add mysql-specific warning count function

[Danack]

Description

https://github.com/php/php-src/pull/6677/files

Viewed
@@ -0,0 +1,22 @@
--TEST--
MySQL PDO->mysqlGetWarningCount()
--SKIPIF--
<?php
require_once(__DIR__ . DIRECTORY_SEPARATOR . 'skipif.inc');
require_once(__DIR__ . DIRECTORY_SEPARATOR . 'mysql_pdo_test.inc');
MySQLPDOTest::skip();
?>
--FILE--
<?php
	require_once(__DIR__ . DIRECTORY_SEPARATOR . 'mysql_pdo_test.inc');
	$db = MySQLPDOTest::factory();
	$assertWarnings = function ($db, $q, $count) {
		$db->query($q);
		printf("Query %s produced %d warnings\n", $q, $db->mysqlGetWarningCount());
	};
	$assertWarnings($db, 'SELECT 1 = 1', 0);
	$assertWarnings($db, 'SELECT 1 = "A"', 1);
?>
--EXPECT--
Query SELECT 1 = 1 produced 0 warnings
Query SELECT 1 = "A" produced 1 warnings



/* {{{ proto string PDO::mysqlGetWarningCount()
   Returns the number of SQL warnings during the execution of the last statement */
static PHP_METHOD(PDO, mysqlGetWarningCount)
{
	pdo_dbh_t *dbh;
	pdo_mysql_db_handle *H;

	dbh = Z_PDO_DBH_P(ZEND_THIS);
	PDO_CONSTRUCT_CHECK;

	H = (pdo_mysql_db_handle *)dbh->driver_data;
	RETURN_LONG(mysql_warning_count(H->server));
}
/* }}} */

static const zend_function_entry dbh_methods[] = {
	PHP_ME(PDO, mysqlGetWarningCount, NULL, ZEND_ACC_PUBLIC)
	PHP_FE_END
};

static const zend_function_entry *pdo_mysql_get_driver_methods(pdo_dbh_t *dbh, int kind)
{
	switch (kind) {
		case PDO_DBH_DRIVER_METHOD_KIND_DBH:
			return dbh_methods;
		default:
			return NULL;
	}
}

/* {{{ pdo_mysql_request_shutdown */
static void pdo_mysql_request_shutdown(pdo_dbh_t *dbh)
{
@@ -625,7 +655,7 @@ static const struct pdo_dbh_methods mysql_methods = {
	pdo_mysql_fetch_error_func,
	pdo_mysql_get_attribute,
	pdo_mysql_check_liveness,
	NULL,
	pdo_mysql_get_driver_methods,
	pdo_mysql_request_shutdown,
	pdo_mysql_in_transaction,
	NULL /* get_gc */

[Danack]

This is done.