php_mb_rfc1867_substring_conf 1143 mbstring/mbstring.c return php_mb_rfc1867_substring_conf(encoding, str, strlen(str), quote TSRMLS_CC); php_mb_rfc1867_substring_conf 1150 mbstring/mbstring.c return php_mb_rfc1867_substring_conf(encoding, str, strend - str, 0 TSRMLS_CC);