!=和!==之间的区别
问题描述:
在我的情况下,应按以下方式使用!=,或更合适的是!==,有什么区别.
In my case should I use != as below, or is !== more appropriate, what is the difference.
private function authenticateApi($ip,$sentKey) {
$mediaServerIp = '62.80.198.226';
$mediaServerKey = '45d6ft7y8u8rf';
if ($ip != $mediaServerIp ) {
return false
}
elseif ($sentKey != $mediaServerKey ) {
return false
}
else {
return true;
}
}
public function setVideoDeletedAction(Request $request)
{
//Authenticate sender
if ( $this->authenticateApi($request->server->get("REMOTE_ADDR"),$request->headers->get('keyFile')) != true ) {
new response("Din IP [$ip] eller nyckel [********] är inte godkänd för denna åtgärd.");
}
答
!=检查值
if($a != 'true')
!==检查值并输入两者
!== checks value and type both
if($a !== 'true')