Which version of php added anonymous functions

Question

In manual there is create_function function and you can pass result from that function to array_map, I thought that that is the only way to have something like anonymous functions and closures, but then I found that I can just put function like in javascript

array_map(function($a) {
    return $a + 1;
}, array(1, 2, 3, 4, 5));

In which version of php I can do this? Was this always there?

I just RTFM but still was not pretty sure, so this question clarified — FrancescoMM, Jun 28 '13 at 09:44

score 22 · Accepted Answer · edited Jan 24 '22 at 02:49

22

Closures (anonymous functions) were added in PHP 5.3.0, including the use clause.

Then since PHP 5.4.0 the static keyword is supported in front of it to denote a static function.

And as of PHP 7.4.0 arrow functions (RFC) as a more concise syntax.

edited Jan 24 '22 at 02:49

hakre

184,866
48
414
792

answered Feb 05 '12 at 11:31

Mark Baker

205,174
31
336
380

Thanks, I have seen that page but I didn't notice the version number. – jcubic Feb 05 '12 at 11:43
In the "Changelog" section of the page, after the examples – Mark Baker Feb 05 '12 at 11:55
Yes I found it, I just explain why I didn't notice it before I read your answer. – jcubic Feb 05 '12 at 12:01
1

The changelog no longer shows when they were added. – mbomb007 Dec 09 '20 at 15:15

knittl · Answer 2 · 2012-02-05T11:47:34.340

5

Anonymous functions are available since PHP 5.3:

The key features of PHP 5.3.0 include:

…

Lambda Functions and Closures

…

edited Feb 05 '12 at 11:47

answered Feb 05 '12 at 11:31

knittl

216,605
51
293
340

score 1 · Answer 3 · answered Feb 05 '12 at 11:31

1

PHP >5.3:

http://php.net/manual/en/functions.anonymous.php

answered Feb 05 '12 at 11:31

Daan

3,343
22
19

1

You said php > 5.3 but according to documentation it is >= 5.3 . – sudip Mar 02 '16 at 20:07

Which version of php added anonymous functions

3 Answers3

Linked