the syntax error is in this section of the code:
$WA_AB_Split . "?php echo(($row_SecurityAssistusers['UserEmail'] != $_POST[\"User_Update_group_Email\"])? '0': $row_SecurityAssistusers['emailVerified']); ?";
it should look more like this:
$WA_AB_Split . "".(($row_SecurityAssistusers['UserEmail'] != $_POST["User_Update_group_Email"])? "0": $row_SecurityAssistusers['emailVerified'])."";