Make array same length as other array?

Question

I have 2 arrays:

$array1 = array(1 => '12', 2 => '4', 3 => '54');
$array2 = array(1 => '12', 2 => '4', 3 => '54', 4 => '124');

How would I go about making $array2 have the same number of keys as $array1, and removing any at the end.

So, I would end up with:

$array2 = array(1 => '12', 2 => '4', 3 => '54');

Being aware that the first array may contain a different number of keys.

alexn · Accepted Answer · 2013-04-21 09:55:15Z

8

Use array_slice:

$array2 = array_slice($array2, 0, count($array1), true);

answered Apr 21, 2013 at 9:55

alexn

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1 Comment

Liam W Over a year ago

Thanks! I tried to use array_slice, but I couldn't get it to work (I had the count as the second option, and no 0). Thanks! (I'll accept in 9 minutes).

din din · Accepted Answer · 2013-04-21 10:01:28Z

-1

you can also yuse array_pop it removes the last element from the array

array_pop

answered Apr 21, 2013 at 10:01

din din

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2 Comments

Liam W Over a year ago

That isn't of any use to me - I made need to remove more than one entry.

Camwyn Over a year ago

It's not as elegant but you can do it in a while: while( count( $array1) < count $array2 ) { array_pop( $array1); }

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