Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to remove a function at runtime in PHP?
The functions and classes in PHP have global scope. This means they could be called outside a function even after they were defined inside the scope and the other way round.
But PHP doesn't support function overloading, and it is not possible to redefine previously-declared functions.
The function can be defined as an anonymous function and it can be unset after it completes its run.
Below is a code sample for the same −
if (function_exists('get_magic_quotes_gpc') && @get_magic_quotes_gpc())
$my_fn = create_function('&$v, $k', '$v = stripslashes($v);');
array_walk_recursive(array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST), $my_fn);
unset($my_fn);
}An anonymous function can't be called inside itself. The workaround is to use array_walk_recursive.
Updated on: 06-Apr-2020
455 Views
Advertisements