3v4l.org

run code in 500+ PHP versions simultaneously
<?php declare(strict_types=1); $file = new SplTempFileObject(); // write to file for ($i = 0; $i < 5; $i++) { $file->fwrite("line {$i}" . PHP_EOL); } $file->rewind(); // read first line $file->fgets(); // where am I? echo $file->key(), ': ', $file->current();
Output for 8.0.19 - 8.0.30, 8.1.6 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.33, 8.4.1 - 8.4.26, 8.5.0 - 8.5.9
1: line 0
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.18, 8.1.0 - 8.1.5
0: line 0

preferences:
22.36 ms | 1145 KiB | 14 Q