Try this:
function mul(&$value){
$value = $value * 2;
}
$arr = array("a" => "1", "b" => "2", "c" => "3", "d" => "4");
array_walk($arr, 'mul');
var_dump($arr);
Best regards,
Shiqi Yang
-----Original Message-----
From: Dotan Cohen [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 05, 2005 1:40 PM
To: PHP Lists
Subject: [PHP] foreach in php4
I am on php 4.x. I see that in php5 I can do this (not the & before $value):
$arr = array(1, 2, 3, 4);
foreach ($arr as &$value) {
$value = $value * 2;
}
// $arr is now array(2, 4, 6, 8)
In order to create the same effect, I have been doing this:
$pre_arr = array(1, 2, 3, 4);
$arr = array();
foreach ($pre_arr as &$value) {
$arr[] = $value * 2;
}
// $arr is now array(2, 4, 6, 8)
Is there a better way? Thanks.
Dotan Cohen
http://lyricslist.com/lyrics/artist_albums/327/martin_ricky.php
Martin, Ricky Song Lyrics
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