Array help

greg252

I have an array
x[0]->Help
x[1]->
x[2]->
x[3]->Me

Problem is, the number of blank entries are not always the same.
What can I do to remove all blank entries in the array so I get

x[0]->Help
x[1]->Me

Thanks in advance.

herve

Hi,

use the array_filter() function.

More info here :

http://www.php.net/manual/en/function.array-filter.php

Hervé.

barand

Herve,

The manual entry for array_filter states that you cannot delete or add with the function

More info here 😉

[man]array_filter[/man]

I suppose you could sort the array and pop the blanks off the end.

intenz

Try...

Function

function array_empty($array)
{
        for($i = 0; $i < count($array); $i++)
        {
                if($array[$i] != '')
                        $temparray[] = $array[$i];
        }
        return $temparray;
}

Usage

$x = array('Help','','','me');
print_r(array_empty($x)); // This line is just for testing purpose

Weedpacket

If they're really empty (i.e., unset), and since you're describing an indexed array...

$array=array_values($array);

And, funnily enough (documentation notwithstanding), it seems you can delete items inside an array_filter callback:

<?php
$x = array('Help','','','me');

function kill_blanks($r)
{	return ($r=='') ? null : $r;
}

$x = array_filter($x,'kill_blanks');
$x = array_values($x);
print_r($x);
?>

Feel free to comment out either or both array_* functions to see their effects.

Does this qualify as a neat hack?