php - user id which initiated script -


i'm developing website on wordpress platform. have strange issues caused user id. user initiated script:

global $user_id;

what mean is, when go page, , php executes, need know user id in php when code executes. reasons, sometime id not right.

also when php script executing , if do:

global $user_id =  get_current_user_id();

then have user id initiated script ?

the issue in strpos(), not smart function, not able find substring:

strpos($text,'{"user":"'.$user_id.'","status":"2"}');

but substr_count() worked. , not first time when strpos() fault... no more use it.


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