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<?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 git.master, git.master_jit, rfc.property-hooks
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)

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