3v4l.org

run code in 300+ PHP versions simultaneously
<?php set_error_handler(function ($_, $errstr) { restore_error_handler(); echo 'handler:' . var_export($errstr, true) . \PHP_EOL; }); echo 'execution:' . \var_export(\preg_match('//u', "\xc3\x28"), true) . \PHP_EOL; echo 'error:' . var_export(\preg_last_error(), true) . \PHP_EOL; echo 'compilation:' . \var_export(\preg_match('/(/', 'a'), true) . \PHP_EOL; echo 'error:' . var_export(\preg_last_error(), true) . \PHP_EOL; \restore_error_handler(); echo 'ok:' . var_export(\preg_match('/./', 'a'), true) . \PHP_EOL; echo 'error:' . var_export(\preg_last_error(), true) . \PHP_EOL;
Output for 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
execution:false error:4 handler:'preg_match(): Compilation failed: missing closing parenthesis at offset 1' compilation:false error:1 ok:1 error:0
Output for 7.2.29 - 7.2.33
execution:false error:4 handler:'preg_match(): Compilation failed: missing ) at offset 1' compilation:false error:1 ok:1 error:0
Output for 5.3.4 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0
execution:false error:4 handler:'preg_match(): Compilation failed: missing ) at offset 1' compilation:false error:4 ok:1 error:0
Output for 5.3.0 - 5.3.3
execution:0 error:4 handler:'preg_match(): Compilation failed: missing ) at offset 1' compilation:false error:4 ok:1 error:0
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, expecting ')' in /in/RtkBu 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, expecting ')' in /in/RtkBu on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/RtkBu on line 3
Process exited with code 255.

preferences:
184.58 ms | 401 KiB | 344 Q