代码片段仓库

<?php
function quickSort(&$arr) {
    $n = count($arr);
    if ($n <= 1) return $arr;
    $pivot = $arr[0];
    $left = $right = [];
    for ($i = 1; $i < $n; $i++) {
        if ($arr[$i] < $pivot) $left[] = $arr[$i];
        else $right[] = $arr[$i];
    }
    return array_merge(quickSort($left), array($pivot), quickSort($right));
}

<?php
function compressString($string) {
    return gzcompress($string);
}

<?php
$name = mysqli_real_escape_string($db, $_POST['name']);
$sql = "SELECT * FROM users WHERE name = '$name'";

<?php
header('Location: http://example.com');
exit;

<?php
function fibonacci($n) {
    $a = 0; $b = 1;
    for ($i = 0; $i < $n; $i++) {
        $temp = $a;
        $a = $b;
        $b = $temp + $b;
    }
    return $a;
}

<?php
function createThumb($source, $dest, $width, $height) {
    $img = imagecreatefromstring($source);
    $thumb = imagecreatetruecolor($width, $height);
    imagecopyresampled($thumb, $img, 0, 0, 0, 0, $width, $height, imagesx($img), imagesy($img));
    imagepng($thumb, $dest);
}