How to Remove Empty Array Elements and reindex in PHP Example?

Posted 7 years ago By Ajay Gupta 53623

In this post, I will tell you how to remove empty values from array in PHP by using array_filter function.

array_filter function remove all elements from given array that are equal to boolean false and emtpy string always return boolean false.

So question is it that 0 is also return boolean false then array_filter will remove 0 too then how will you keep it in array ?

Example 1: array_filter() function

$my_array = array(0, "ExpertPHP", "","Demo");
$resultDirect = array_filter($my_array);
print_r($resultDirect);

$my_array = array(0, "ExpertPHP", "","Demo");
$resultDirect = array_filter($my_array);
print_r($resultDirect);

Output :

Array
(
    [1] => ExpertPHP
    [3] => Demo
)

Array
(
    [1] => ExpertPHP
    [3] => Demo
)

Example 2: array_diff() function

$my_array = array(0, "ExpertPHP", "","Demo");
echo "";
print_r( array_diff( $my_array, array( '' ) ) );

$my_array = array(0, "ExpertPHP", "","Demo");
echo "";
print_r( array_diff( $my_array, array( '' ) ) );

Output:

Array
(
    [0] => 0
    [1] => ExpertPHP
    [3] => Demo
)

Array
(
    [0] => 0
    [1] => ExpertPHP
    [3] => Demo
)

array_diff() function return all the element of first array except element that present in second array.

You can remove empty value and then reindex array elements too.

$my_array = array(0, "ExpertPHP", "","Demo");
$resultDirect = array_values(array_filter($my_array));
echo "<pre>";
print_r($resultDirect);

$my_array = array(0, "ExpertPHP", "","Demo");
$resultDirect = array_values(array_filter($my_array));
echo "<pre>";
print_r($resultDirect);

Output:

Array
(
    [0] => ExpertPHP
    [1] => Demo
)

Array
(
    [0] => ExpertPHP
    [1] => Demo
)

How to Remove Empty Array Elements and reindex in PHP Example?

How to Remove Empty Array Elements and reindex in PHP Example?

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