how to remove NULL values in array PHP
<?php
$arr = array('1', '', '2', '3', '0');
// Incorrect:
print_r(array_filter($arr));
// Correct:
print_r(array_filter($arr, 'strlen'));
//Custom
print_r(array_filter($arr, function ($val) {if ($val > 0) {return true;} else {return false;}}));
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// One liner to remove empty ("" empty string) elements from your array.
// Note: This code deliberately keeps null, 0 and false elements.
$array = array_filter($array, function($a) {return $a !== "";});
// OR if you want to trim your array elements first:
// Note: This code also removes null and false elements.
$array = array_filter($array, function($a) {
return trim($a) !== "";
});
Thank you!
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