getting Error in magento

Question

When I go to my website I receive the following error (I downloaded this error file from the var folder):

a:5:{i:0;s:88:\"Cannot send headers; headers already sent in /home/eyewear/public_html/index.php, line 1\";i:1;s:943:\"#0 /home/eyewear/public_html/lib/Zend/Controller/Response/Abstract.php(115): Zend_Controller_Response_Abstract->canSendHeaders(true)

#1 /home/eyewear/public_html/app/code/core/Mage/Core/Model/App.php(1246): Zend_Controller_Response_Abstract->setHeader(\’Content-Type\’, \’text/html; char...\’)

#2 /home/eyewear/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(80): Mage_Core_Model_App->getResponse()

#3 /home/eyewear/public_html/app/code/core/Mage/Core/Model/Url/Rewrite.php(204): Mage_Core_Controller_Varien_Front->getResponse()

#4 /home/eyewear/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(166): Mage_Core_Model_Url_Rewrite->rewrite()

#5 /home/eyewear/public_html/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()

#6 /home/eyewear/public_html/app/Mage.php(683): Mage_Core_Model_App->run(Array)

#7 /home/eyewear/public_html/index.php(105): Mage::run(\’\’, \’store\’)

#8 {main}\”;s:3:\"url\”;s:1:\"/\”;s:11:\"script_name\”;s:10:\"/index.php\”;s:4:\"skin\”;s:7:\"default\";}

Before I got this error, I was optimizing the website by minifying CSS and one .js file. This error occurred soon after, so I reverted back to original unminified js and the error still remains.

Any help would be much appreciated.

Answer 1

Check for anything in all files, before the starting <?php and if the file ends with an ?>. Remove the trailing ?>. No one needs this.

This error is often raised, because you added a space before the stating <?php

And I think in later PHP versions, they improved the error by adding the information where the output started. Think about updating php to know this.