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<?php var_dump(preg_match('/a/u', " ", $m, 0, 1)); var_dump(preg_last_error_msg()); var_dump(preg_match('/(?:\D+|<\d+>)*[!?]/', "foobar foobar foobar", $m, 0, 1)); var_dump(preg_last_error_msg());
Output for git.master_jit, git.master, rfc.property-hooks
int(0) string(8) "No error" bool(false) string(25) "Backtrack limit exhausted"

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