foreach - Array

[iavian]

hi

i want to modify an array in foreach loop

foreach($array as $ele){
$ele = $some_random_st ring;
}

i should see here the modified $array .

thnaks in advance

[David Haynes]

Re: foreach - Array

iavian wrote:[color=blue]
> hi
>
> i want to modify an array in foreach loop
>
> foreach($array as $ele){
> $ele = $some_random_st ring;
> }
>
> i should see here the modified $array .
>
> thnaks in advance
>[/color]
foreach( $array as &$ele ) {
$ele = $some_random_st ring;
}

should work as you want it to.

-david-

[Adam Plocher]

Re: foreach - Array

foreach ($array as $key=>$val)
{
$arrayOut[$key] = $some_random_st ring;
}

$array = $arrayOut;

that should work (not tested).

[Alan Little]

Re: foreach - Array

Carved in mystic runes upon the very living rock, the last words of David
Haynes of comp.lang.php make plain:
[color=blue]
> iavian wrote:[color=green]
>> hi
>>
>> i want to modify an array in foreach loop
>>
>> foreach($array as $ele){
>> $ele = $some_random_st ring;
>> }
>>
>> i should see here the modified $array .
>>
>> thnaks in advance
>>[/color]
> foreach( $array as &$ele ) {
> $ele = $some_random_st ring;
> }
>
> should work as you want it to.[/color]

Only in PHP5.

http://us3.php.net/manual/en/control-structures.foreach.php

"Unless the array is referenced, foreach operates on a copy of the
specified array and not the array itself....As of PHP 5, you can easily
modify array's elements by preceding $value with &. This will assign
reference instead of copying the value."

--
Alan Little
Phorm PHP Form Processor

http://www.phorm.com/

[Marcin Dobrucki]

Re: foreach - Array

iavian wrote:
[color=blue]
> i want to modify an array in foreach loop
>
> foreach($array as $ele){
> $ele = $some_random_st ring;
> }
>
> i should see here the modified $array .[/color]

Alternatively, you could use the array_walk() or
array_walk_recu rssive() functions, which will give you some more
flexibility.

[Colin McKinnon]

Re: foreach - Array

Adam Plocher wrote:
[color=blue]
> foreach ($array as $key=>$val)
> {
> $arrayOut[$key] = $some_random_st ring;
> }
>
> $array = $arrayOut;
>
> that should work (not tested).[/color]

but:

foreach ($array as $key => $val) {
$array[$key] = $some_random_st ring;
}

is cleaner.

C.

[R. Rajesh Jeba Anbiah]

Re: foreach - Array

Colin McKinnon wrote:
<snip>[color=blue]
> foreach ($array as $key => $val) {
> $array[$key] = $some_random_st ring;
> }
>
> is cleaner.[/color]

When you have to modify the array element, use of foreach is
discouraged because of overhead
<http://www.phparch.com/cert/ZPCPB_sample.pd f>

--
<?php echo 'Just another PHP saint'; ?>
Email: rrjanbiah-at-Y!com Blog: http://rajeshanbiah.blogspot.com/