CODEWITHSUNDEEP
php
user3186555
user3186555

Reputation:

Detect if a string is a function in php?

I know that in php you can use variable functions like:

function some_func(){}
$name = "some_func";
$$name();

But, what I really want to know is if you can check if a function exists without executing it. That is not via:

if($name()){}

Upvotes: 2

Views: 48

Answers (1)

Alex Stacks
Alex Stacks

Reputation: 196

Use function_exists(). It will do exactly what you are asking for.

Here's how (from the PHP manual):

bool function_exists( string $name)

It will check the list of defined functions (both built-in and user-defined) for $name

NOTE: If you wish to check if a member function (method) exists use method_exists.

Find out more here

Upvotes: 5

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