How to modify one condition inside a function without arg input? - php

Question

I need to call a function that output a html. Inside this function, there's one condition to exclude one row from the html, I need this row. This condition is not an argument of the function. It's hard coded. So, I have to code my own, or, is there a way to modify this condition?
function get_media_item( $attachment_id, $args = null ) {
//....lots stuffs, then, arrive this part:
$gallery = ( ( isset( $_REQUEST['tab'] ) && 'gallery' == $_REQUEST['tab'] ) || ( isset( $redir_tab ) && 'gallery' == $redir_tab ) );
$order = '';
foreach ( $form_fields as $key => $val ) {
if ( 'menu_order' == $key ) {
if ( $gallery )
$order = "<div class='menu_order'> <input class='menu_order_input' type='text' id='attachments[$attachment_id][menu_order]' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ). "' /></div>";
else
$order = "<input type='hidden' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' />";
unset( $form_fields['menu_order'] );
break;
}
}
//... other stuffs
}
I need to call this function in other tabs, not "gallery" tab. So, I can't get the $order input box.

Answer 1

If you don't want to pass a parameter to the function(which would be recommended btw) to modify the condition, you can use globalize variable(or session).
Example:
function test(){
global $instructions;
if (isset($instructions['fetch'])){
// new codes
} else {
// existing codes
}
return $result;
}
// implement:
$instructions = array();
$instructions['fetch'] = TRUE;
echo test();