After the code is modified according to the video, it prompts "This official account is temporarily unable to provide services. Please try again later.""

Question

After instantiating the object, a judgment was made. As a result, when the official account responded, it prompted "

This official account is temporarily unable to provide services. Please try again later"

"

大牛哥 · Answer

Change if($_GET['echostr']) to if(isset($_GET['echostr'])) and it will be normal

ringa_lee · Answer

Please first check whether the official account has enabled this function

Eli · Answer

Why don’t you post the code and take a look?