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Remove empty array value ?

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Jul 08.2008

Hey guys,

I’m being really blond here …. (I am blond so I’m allowed to say that :p )

I have this array:

[code]
Array
(
[z] => tabular
[phone1] => n96
[phone2] => 6210-navigator
[phone3] => 6600-fold
[phone4] =>
[phone5] =>
[phone6] =>
)
[/code]

I want to be able to delete the null/empty values/keys from the array.
There has got to be a simple way to do that surely?

It’s important that I keep the same keys to the same values. All the ways I’ve thought of so far involve re-indexing the array.

Any ideas? Just simply want to remove any keys/values that have an empty or null value.

Thanks v. much!! ?

to post a comment
PHP

4 Comments(s) ↴

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@legendxJul 08.2008 — I think array_filter() does this.. although the value would have to be NULL, not empty.

EDIT: just kidding... empty values are also cleared out.

FROM php.net on array_filter

[code=php]
<?php

$entry = array(
0 => 'foo',
1 => false,
2 => -1,
3 => null,
4 => ''
);

print_r(array_filter($entry));
?>
[/code]

Outputs:
<i>
</i>Array
(
[0] =&gt; foo
[2] =&gt; -1
)
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@GavinPearceauthorJul 09.2008 — Yup that function works perfect.

Thank you :-)
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@wickedwallyAug 21.2009 — I have the same problem....empty values in the array. The function works perfectly when using print_r, but I don't want to print out the array, just the values...how do I filter the array and print out values only?

I tried using echo array_filter($myarray[1][$i]); and it doesn't work since its accessing the value in an array, not the array itself.
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@NogDogAug 21.2009 — One way:
[code=php]
echo implode("<br />n", array_filter($array));
[/code]
Another, somewhat more robust way:
[code=php]
<ul>
<?php
foreach(array_filter($array) as $value)
{
echo "<li>".htmlentities($value)."</li>n";
}
?>
</ul>
[/code]
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