42 lines
1014 B
PHP
42 lines
1014 B
PHP
<?php
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// Utility functions
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// Check if request was to specified file
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function Utils_ThisFileIsRequested ($fullpath): bool {
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return substr($fullpath, -strlen($_SERVER["SCRIPT_NAME"])) === $_SERVER["SCRIPT_NAME"];
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}
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// Generate secure random string
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function Utils_GenerateRandomString (int $length, string $keyspace = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"): string {
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if ($length < 1) {
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die("cant generate random string of size less than 1");
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}
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$pieces = [];
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$max = mb_strlen($keyspace, "8bit") - 1;
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for ($i = 0; $i < $length; ++$i) {
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$pieces []= $keyspace[random_int(0, $max)];
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}
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return implode('', $pieces);
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}
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// Get ratio from two values
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function Utils_GetRatio ($x, $y) {
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if ($x === $y)
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return 1;
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return max($x, $y) / min($x, $y);
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}
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// Join two or more paths pieces to single
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function Utils_JoinPaths () {
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$paths = array();
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foreach (func_get_args() as $arg) {
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if ($arg !== '') { $paths[] = $arg; }
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}
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return preg_replace('#/+#','/',join('/', $paths));
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}
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?>
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