PHP經常使用函數前100排行榜

1、背景

這兩天在努力記單詞，想着應該把最常使用的單詞先記下來，從網上找了幾篇文章以後分析了一批詞彙，效果還算不錯；

接着又想到了代碼，也好奇開發者最常使用的單詞或函數有哪些，我統計了三種類型：系統函數、變量名、自定義函數名等統計，感興趣的朋友能夠將正則設置爲本身須要統計的規則。

2、參考代碼

<?php

function scanMyDir($path)
{
    $path = rtrim($path, '/');
    // 打開目錄
    $dh = opendir($path);

    // 循環讀取目錄
    while (($file = readdir($dh)) !== false) {
        // 先要過濾掉當前目錄'.'和上一級目錄'..'
        if ($file == '.' || $file == '..' || $file == '.git') continue;

        if (strpos($file, ".php") > 1) {
            // 爲了可以顯示中文目錄/文件，須要進行轉碼
            $_SERVER['fileList'][] = $path . '/' . iconv('gbk', 'utf-8', $file);
        }

        // 若是該文件仍然是一個目錄，進入遞歸
        if (is_dir($path . '/' . $file)) {
            scanMyDir($path . '/' . $file);
        }
    }
}


function explodeCount($fileName, $pregRule)
{
    $text = file_get_contents($fileName);
    preg_match_all($pregRule, $text, $keywordArr);
    foreach ($keywordArr[1] as $keyword) {
        $_SERVER['count'][$keyword] = $_SERVER['count'][$keyword] ?? 0;
        $_SERVER['count'][$keyword] += 1;
    }
}

function start($path, $pregRule)
{
    scanMyDir($path);
    //把要統計的文件寫入到當前文件夾中，方便查看統計了那些文件
    file_put_contents("fileList.txt", implode("\n", $_SERVER['fileList']));

    //從上一個文件中讀取要統計的文件列表，
    $fileList = file_get_contents("fileList.txt");
    $fileList = explode("\n", $fileList);

    //遍歷統計每一個文件中的詞彙
    foreach ($fileList as $fileName) {
        explodeCount($fileName, $pregRule);
    }

    //將結果寫入到文件當中以前，先作好排序
    arsort($_SERVER['count']);
    //只須要前100個
    $_SERVER['count'] = array_slice($_SERVER['count'], 0, 100);
    //將結果寫入到文件中去
    $sumResult = var_export($_SERVER['count'], true);
    file_put_contents("countResult.txt", $sumResult);
}


//要統計的代碼目錄
$path = '/root/mycode/work/offcn-live/vendor';

//$pregRule = '/ ([a-z]+_?[a-z]+)\(/';  //系統函數規則
//$pregRule = '/(\$[a-zA-Z]+_?[a-zA-Z]+)/';   //變量名規則
$pregRule = '/[->:]+([a-z]+_?[a-z]+)\(/'; //自定義函數名規則
start($path, $pregRule);

3、經常使用函數

array (
  'array' => 6126,
  'isset' => 1345,
  'substr' => 845,
  'sprintf' => 737,
  'strlen' => 650,
  'count' => 598,
  'unset' => 556,
  'array_merge' => 449,
  'list' => 413,
  'strpos' => 408,
  'str_replace' => 393,
  'implode' => 348,
  'explode' => 333,
  'is_array' => 332,
  'static' => 297,
  'trim' => 263,
  'declare' => 238,
  'mock' => 237,
  'pack' => 232,
  'preg_match' => 222,
  'is_null' => 210,
  'get_class' => 203,
  'array_map' => 195,
  'self' => 191,
  'strtolower' => 190,
  'empty' => 183,
  'preg_replace' => 180,
  'chr' => 169,
  'function_exists' => 163,
  'user_error' => 161,
  'handle' => 158,
  'is_string' => 155,
  'is_object' => 140,
  'str_repeat' => 139,
  'array_keys' => 138,
  'rewind' => 137,
  'in_array' => 133,
  'write' => 132,
  'mt_rand' => 132,
  'array_values' => 129,
  'time' => 125,
  'not' => 124,
  'array_shift' => 124,
  'extract' => 120,
  'getenv' => 115,
  'reset' => 113,
  'execute' => 112,
  'printf' => 110,
  'fopen' => 108,
  'get' => 105,
  'collect' => 100,
  'current' => 100,
  'fclose' => 99,
  'unpack' => 96,
  'strval' => 96,
  'matches' => 92,
  'rtrim' => 90,
  'str_pad' => 88,
  'json_encode' => 88,
  'array_filter' => 88,
  'array_pop' => 85,
  'app' => 84,
  'range' => 84,
  'dirname' => 83,
  'define' => 81,
  'microtime' => 80,
  'foo' => 80,
  'create' => 80,
  'ord' => 80,
  'compact' => 79,
  'read' => 77,
  'method_exists' => 76,
  'register' => 75,
  'realpath' => 74,
  'intval' => 73,
  'bar' => 73,
  'strtotime' => 73,
  'fread' => 72,
  'class_exists' => 72,
  'print' => 72,
  'max' => 72,
  'curl_setopt' => 70,
  'fwrite' => 69,
  'tap' => 66,
  'strtoupper' => 65,
  'array_unshift' => 65,
  'serialize' => 64,
  'ob_start' => 64,
  'unserialize' => 63,
  'strrpos' => 61,
  'key' => 61,
  'preg_split' => 61,
  'ini_get' => 61,
  'add' => 59,
  'close' => 59,
  'array_slice' => 58,
  'putenv' => 57,
  'eval' => 57,
  'gettype' => 56,
  'var_export' => 56,
)

4、經常使用變量名

array (
  '$this' => 75572,
  '$value' => 6303,
  '$options' => 4731,
  '$key' => 4597,
  '$name' => 4367,
  '$vendorDir' => 4310,
  '$message' => 4115,
  '$request' => 3453,
  '$stackPos' => 3237,
  '$response' => 2796,
  '$result' => 2577,
  '$data' => 2308,
  '$path' => 2117,
  '$node' => 1733,
  '$type' => 1650,
  '$method' => 1620,
  '$file' => 1449,
  '$arguments' => 1415,
  '$class' => 1408,
  '$callback' => 1378,
  '$output' => 1364,
  '$command' => 1314,
  '$parameters' => 1273,
  '$config' => 1252,
  '$expected' => 1197,
  '$column' => 1153,
  '$input' => 1140,
  '$id' => 1119,
  '$headers' => 1083,
  '$event' => 1083,
  '$args' => 986,
  '$attributes' => 979,
  '$length' => 961,
  '$code' => 950,
  '$query' => 947,
  '$prefix' => 947,
  '$mock' => 930,
  '$token' => 925,
  '$context' => 909,
  '$test' => 892,
  '$temp' => 884,
  '$header' => 871,
  '$matches' => 847,
  '$object' => 825,
  '$string' => 813,
  '$container' => 810,
  '$server' => 810,
  '$stream' => 768,
  '$collection' => 768,
  '$route' => 761,
  '$values' => 761,
  '$record' => 748,
  '$exception' => 748,
  '$actual' => 719,
  '$connection' => 712,
  '$item' => 697,
  '$constraint' => 670,
  '$operation' => 666,
  '$date' => 655,
  '$bucket' => 648,
  '$array' => 644,
  '$line' => 643,
  '$count' => 641,
  '$uri' => 622,
  '$buf' => 618,
  '$handler' => 608,
  '$default' => 598,
  '$table' => 594,
  '$content' => 578,
  '$reader' => 558,
  '$resource' => 549,
  '$application' => 549,
  '$tokens' => 541,
  '$locale' => 539,
  '$attribute' => 531,
  '$format' => 518,
  '$filename' => 510,
  '$className' => 509,
  '$str' => 505,
  '$parts' => 505,
  '$matcher' => 499,
  '$text' => 498,
  '$queue' => 483,
  '$generator' => 480,
  '$filter' => 476,
  '$client' => 475,
  '$level' => 468,
  '$domain' => 467,
  '$writer' => 464,
  '$argument' => 460,
  '$number' => 459,
  '$option' => 452,
  '$payload' => 448,
  '$keys' => 445,
  '$process' => 444,
  '$translator' => 437,
  '$app' => 435,
  '$listener' => 430,
  '$files' => 429,
  '$index' => 422,
)

5、經常使用自定義函數

array (
  'once' => 1292,
  'with' => 1105,
  'get' => 997,
  'expects' => 700,
  'method' => 651,
  'set' => 612,
  'create' => 600,
  'add' => 588,
  'foo' => 464,
  'format' => 434,
  'write' => 429,
  'execute' => 421,
  'all' => 378,
  'evaluate' => 344,
  'has' => 320,
  'register' => 318,
  'fail' => 294,
  'find' => 286,
  'run' => 284,
  'any' => 280,
  'start' => 254,
  'parse' => 233,
  'load' => 203,
  'make' => 200,
  'read' => 191,
  'generate' => 185,
  'factory' => 182,
  'close' => 164,
  'current' => 155,
  'render' => 152,
  'ask' => 149,
  'numerify' => 146,
  'will' => 145,
  'where' => 137,
  'singleton' => 133,
  'writeln' => 128,
  'valid' => 125,
  'next' => 124,
  'main' => 122,
  'send' => 121,
  'trans' => 117,
  'request' => 116,
  'option' => 113,
  'handle' => 112,
  'matches' => 111,
  'match' => 110,
  'contains' => 103,
  'write_shortstr' => 103,
  'process' => 101,
  'never' => 100,
  'at' => 99,
  'initialize' => 97,
  'rewind' => 96,
  'bind' => 92,
  'validate' => 90,
  'dispatch' => 88,
  'filter' => 86,
  'in' => 86,
  'copy' => 85,
  'verify' => 84,
  'delete' => 83,
  'wrap' => 81,
  'put' => 79,
  'stop' => 78,
  'mock' => 78,
  'dump' => 78,
  'supports' => 78,
  'observe' => 77,
  'encrypt' => 77,
  'attach' => 75,
  'first' => 74,
  'apply' => 73,
  'remove' => 72,
  'invoke' => 72,
  'connection' => 71,
  'advance' => 69,
  'decrypt' => 69,
  'ordered' => 69,
  'save' => 68,
  'resolve' => 68,
  'prepare' => 67,
  'println' => 67,
  'auth' => 65,
  'reset' => 65,
  'bar' => 64,
  'write_short' => 64,
  'call' => 63,
  'map' => 63,
  'compare' => 63,
  'string' => 62,
  'log' => 62,
  'wait' => 61,
  'info' => 61,
  'update' => 60,
  'escape' => 60,
  'lookup' => 58,
  'write_bits' => 57,
  'count' => 57,
  'push' => 56,
  'times' => 55,
)

---

後面的數字，表明爲在代碼中出現的次數，我用的四項目的vendor目錄，裏面都是一些比較經常使用的開源代碼庫，因此應該算是比較有參考價值

做者：湯青松
日期: 2020-06-30