Only load PDO subclass polyfills when corresponding extension is loaded

Author: jnoordsij

src/Php84/Resources/stubs/Pdo/Dblib.php

@@ -13,7 +13,7 @@
 use PDO;
 use PDOException;
 
-if (\PHP_VERSION_ID < 80400) {
+if (\PHP_VERSION_ID < 80400 && extension_loaded('pdo_dblib')) {
     class Dblib extends PDO
     {
         public const ATTR_CONNECTION_TIMEOUT = PDO::DBLIB_ATTR_CONNECTION_TIMEOUT;

src/Php84/Resources/stubs/Pdo/Firebird.php

@@ -13,7 +13,7 @@
 use PDO;
 use PDOException;
 
-if (\PHP_VERSION_ID < 80400) {
+if (\PHP_VERSION_ID < 80400 && extension_loaded('pdo_firebird')) {
     class Firebird extends PDO
     {
         public const ATTR_DATE_FORMAT = PDO::FB_ATTR_DATE_FORMAT;

src/Php84/Resources/stubs/Pdo/Mysql.php

@@ -13,7 +13,7 @@
 use PDO;
 use PDOException;
 
-if (\PHP_VERSION_ID < 80400) {
+if (\PHP_VERSION_ID < 80400 && extension_loaded('pdo_mysql')) {
     // Feature detection for non-mysqlnd; see also https://www.php.net/manual/en/class.pdo-mysql.php#pdo-mysql.constants.attr-max-buffer-size
     if (defined('PDO::MYSQL_ATTR_MAX_BUFFER_SIZE') && defined('PDO::MYSQL_ATTR_READ_DEFAULT_FILE') && defined('PDO::MYSQL_ATTR_READ_DEFAULT_GROUP'))
     {

src/Php84/Resources/stubs/Pdo/Odbc.php

@@ -13,7 +13,7 @@
 use PDO;
 use PDOException;
 
-if (\PHP_VERSION_ID < 80400) {
+if (\PHP_VERSION_ID < 80400 && extension_loaded('pdo_odbc')) {
     class Odbc extends PDO
     {
         public const ATTR_USE_CURSOR_LIBRARY = PDO::ODBC_ATTR_USE_CURSOR_LIBRARY;

src/Php84/Resources/stubs/Pdo/Pgsql.php

@@ -13,7 +13,7 @@
 use PDO;
 use PDOException;
 
-if (\PHP_VERSION_ID < 80400) {
+if (\PHP_VERSION_ID < 80400 && extension_loaded('pdo_pgsql')) {
     class Pgsql extends PDO
     {
         public const ATTR_DISABLE_PREPARES = PDO::PGSQL_ATTR_DISABLE_PREPARES;

src/Php84/Resources/stubs/Pdo/Sqlite.php

@@ -13,7 +13,7 @@
 use PDO;
 use PDOException;
 
-if (\PHP_VERSION_ID < 80400) {
+if (\PHP_VERSION_ID < 80400 && extension_loaded('pdo_sqlite')) {
     class Sqlite extends PDO
     {
         public const ATTR_EXTENDED_RESULT_CODES = \PHP_VERSION_ID >= 70400 ? \PDO::SQLITE_ATTR_EXTENDED_RESULT_CODES : 1002;