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<?php $res = preg_match('/^(A{1,2}B)+$/',str_repeat('AB',8192)); if ($res === false) { var_dump(preg_last_error() == PREG_JIT_STACKLIMIT_ERROR); } ?>

Generated using Vulcan Logic Dumper, using php 8.0.0


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46.46 ms | 2262 KiB | 4 Q