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

$my = ("0"=>" ","1"=>"5","2"=>"6","3"=>" ");   

foreach ($my as $key => $value) {
    if (is_null($value)) unset($my[$key]);
}

foreach ($my as $key => $value) {
    echo   $key . ':' . $value . '
';
} 

output

1:5

2:6