PHP Arrays – Removing Empty Values from an Array

arraysphp

How do I loop through this array and remove any empty values:

[28] => Array
    (
        [Ivory] => 
        [White] => 
    )

[29] => Array
    (
        [Ivory] => 
        [White] => 
    )

[30] => Array
    (
        [Ivory] => 
        [White] => 36
    )

[31] => Array
    (
        [White] => 24
    )

So say it'd remove 28, 29 and just Ivory from 30…

Thanks!

Best Answer

I see you already have a working solution, but just for fun, with array_map goodness:

$array = array_filter(array_map('array_filter', $array));

Related Solutions

PHP – How to Remove Empty Array Elements

As you're dealing with an array of strings, you can simply use array_filter(), which conveniently handles all this for you:

$linksArray = array_filter($linksArray);

Keep in mind that if no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed. So if you need to preserve elements that are i.e. exact string '0', you will need a custom callback:

// PHP 7.4 and later
print_r(array_filter($linksArray, fn($value) => !is_null($value) && $value !== ''));

// PHP 5.3 and later
print_r(array_filter($linksArray, function($value) { return !is_null($value) && $value !== ''; }));

// PHP < 5.3
print_r(array_filter($linksArray, create_function('$value', 'return $value !== "";')));

Note: If you need to reindex the array after removing the empty elements, use:

$linksArray = array_values(array_filter($linksArray));

php – PHP Remove “Empty” Values in Array

You can use the PHP function array_filter() to remove the empty values

<?php
$array = array("sampe1", "", "sample2", null, "sample4", "rajesh", "suresh", "test", "");
var_dump($array);
echo "<hr/>";
$result = array_filter($array);                 
var_dump($result);
?>

This will print out:

array(9) { [0]=> string(6) "sampe1" [1]=> string(0) "" [2]=> string(7) "sample2" [3]=> NULL [4]=> string(7) "sample4" [5]=> string(6) "rajesh" [6]=> string(6) "suresh" [7]=> string(4) "test" [8]=> string(0) "" }

array(6) { [0]=> string(6) "sampe1" [2]=> string(7) "sample2" [4]=> string(7) "sample4" [5]=> string(6) "rajesh" [6]=> string(6) "suresh" [7]=> string(4) "test"

Best Answer

Related Solutions

PHP – How to Remove Empty Array Elements

php – PHP Remove “Empty” Values in Array

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