ext/curl: curl_getinfo, curl_multi_get_handles and curl_multi_setopt array optimisations. (php#18389)

mainly change to packed arrays.

Author: devnexen

ext/curl/interface.c

@@ -2747,6 +2747,7 @@ PHP_FUNCTION(curl_getinfo)
 						if (curl_easy_getinfo(ch->cp, option, &slist) == CURLE_OK) {
 							struct curl_slist *current = slist;
 							array_init(return_value);
+							zend_hash_real_init_packed(Z_ARRVAL_P(return_value));
 							while (current) {
 								add_next_index_string(return_value, current->data);
 								current = current->next;

ext/curl/multi.c

@@ -185,7 +185,8 @@ PHP_FUNCTION(curl_multi_get_handles)
 
 	mh = Z_CURL_MULTI_P(z_mh);
 
-	array_init(return_value);
+	array_init_size(return_value, zend_llist_count(&mh->easyh));
+	zend_hash_real_init_packed(Z_ARRVAL_P(return_value));
 	zend_llist_position pos;
 	zval	*pz_ch;
 
@@ -420,10 +421,11 @@ static int _php_server_push_callback(CURL *parent_ch, CURL *easy, size_t num_hea
 	ch->cp = easy;
 	_php_setup_easy_copy_handlers(ch, parent);
 
-	array_init(&headers);
+	array_init_size(&headers, num_headers);
+	zend_hash_real_init_packed(Z_ARRVAL(headers));
 	for (size_t i = 0; i < num_headers; i++) {
 		char *header = curl_pushheader_bynum(push_headers, i);
-		add_next_index_string(&headers, header);
+		add_index_string(&headers, i, header);
 	}
 
 	ZEND_ASSERT(pz_parent_ch);