PCRE_ERROR_RECURSIONLIMIT  723 ext/pcre/pcrelib/pcre_exec.c if (rdepth >= md->match_limit_recursion) RRETURN(PCRE_ERROR_RECURSIONLIMIT);
PCRE_ERROR_RECURSIONLIMIT   75 ext/pcre/php_pcre.c 		case PCRE_ERROR_RECURSIONLIMIT: