3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = 'thearea:北京/北京市/石景山区:9'; $s = preg_replace_callback("/^.+?:(.+?)\/(.+?)\/(.+?):.+?$/", function($match) { return $match[4]; }, $s); echo $s;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined array key 4 in /in/UcDEO on line 4
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined offset: 4 in /in/UcDEO on line 4
Output for 7.3.32 - 7.3.33
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/UcDEO on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/UcDEO on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/UcDEO on line 3
Process exited with code 255.
preferences:
247.7 ms | 401 KiB | 459 Q