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run code in 300+ PHP versions simultaneously
<?php echo preg_replace_callback( '\d+', 'incr', '123abc456def789' ); function incr($args){ var_dump($args); }
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: preg_replace_callback(): Delimiter must not be alphanumeric, backslash, or NUL in /in/pml9P on line 3
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: preg_replace_callback(): Delimiter must not be alphanumeric, backslash, or NUL in /in/pml9P on line 3
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Warning: preg_replace_callback(): Delimiter must not be alphanumeric or backslash in /in/pml9P on line 6
Output for 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21
Warning: preg_replace_callback(): Delimiter must not be alphanumeric or backslash in /in/pml9P on line 7
Output for 4.3.0 - 4.3.10
Warning: Delimiter must not be alphanumeric or backslash in /in/pml9P on line 7

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203.98 ms | 401 KiB | 326 Q