Built-in PHP function to reset the indexes of an array?

Question

Example:

$arr = array(1 => 'Foo', 5 => 'Bar', 6 => 'Foobar');
/*... do some function so $arr now equals:
    array(0 => 'Foo', 1 => 'Bar', 2 => 'Foobar');
*/

Answer 1

Use array_values($arr). That will return a regular array of all the values (indexed numerically).

PHP docs for array_values

Answer 2

array_values($arr);

Answer 3

Not that I know of, you might have already checked functions here

but I can imagine writing a simple function myself

resetarray($oldarray)
{
for(int $i=0;$i<$oldarray.count;$i++)
     $newarray.push(i,$oldarray[i])

return $newarray;
}

I am little edgy on syntax but I guess u got the idea.

Answer 4

To add to the other answers, array_values() will not preserve string keys. If your array has a mix of string keys and numeric keys (which is probably an indication of bad design, but may happen nonetheless), you can use a function like:

function reset_numeric_keys($array = array(), $recurse = false) {
    $returnArray = array();
    foreach($array as $key => $value) {
        if($recurse && is_array($value)) {
            $value = reset_numeric_keys($value, true);
        }
        if(gettype($key) == 'integer') {
            $returnArray[] = $value;
        } else {
            $returnArray[$key] = $value;
        }
    }

    return $returnArray;
}