How to remove empty array in php

How to remove empty arrays in php

In php, you can remove empty arrays by using "array_filter()". The function of this function is Use the callback function to filter the units in the array. The function syntax is "array_filter($array,$callback,$flag)". When using it, you only need to pass the array into the first parameter.

Sample code:

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

print_r(array_filter($entry));

Output result:

Array
(
    [0] => foo
    [2] => -1
)

Recommended tutorial: "PHP Tutorial"

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