Im looking for a way to remove empty elements from an array. Im aware of array_filter() which removes all empty values.
The thing is that i consider a string containing nothing but spaces, tabs and newlines also to be empty.
So what is best used in this case?
Use trim() in callback for array_filter:
$array = array_filter($array, function ($v) { return (bool)trim($v); });
Or shorter version (with implicit type-casting):
$array = array_filter($array, 'trim');
bool empty ( mixed $var )
Determine whether a variable is considered to be empty. A variable is considered empty if it does not exist or if its value equals FALSE. empty() does not generate a warning if the variable does not exist.
Something like should do:
foreach($array as $key => $stuff)
{
if(empty(stuff))
{
unset($array[$key]);
}
}
$array = array_values($array );// to reinstate the numerical indexes.
I know this may be late to answer but it is for those who may have interest in other ways to solve this. It is my own way of doing it.
function my_array_filter($my_array)
{
$final_array = array();
foreach ( $my_array as $my_arr )
{
//check if array element is not empty
if (!empty($my_arr)) $final_array[] = $my_arr;
}
//remove duplicate elements
return array_unique( $final_array );
}
Hope someone finds this useful.
array_filter($array, function ($v) { return (bool)trim($v); });