After I upgraded my php to 5.3 on my wamp, i got below error in my magento installation:
( ! ) SCREAM: Error suppression ignored for
( ! ) Fatal error: Method Varien_Object::__tostring() cannot take arguments in lib\Varien\Object.php on line 488
Call Stack
# Time Memory Function Location
1 0.0006 167808 {main}( ) ..\index.php:0
2 0.0081 360392 Mage::run( ) ..\index.php:68
3 0.0081 362544 Mage::app( ) ..\Mage.php:455
4 0.0189 803120 Mage_Core_Model_Config->__construct( ) ..\Mage.php:430
5 0.0189 803464 Varien_Autoload->autoload( ) ..\Mage.php:0
6 0.0198 835440 include( 'app\code\core\Mage\Core\Model\Config\Options.php' ) ..\Autoload.php:93
7 0.0198 835648 Varien_Autoload->autoload( ) ..\Autoload.php:0
There is easy fix for this:
Open lib/Varien/Object.php and look for below code in around line 484
public function __toString(array $arrAttributes = array(), $valueSeparator=',')
Replace it with:
public function __invoke(array $arrAttributes = array(), $valueSeparator=',')
Also, if you get Split deprecation error:
Open app/code/core/Mage/Core/Controller/Request/Http.php and look for below code in around line 199
$host = split(':', $_SERVER['HTTP_HOST']);
and replace with
$host = explode(':', $_SERVER['HTTP_HOST']);
Also change split to explode at: line 374 app\code\core\Mage\Admin\Model\User.php
Split has been DEPRECATED since PHP 5.3.0.