I feel there are 2 errors. I don’t know if they are correct or not. Please refer to them.
Error 1 The parent class is not initialized during initialization parnet::_initialize()
Error 2 empty and is_null are two concepts. Can an empty data be converted into flase? One is a null value
The usage is wrong
<?php define("GREETING","Hello world!",TRUE); echo constant("greeting"); ?>
Replace line 17 with it, try
if(empty(constant('USER_ID')))
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I feel there are 2 errors. I don’t know if they are correct or not. Please refer to them.
Error 1 The parent class is not initialized during initialization parnet::_initialize()
Error 2 empty and is_null are two concepts. Can an empty data be converted into flase? One is a null value
The usage is wrong
<?php define("GREETING","Hello world!",TRUE); echo constant("greeting"); ?>Replace line 17 with it, try
if(empty(constant('USER_ID')))