1 PHP_FUNCTION(array_fill_keys)
2 {
3 zval *keys, *val, *entry;
4
5 if (zend_parse_parameters(ZEND_NUM_ARGS(), "az", &keys, &val) == FAILURE) {
6 return;
7 }
8
9 /* Initialize return array */
10 array_init_size(return_value, zend_hash_num_elements(Z_ARRVAL_P(keys)));
11
12 // 遍历数组keys
13 ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(keys), entry) {
14 ZVAL_DEREF(entry);
15 Z_TRY_ADDREF_P(val);
16 /* 以数组key值为键，val为值。插入返回的数组return_value */
17 if (Z_TYPE_P(entry) == IS_LONG) {
18 zend_hash_index_update(Z_ARRVAL_P(return_value), Z_LVAL_P(entry), val);
19 } else {
20 zend_string *key = zval_get_string(entry);
21 zend_symtable_update(Z_ARRVAL_P(return_value), key, val);
22 zend_string_release(key);
23 }
24 } ZEND_HASH_FOREACH_END();
25 }
