3v4l.org

run code in 500+ PHP versions simultaneously
<?php $ok_exts = array("jpg", "jpeg", "png", "gif", "bmp"); $file_check = strtolower('jpg'); if (in_array($file_check, $ok_exts)) { echo 'true'; } else { echo 'false'; } echo PHP_EOL; $file_check = strtolower('JPG'); if (in_array($file_check, $ok_exts)) { echo 'true'; } else { echo 'false'; } echo PHP_EOL; $file_check = strtolower('PDF'); if (in_array($file_check, $ok_exts)) { echo 'true'; } else { echo 'false'; } echo PHP_EOL;
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
true true false
preferences:
29.82 ms | 1137 KiB | 7 Q