Convert preg_replace to preg_replace_callback

Question

I need help in converting preg_replace to preg_replace_callback.

PHP 5.4 and above firing the following statement: The /e modifier is deprecated, use preg_replace_callback instead in

I've tried changing:

if (stripos ( $tpl->copy_template, "[category=" ) !== false) {
    $tpl->copy_template = preg_replace ( "#\\[category=(.+?)\\](.*?)\[/category\\]#ies",         "check_category('\\1', '\\2', '{$category_id}')", $tpl->copy_template );
}

to

if (stripos ( $tpl->copy_template, "[category=" ) !== false) {
    $tpl->copy_template = preg_replace_callback ( "#\\[category=(.+?)\\](.*?)\\[/category\\]#isu", 
        function($cat){
            return check_category($cat['1'], $cat['2'], $category_id);
        }
    , $tpl->copy_template );
}

the return is empty

checks for categories... it quite big, so i decided not to include it. function check_category($cats, $block, $category, $action = true) {..} — Orlo
– Orlo, Commented Feb 4, 2014 at 2:53

Sharanya Dutta · Accepted Answer · 2014-02-04 03:08:32Z

2

Since $category_id is a global variable, you have to use it inside a function with the global keyword. And the keys of a numeric array are integers rather than strings; so you have to write $cat[1] instead of $cat['1'] and $cat[2] instead of $cat['2'].

With these minor alterations, your function becomes:

function($cat){
        global $category_id;
        return check_category($cat[1], $cat[2], $category_id);
}

edited Feb 4, 2014 at 3:08

answered Feb 4, 2014 at 2:56

Sharanya Dutta

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