Passing reference to array in "foreach" produce error

[loutka]

Hi guys!

 

I'm trying to access array through foreach and change values for particular key.

 

I'm able to access array without reference, but when I add & to create reference I receive:

Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /home/.../modules/taxonomy_menu/taxonomy_menu.inc on line 185

 

My code:

<?php
foreach ($items as &$menu_item){    	
$menu_item['path'] = drupal_get_path_alias( 'taxonomy/term/' . end(explode('/',$menu_item['path'])) );				
  }
unset ($menu_item);
?>

 

Regarding to http://uk3.php.net/foreach this should work:

<?php
$arr = array(1, 2, 3, 4);
foreach ($arr as &$value) {
    $value = $value * 2;
}
// $arr is now array(2, 4, 6, 
unset($value); // break the reference with the last element
?>

 

I'm really confused and can't figure it out...  ???

 

Any way around? Can I access array value directly (from within fereach) and change it?

 

Could anyone help me please?

Thanks!

[kenrbnsn]

Using the "&" only works with PHP5. Which version of PHP are you running?

 

Ken

[F1Fan]

You could just do this:

 

<?php
$arr = array(1, 2, 3, 4);
foreach ($arr as $k=>$value) {
    $arr[$k] = $value * 2;
}
// $arr is now array(2, 4, 6, 
unset($value); // break the reference with the last element
?>

[loutka]

I know, sorry I didn't posted version staight away:

 

PHP version: 5.2.6

[loutka]

You could just do this:

 

<?php
$arr = array(1, 2, 3, 4);
foreach ($arr as $k=>$value) {
    $arr[$k] = $value * 2;
}
// $arr is now array(2, 4, 6, 
unset($value); // break the reference with the last element
?>

 

I'm using an array within an array and need to change all values with particular key ($menu_item['path']) in the inner array.

Does it make sense to you?

 

[F1Fan]

Sure. It will still work.

 

<?php
foreach ($items as $k=>$menu_item){    	
$items[$k]['path'] = drupal_get_path_alias( 'taxonomy/term/' . end(explode('/',$menu_item['path'])) );				
  }
unset ($menu_item);
?>

[discomatt]

Oops, mistake made. Let me re-read.

[discomatt]

Odd, use phpinfo() to verify it's executing with PHP5

 

<pre><?php

$array = array( 'foo', 'bar', 'hello', 'world' );

foreach( $array as &$val ) {
$val .= ' modified';
}
unset( $val );

print_r( $array );

?></pre>

 

Outputs

 

Array
(
    [0] => foo modified
    [1] => bar modified
    [2] => hello modified
    [3] => world modified
)

 

for me. PHP 5.2.6, Apache 2.2.8

[loutka]

Thank you all guys, really appreceate! It is working now...

 

Thank you kenrbnsn:

My fault, I've checked it just in cPanel

 

Thank you F1FAN:

Of course I used it this way many times... I think I had one of those days when you look in your code and nothing works

 

Thank you DISCOMATT:

phpinfo() => PHP Version 4.4.9

But hosting provider claims we have PHP 5.2.6 installed... Grrr!

 

 

 

[discomatt]

Read the support/FAQ pages. Some hosts require .htaccess directives or certain extensions to parse with PHP5 (.php5)