PHP | restore_error_handler() Function

Hello folks! welcome back to a new section of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP restore_error_handler() Function.

The restore_error_handler() function is used after changing the error handler function by using set_error_handler() function, to revert the previous error handler (which could the built-in or user a user defined function).

Syntax

Following below is the syntax to use this function -

bool restore_error_handler ( void );

READ: PHP | error_reporting() Function

Parameter Details

Sr.No	Parameter & Description
1	void NA.

Return Value

It always returns TRUE.

Example

Try out the below example -

<?php
   function unserialize_handler($errno, $errstr) {
      echo "Invalid hello value.\n";
   }
   
   $hello = 'abc';
   set_error_handler('unserialize_handler');
   
   $original = unserialize($hello);
   restore_error_handler();
?> 

Output

When the above code is executed, it will produce the following result -

Invalid hello value.

READ: PHP | debug_backtrace() Function

Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the restore_exception_handler() Function

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