PHP actual C extension array

The content of this article is about the array of PHP's actual C extension. It has a certain reference value. Now I share it with you. Friends in need can refer to it.

I recently looked at the C extension writing of PHP. , try to access array processing, and learned several HashTable processing functions recorded as follows:

zend_hash_next_index_insert Insert data (numeric array or associative array);

zend_hash_add Insert associative array

zend_hash_index_update Numeric array or associative array

zend_hash_update Update associative array

Code:

   zval *arr, *prefix, *entry,;
    zend_string *string_key;
    zend_ulong num_key;
    int a;
    if (zend_parse_parameters(ZEND_NUM_ARGS(), "aa", &arr, &prefix) == FAILURE) {
        return;
    }
    a = zend_hash_num_elements(Z_ARRVAL_P(arr)) + zend_hash_num_elements(Z_ARRVAL_P(prefix));
    array_init_size(return_value,a );
    ZEND_HASH_FOREACH_KEY_VAL(Z_ARRVAL_P(arr), num_key, string_key, entry) {
         zend_hash_next_index_insert(Z_ARRVAL_P(return_value), entry);
    } ZEND_HASH_FOREACH_END();

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