Delete empty members of an PHP array

Question

I have a array called $urls, I want to delete members with value null. I want first submit every member to a function that checks if a member is null, and then I delete the member from array. E.X.

$urls=array();
$url[0]=$_POST['urla'];
$url[1]=$_POST['urlb'];
$url[2]=$_POST['urlc'];
$url[3]=$_POST['urld'];
$url[4]=$_POST['urle'];

Well, I want to delete $urls members that has no value (because user didn't fill out the fields ), How can I do it? thank you for your help

Filtering seems unnecessary here, if you just need the values reindexed you can also do $url = array_values($_POST);. Note that null implies that values might not exist, so your current code will generate warnings for every non-existing element. Also note that you can use arrays in html which would probably make all this redundant. — jeroen
– jeroen, Commented Jun 22, 2016 at 7:44

Manikiran · Accepted Answer · 2016-06-22 07:43:06Z

2

Simply use array_filter(), which conveniently handles this for you:

<?php
print_r(array_filter($urls));
?>

answered Jun 22, 2016 at 7:43

Manikiran

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Death-is-the-real-truth · Accepted Answer · 2016-06-22 07:52:06Z

1

You can do it in below mentioned ways:-

1.array_filter():-

<?php
 array_filter($_POST);
 $urls = $_POST;
 print_r($urls);
?>

2.Use array_values():-

<?php
   $urls = array_values($_POST);
   print_r($urls);
?>

Reference:-

http://php.net/manual/en/function.array-filter.php

http://php.net/manual/en/function.array-values.php

edited Jun 22, 2016 at 7:52

answered Jun 22, 2016 at 7:46

Death-is-the-real-truth

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Death-is-the-real-truth · Accepted Answer · 2016-06-22 10:05:52Z

1

<?php  
$urls = array_filter($url);
?>

edited Jun 22, 2016 at 10:05

Death-is-the-real-truth

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answered Jun 22, 2016 at 7:46

Aman Srivastava

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Comments

subbu · Accepted Answer · 2016-06-22 07:49:59Z

0

Please check the request post members like following

if(isset($_POST['urla']) && $_POST['urla'] != '') 
{
    $url[0]=$_POST['urla'];
}

if not working please send me more inputs.

answered Jun 22, 2016 at 7:49

subbu

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1 Comment

Andrew Over a year ago

Question is about using custom function to check if array item is empty. Where is it in your answer?

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