add skip conditions

Author: SakiTakamachi

ext/pdo_pgsql/tests/gh12423.phpt

@@ -7,6 +7,9 @@ pdo_pgsql
 <?php
 require __DIR__ . '/../../../ext/pdo/tests/pdo_test.inc';
 require __DIR__ . '/config.inc';
+if (strpos($config['ENV']['PDOTEST_DSN'], 'password=') === false && !isset($config['ENV']['PDOTEST_PASS'])) {
+    die('skip: no password');
+}
 PDOTest::skip();
 ?>
 --FILE--
@@ -17,12 +20,12 @@ $dsnWithCredentials = $config['ENV']['PDOTEST_DSN'];
 $user = $config['ENV']['PDOTEST_USER'] ?? null;
 $password = $config['ENV']['PDOTEST_PASS'] ?? null;
 if (!$user) {
-    preg_match('/user=([^ ]*?) /', $dsnWithCredentials, $match);
-    $user = $match[1] ?? null;
+    preg_match('/user=([^ ]*?)/', $dsnWithCredentials, $match);
+    $user = $match[1] ?? '';
 }
 if (!$password) {
     preg_match('/password=([^ ]*?)/', $dsnWithCredentials, $match);
-    $password = $match[1] ?? null;
+    $password = $match[1] ?? '';
 }
 $dsn = str_replace("user={$user}", '', $dsnWithCredentials);
 $dsn = str_replace("password={$password}", '', $dsn);