将多个变量的使用添加到ob_start函数中

Question

I've got the following object start code; however, right now it only uses 1 variable ( $online ) .... I need to add a second variable ( $var2 ) to the code so that I can have "var2"=> $var2 under "online"=> $online. This needs to be added to the first line of code around where use (&$online) so the code knows the use this variable.

ob_start(function($c) use (&$online){
    $replacements = array(
        "online"=> $online
    );
    return preg_replace_callback("/{(\w+)}/",function($m) use ($replacements) {
        return isset($replacements[$m[1]]) ? $replacements[$m[1]] : $m[0];
    },$c);
});

How do I add this? Everything I try breaks the code completely.

Answer 1

You can add as many variables to a use as you like, just separate them as you would parameters:

function($c) use (&$online,&$var2)