ZEND_SEND_BY_REF 828 Zend/zend_compile.h CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_BY_REF, ZEND_ACC_PASS_REST_BY_REFERENCE) ZEND_SEND_BY_REF 831 Zend/zend_compile.h CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_BY_REF|ZEND_SEND_PREFER_REF, ZEND_ACC_PASS_REST_BY_REFERENCE|ZEND_ACC_PASS_REST_PREFER_REF) ZEND_SEND_BY_REF 2511 ext/reflection/php_reflection.c RETVAL_BOOL(param->arg_info->pass_by_reference != ZEND_SEND_BY_REF);