PHP_PCRE_BACKTRACK_LIMIT_ERROR 65 pcre/php_pcre.c preg_code = PHP_PCRE_BACKTRACK_LIMIT_ERROR; PHP_PCRE_BACKTRACK_LIMIT_ERROR 150 pcre/php_pcre.c REGISTER_LONG_CONSTANT("PREG_BACKTRACK_LIMIT_ERROR", PHP_PCRE_BACKTRACK_LIMIT_ERROR, CONST_CS | CONST_PERSISTENT);