//校验 function filters($grams){ if(get_magic_quotes_gpc()) { $resgram = trim($grams); $resgram = htmlspecialchars($resgram); } else { $resgram = addslashes(trim($grams)); $resgram = htmlspecialchars($resgram); } return $resgram; } 调用 $c
//校验
function filters($grams){
    if(get_magic_quotes_gpc()) {
        $resgram = trim($grams);
        $resgram = htmlspecialchars($resgram);    
    } else {
        $resgram = addslashes(trim($grams));
        $resgram = htmlspecialchars($resgram);    
    }
    return $resgram;
}
调用
$channel_id_g= filters($_session['channel_id_g']);//渠道id