How to get the $_SERVER variables in Zend Framework

We can get this by calling the method $this->getRequest()->getServer() in the Zend_Controller_Action

How to remove the session name space in Zend Framework

Session name space can be removed using the function
Zend_Session::namespaceUnset($nameOfspace)

How to remove the recipients in the Zend Framework

We can use the clearRecipients function in the Zend_Mail class
Zend_Mail::clearRecipients();

check and uncheck the all checkbox using javascript

/**
pass the checkbox_name array
**/
function checkAll(form_object, checkbox_name)
{
for(var i=0; i < form_object[checkbox_name].length; i++)
{
form_object[checkbox_name][i].checked = true;
}
}

function uncheckAll(form_object, checkbox_name)
{
for(var i=0; i < form_object[checkbox_name].length; i++){

form_object[checkbox_name][i].checked = false;

}
}

Convert video file to .flv format

xec("ffmpeg -i '/home/tut2pr8c/public_html/videos/$video_file' -ar 22050 -ab 32 -f flv -y -s 400x320 /home/tut2pr8c/public_html/video_flv/$new_video_file_name");
exec("ffmpeg -i '/home/tut2pr8c/public_html/videos/$video_file' -ar 22050 -ab 32 -f flv -y -s 400x320 /home/tut2pr8c/public_html/video_flv/$new_video_file_name");