mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-23 00:38:42 +00:00
34 lines
848 B
PHP
34 lines
848 B
PHP
<?php
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function uojRand($l, $r) {
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return mt_rand($l, $r);
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}
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function uojRandString($len, $charset = '0123456789abcdefghijklmnopqrstuvwxyz') {
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$n_chars = strlen($charset);
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$str = '';
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for ($i = 0; $i < $len; $i++) {
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$str .= $charset[uojRand(0, $n_chars - 1)];
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}
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return $str;
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}
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function uojRandAvaiableFileName($dir, $length = 20, $suffix = '') {
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do {
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$fileName = $dir . uojRandString($length);
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} while (file_exists(UOJContext::storagePath().$fileName.$suffix));
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return $fileName;
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}
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function uojRandAvaiableTmpFileName() {
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return uojRandAvaiableFileName('/tmp/');
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}
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function uojRandAvaiableSubmissionFileName() {
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$num = uojRand(1, 10000);
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if (!file_exists(UOJContext::storagePath()."/submission/$num")) {
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mkdir(UOJContext::storagePath()."/submission/$num", 0777, true);
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}
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return uojRandAvaiableFileName("/submission/$num/");
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}
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