Trying to access a null type value using array offset

Question

I have a php bot (on IRC) and since I updated php and mysql to the latest versions of CentOS, I'm getting this error

unset($ops_activos);
    unset($voices_activos);
    if ($on_pthelp == 1) {
        if ($ops["#pthelp"]['count'] > 0) {
            foreach ($ops["#pthelp"] as $value) {
                if (!is_int($value)) {
                    if (isset($ops_activos)) {
                        $ops_activos .= " " . $value;
                    } else {
                        $ops_activos = $value;
                    }
                }
            }
            if ($bot_debug) {
                scmd("PRIVMSG ". $log_chan ." :[Membros (Mode)] [OPS]: ". $ops_activos);
            }
        }
        unset ($value);
        if ($voices["#pthelp"]['count'] > 0) {
            foreach ($voices["#pthelp"] as $value) {
                if (!is_int($value)) {
                    if (isset($voices_activos)) {
                        $voices_activos .= " " . $value;
                    } else {
                        $voices_activos = $value;
                    }
                    
                }
            }
            if ($bot_debug) {
                scmd("PRIVMSG ". $log_chan ." :[Membros (Mode)] [VOICES]: ". $voices_activos);
            }
        }

Error line

if ($ops["#pthelp"]['count'] > 0) {

Answer 1

Before comparing you need to check if the key you have exists in the array because it won't find it anyway.

Please use the following code instead:

if (isset($ops["#pthelp"]['count']) && $ops["#pthelp"]['count']> 0)

Also, doing this will avoid any further problems.

if (isset($voices["#pthelp"]['count']) &&  $voices["#pthelp"]['count'] > 0)