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Editorial Team
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Asked: 2026-06-12T14:30:38+00:00

I am passing the following data through url : <?php $url = generate_pdf.php/?feed= .

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I am passing the following data through url : 

<?php    
   $url = "generate_pdf.php/?feed=" . urlencode(serialize($result));    
   echo '<div id="left-sidebar">';
   echo '<a href="' . $url . '"><div id="pdf">Download PDF</div></a>';
   echo '</div>';
?>

Here the $result containing the rss feed data in form of array. I am using urlencode(serialize($result) for passing that data through url and its working perfectly on local machine but in server it showing the following error : 

Request-URI Too Large
The requested URL's length exceeds the capacity limit for this server.

Please tell me your views to deal with this problem.

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1 Answer

  1. Editorial Team

    I made this mistake (It was more than not knowing than making a mistake!) once. I’ve build an ajax engine for webapps. It used only the get method. Once I had a form with a lot of data and it did not work.

    After some research I found out this: look here

    So basically most browser does not make any problems because they support approximately 100.000 characters. But most web-servers like Apache only support 4000 characters from a URL.

    No you can not just configure Apache to accept more. It is possible do but you have to edit the source code to do so.

    solution: Use the POST method it is made for large data transfer between web-servers and clients(which are most likely browsers).

    In your case I think you want to create a pdf with some user input an for some reason that input is larger than 4000 characters.

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