3v4l.org

run code in 300+ PHP versions simultaneously
<?php // This is valid, both opening ( and closing ) var_dump(preg_match('~Valid(Regular)Expression~', null) === false); // This is invalid, no opening ( for the closing ) var_dump(preg_match('~InvalidRegular)Expression~', null) === false);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/lhjZr on line 3 bool(false) Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/lhjZr on line 5 Warning: preg_match(): Compilation failed: unmatched closing parenthesis at offset 14 in /in/lhjZr on line 5 bool(true)
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
bool(false) Warning: preg_match(): Compilation failed: unmatched closing parenthesis at offset 14 in /in/lhjZr on line 5 bool(true)
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, 5.5.0 - 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
bool(false) Warning: preg_match(): Compilation failed: unmatched parentheses at offset 14 in /in/lhjZr on line 5 bool(true)
Output for 4.3.0 - 4.3.10
bool(false) Warning: Compilation failed: unmatched parentheses at offset 14 in /in/lhjZr on line 5 bool(true)
preferences:
315.18 ms | 401 KiB | 457 Q