 在非内置库中,mbstring 排名第一、curl 第二,然后是 gd、filter 和 iconv。

  • md5 是最常用的加密函数,其次是 Sha1 (#147)。

  • print_r 出现在 1/3 的项目代码里面的某处,任何地方 ...

  • 由于 dirname(dirname(dirname())) 的调用,dirname 的使用频率非常高。

  • arrayechoprintemptyisset 这些没有纳入此排名,它们的使用度肯定是非常高的。

  • 如下几个函数应该用运算符替代 : array_pushis_objectfunc_get_argchrcall_user_func

  • 相当多的调用是为了知道值的类型。

  • 数据库函数没有在这里排名:他们经常使用类,但功能仍然很频繁。可能是另一个前 100 名?

  • 相比写入文件 PHP 更多的应用于读取文件。它还解码 base64。

  • 使用键排序比使用值或使用键更频繁。

  • 通常使用 file_get_contents 读取文件, 使用 fwrite 写入文件。

后记

如果你正在学习 PHP,最好回顾一下这里排名的 100 个功能。它们是你加入一个编码团队后最常找到的功能。它们不是唯一的,但遇到它们时你会不那么惊讶。

相关学习推荐:php编程从入门到精通

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