How to re-index arrays?

Question

How to re-arrange:

Array (
     [0] => tomato
     [2] => apple
     [3] => melon
     [4] => Cherry
     [7] => banana 
)

To:

Array (
     [0] => tomato
     [1] => apple
     [2] => melon
     [3] => Cherry
     [4] => banana 
)

?

`sort()` will re-index your array, but also reorder / sort it, which means apple = 0, banana = 1 etc. — sascha, Feb 18 '13 at 13:43

score 9 · Accepted Answer · answered Feb 18 '13 at 13:43

9

Just try with array_values:

$newArray = array_values($oldArray);

answered Feb 18 '13 at 13:43

hsz

would `$oldArray = array_values($oldArray);` work? – Floris Feb 18 '13 at 13:45
Yes, it will. I have named result with `$newArray` to show how it works. – hsz Feb 18 '13 at 13:46

score 3 · Answer 2 · answered Feb 18 '13 at 13:43

3

How about this?

$new_array = array();
foreach($original_array as $val) { 
 $new_array[] = $val;
}

$new_array will have the right indexes.

answered Feb 18 '13 at 13:43

Deleteman

1

And if you then copy it back to the original array, you'll be all set! – Floris Feb 18 '13 at 13:43

score 0 · Answer 3 · answered Feb 18 '13 at 13:43

0

$arr2 = array();
foreach($arr1 as $a) {
  $arr2[] = $a;
}

Put the values into a new, fresh array?

answered Feb 18 '13 at 13:43

Brad Bonkoski

score 0 · Answer 4 · answered Feb 18 '13 at 13:46

0

Try this:

$a =  array(0 => 'tomato', 2 => 'apple', 3 => 'melon', 4 => 'Cherry', 7 => 'banana');
print_r($a);
$a = array_values($a);
print_r($a);

answered Feb 18 '13 at 13:46

Andy Gee

score -1 · Answer 5 · answered Feb 18 '13 at 13:50

-1

Just don't bother with re-indexing.
Use foreach to iterate it

answered Feb 18 '13 at 13:50

Your Common Sense

5 Answers5