Filtering arrays based on an object attribute

[laredotornado@zipmail.com]

Hi,

I have an array filled with a particular type of object, which
contains an attribute "m_level", of integer type. What I want is to
get a subset of the array whose "m_level" attribute is equal to zero.
Is there a short way I can do this other than iterating through a
foreach / for loop?

I'm using PHP 4.4.4.

Thanks, - Dave

[OmegaJunior]

Re: Filtering arrays based on an object attribute

On Tue, 27 Feb 2007 23:23:14 +0100, laredotornado@z ipmail.com
<laredotornado@ zipmail.comwrot e:

Hi,
>
I have an array filled with a particular type of object, which
contains an attribute "m_level", of integer type. What I want is to
get a subset of the array whose "m_level" attribute is equal to zero.
Is there a short way I can do this other than iterating through a
foreach / for loop?
>
I'm using PHP 4.4.4.
>
Thanks, - Dave
>

Did you try the array_filter() function?


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[Sjoerd]

Re: Filtering arrays based on an object attribute

laredotornado@z ipmail.com wrote:

Hi,
>
I have an array filled with a particular type of object, which
contains an attribute "m_level", of integer type. What I want is to
get a subset of the array whose "m_level" attribute is equal to zero.
Is there a short way I can do this other than iterating through a
foreach / for loop?
>
I'm using PHP 4.4.4.
>
Thanks, - Dave
>

function filter_particul ar_type($array) {
$result = array();
foreach ($array as $item) {
if ($item->m_level == 0) {
$result[] = $item;
}
}
return $result;
}

// or

function callback_filter ($item) {
return $item->m_level == 0;
}
array_filter($a rray, 'callback_filte r');