zstep            1596 ext/standard/array.c 	zval *zlow, *zhigh, *zstep = NULL;
zstep            1600 ext/standard/array.c 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z/z/|z/", &zlow, &zhigh, &zstep) == FAILURE) {
zstep            1604 ext/standard/array.c 	if (zstep) {
zstep            1605 ext/standard/array.c 		if (Z_TYPE_P(zstep) == IS_DOUBLE ||
zstep            1606 ext/standard/array.c 			(Z_TYPE_P(zstep) == IS_STRING && is_numeric_string(Z_STRVAL_P(zstep), Z_STRLEN_P(zstep), NULL, NULL, 0) == IS_DOUBLE)
zstep            1611 ext/standard/array.c 		convert_to_double_ex(&zstep);
zstep            1612 ext/standard/array.c 		step = Z_DVAL_P(zstep);