Remove empty array elements

Question

Some elements in my array are empty strings based on what the user has submitted. I need to remove those elements. I have this:

foreach($linksArray as $link)         


        

Answer 1

I think array_walk is much more suitable here

$linksArray = array('name', '        ', '  342', '0', 0.0, null, '', false);

array_walk($linksArray, function(&$v, $k) use (&$linksArray){
    $v = trim($v);
    if ($v == '')
        unset($linksArray[$k]);
});
print_r($linksArray);

Output:

Array
(
    [0] => name
    [2] => 342
    [3] => 0
    [4] => 0
)

• We made sure that empty values are removed even if the user adds more than one space

• We also trimmed empty spaces from the valid values

• Finally, only (null), (Boolean False) and ('') will be considered empty strings

As for False it's ok to remove it, because AFAIK the user can't submit boolean values.