Remove elements from array

Question

For example I have array:

$arr = array('a', 'b', 'c', 'd', 'e', 'f');

How can I remove ('a', 'b', 'c') from the array?

Glass Robot · Accepted Answer · 2011-07-25 22:43:29Z

6

Unset will remove them:

unset($arr[0], $arr[1], $arr[2]);

And there is array_slice:

array_slice($arr, 3);

Returns:

array('d', 'e', 'f')

answered Jul 25, 2011 at 22:43

Glass Robot

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Comments

Explosion Pills · Accepted Answer · 2011-07-25 22:45:50Z

4

There are several ways to do this. The optimal really depends on your input.

If you have an array of the values you need to remove, which is probably your case, this will work best:

$arr = array('a', 'b', 'c', 'd', 'e', 'f');
$bad = array('a', 'b', 'c');

$good = array_diff($arr, $bad); //returns array('d', 'e', 'f');

answered Jul 25, 2011 at 22:45

Explosion Pills

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Paul · Accepted Answer · 2011-07-25 22:47:33Z

1

$arr = array('a', 'b', 'c', 'd', 'e', 'f');
$remove = array('a', 'b', 'c');
$arr = array_diff($arr, $remove);

answered Jul 25, 2011 at 22:47

Paul

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