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Undefined index: wc_order_id

I want to export data to excel in CI. But i have issue Undefined index: wc_order_id If I print_r(array_values($data)); exit; the value is correct, only I cannot export to Excel. This my …

Make a variable available in all controllers

I am not sure the title of the question is clear, so I will try to explain it in details. I want to execute a piece of code in every controller automatically, assign the result to a variable that …

class does not have a method ‘urldecode’

In PHP how can I use the urldecode() inside a class. I have the following class because it showing the error Warning: array_walk_recursive() expects parameter 2 to be a valid callback, class ‘exam’ does not have a method ‘urldecode’ on line 7 Answer You are passing the current object $…

PHP function working differently for return and echo. Why?

By using the following class: and Calling the function, by the following code, it works fine. But if in the SafeGuardInput class if I replace echo $finaloutput; with return $finaloutput; and then echo $forminput; on the index.php page. It DOES NOT WORK. Please provide a solution. Answer You can’t return…