From af1a908f56746008fe8ec456ca1067127b48d915 Mon Sep 17 00:00:00 2001
From: Jakub Vrana <jakub@vrana.cz>
Date: Tue, 23 Feb 2021 12:42:11 +0100
Subject: [PATCH] Unsubstite constants (PHP 5 is now required)

---
 adminer/drivers/mysql.inc.php     |  2 +-
 adminer/include/bootstrap.inc.php |  2 +-
 adminer/include/pdo.inc.php       | 10 +++++-----
 compile.php                       |  2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/adminer/drivers/mysql.inc.php b/adminer/drivers/mysql.inc.php
index a2728941..ebb5106b 100644
--- a/adminer/drivers/mysql.inc.php
+++ b/adminer/drivers/mysql.inc.php
@@ -266,7 +266,7 @@ if (!defined("DRIVER")) {
 			}
 
 			function query($query, $unbuffered = false) {
-				$this->pdo->setAttribute(1000, !$unbuffered); // 1000 - PDO::MYSQL_ATTR_USE_BUFFERED_QUERY
+				$this->pdo->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, !$unbuffered);
 				return parent::query($query, $unbuffered);
 			}
 		}
diff --git a/adminer/include/bootstrap.inc.php b/adminer/include/bootstrap.inc.php
index a178e3ae..8eaff399 100644
--- a/adminer/include/bootstrap.inc.php
+++ b/adminer/include/bootstrap.inc.php
@@ -4,7 +4,7 @@ function adminer_errors($errno, $errstr) {
 }
 
 error_reporting(6135); // errors and warnings
-set_error_handler('adminer_errors', 2); // 2 - E_WARNING
+set_error_handler('adminer_errors', E_WARNING);
 
 include "../adminer/include/coverage.inc.php";
 
diff --git a/adminer/include/pdo.inc.php b/adminer/include/pdo.inc.php
index d7da9caa..a4281215 100644
--- a/adminer/include/pdo.inc.php
+++ b/adminer/include/pdo.inc.php
@@ -13,14 +13,14 @@ if (extension_loaded('pdo')) {
 		}
 		
 		function dsn($dsn, $username, $password, $options = array()) {
+			$options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT;
+			$options[PDO::ATTR_STATEMENT_CLASS] = array('Min_PDOStatement');
 			try {
 				$this->pdo = new PDO($dsn, $username, $password, $options);
 			} catch (Exception $ex) {
 				auth_error(h($ex->getMessage()));
 			}
-			$this->pdo->setAttribute(3, 0); // 3 - PDO::ATTR_ERRMODE, 0 - PDO::ERRMODE_SILENT
-			$this->pdo->setAttribute(13, array('Min_PDOStatement')); // 13 - PDO::ATTR_STATEMENT_CLASS
-			$this->server_info = @$this->pdo->getAttribute(4); // 4 - PDO::ATTR_SERVER_VERSION
+			$this->server_info = @$this->pdo->getAttribute(PDO::ATTR_SERVER_VERSION);
 		}
 		
 		/*abstract function select_db($database);*/
@@ -84,11 +84,11 @@ if (extension_loaded('pdo')) {
 		var $_offset = 0, $num_rows;
 		
 		function fetch_assoc() {
-			return $this->fetch(2); // PDO::FETCH_ASSOC
+			return $this->fetch(PDO::FETCH_ASSOC);
 		}
 		
 		function fetch_row() {
-			return $this->fetch(3); // PDO::FETCH_NUM
+			return $this->fetch(PDO::FETCH_NUM);
 		}
 		
 		function fetch_field() {
diff --git a/compile.php b/compile.php
index eb685253..73f2edb5 100755
--- a/compile.php
+++ b/compile.php
@@ -5,7 +5,7 @@ function adminer_errors($errno, $errstr) {
 }
 
 error_reporting(6135); // errors and warnings
-set_error_handler('adminer_errors', 2); // 2 - E_WARNING
+set_error_handler('adminer_errors', E_WARNING);
 include dirname(__FILE__) . "/adminer/include/version.inc.php";
 include dirname(__FILE__) . "/externals/JsShrink/jsShrink.php";