Want to submit large content through opera browser

When I submited a large content say 400kb file (41开发者_运维问答0042 characters) through form. If working fine for Fire fox, IE 8, and Safari. But when I submitted the content through the Opera 9 browser the form not getting submitted I got blank screen.

Thanks in advance

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Set you error handling to see what the problem may be.

ini_set('display_errors', 'on');
ini_set('error_reporting', E_ALL);

This may provide insight as to whether the error is a PHP issue or an Opera issue. Also, install FireBug to examine the headers that are returned from the server when this script runs.