foreach array function storing in a variable?

Question

 $numbers = array('1','2');
 $numberlist = foreach($numbers as $number) {
      echo $number;
 }

As you can see what I'm trying to do it doesn't work is there any other way to store a foreach function as a variable?

is that $ in front of the echo a typo in the question? Because that will not work :) — Nanne
– Nanne, Commented Mar 18, 2011 at 17:15
I think Matthew is trying to store a procedure or function into a variable. But for starters you'll want to remove the $ in front of 'echo'. Then see the answers below — Mala
– Mala, Commented Mar 18, 2011 at 17:15

Drew Dello Stritto · Accepted Answer · 2011-12-28 00:08:45Z

5

$numberList = function( $input )
{
    foreach( $input as $v )
        echo $v;
};

$numberList( $numbers );

See PHP Anon

Note: Anonymous functions are available since PHP 5.3.0.

(The function should be $numberList with a capital L in order for it to work properly.)

edited Dec 28, 2011 at 0:08

Drew Dello Stritto

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answered Mar 18, 2011 at 17:11

Kevin Peno

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3 Comments

Naftali Over a year ago

this only works if you have the newest version of PHP (5.3.x)

Aaron Over a year ago

I'm using 5.3.5; I used the example you've given me and the variable seems not to be outputting?

Kevin Peno Over a year ago

@Matthew, I assume you passed in an array when you called the anon function (see last line of example)? Also, that array should contain strings or numbers only. Arrays, booleans, and nulls may print nothing :P

Matteo Riva · Accepted Answer · 2011-03-18 17:12:57Z

1

If you're trying to store a code reference to the foreach loop in the $numberlist variable, that can't be done: loops are not functions.

If you want an object you can cycle on, you need to build an interator. If this is the case, I suggest you take a look at Standard PHP Library.

answered Mar 18, 2011 at 17:12

Matteo Riva

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Comments

Mala · Accepted Answer · 2011-03-18 17:14:11Z

1

I think what Matthew is trying to do is store a function in a variable in PHP. I think this link is what you're looking for:

http://php.net/manual/en/functions.variable-functions.php

answered Mar 18, 2011 at 17:14

Mala

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