Fatal error: Cannot re-assign auto-global variable _POST in /home/xxx/public_html/wp-content/themes/rtthemes16/rt-framework/classes/admin.php on line 540.

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function rt_check_sidebar_array($_POST){

if(is_array($_POST)){

$start_unset_count = 0;

foreach($_POST as $key => $value){
if(stristr($key, '_sidebar_name') == TRUE && $value=="") {
unset($_POST[$key]);
$start_unset_count = 1;
}

if($start_unset_count>0){
unset($_POST[$key]);
$start_unset_count++;
}

if($start_unset_count==6){
$start_unset_count = 0;
}
}
}


$newPost == $newPost ? $newPost : $_POST;
return $_POST;
}
Any insights? Thanks :)