论坛 › php › php中使用empty/unset去清空变量的warning

q989 发表于 2017-4-11 10:44:10

php中使用empty/unset去清空变量的warning

　　Note: empty()/unset()only checks variables as anything else will result in a parse error. Inother words, the following will not work: empty(trim($name)).


所以


if(!$this->odwp_empty() &&
            array_key_exists($action->odwp_get_key())){
            unset($action->odwp_get_key());
}



要变成


$key = $action->odwp_get_key();
if(!$this->odwp_empty() &&
            array_key_exists($key)){
            unset($key);
}

查看完整版本: php中使用empty/unset去清空变量的warning