up vote 4 down vote favorite
2

I am using the range() function to create an array. However, I want the keys to be the same as the value. This is ok when i do range(0, 10) as the index starts from 0, however if i do range(1, 11), the index will still start from 0, so it ends up 0=>1 when i want it to be 1=>1

How can I use range() to create an array where the key is the same as the value?

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Why not just not use the key at all? – Ignacio Vazquez-Abrams Mar 19 '11 at 5:22
im using a library i cannot modify that requires this >.< – Ozzy Mar 19 '11 at 6:07

5 Answers

up vote 21 down vote accepted

How about array_combine?

$b = array_combine(range(1,10), range(1,10));
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up vote 1 down vote

There is no out of the box solution for this. You will have to create the array yourself, like so:

$temp = array();
foreach(range(1, 11) as $n) {
   $temp[$n] = $n;
}

But, more importantly, why do you need this? You can just use the value itself?

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up vote 1 down vote

Or you did it this way:

$b = array_slice(range(0,10), 1, NULL, TRUE);

Find the output here: http://codepad.org/gx9QH7ES

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up vote 0 down vote 
<?php
function createArray($start, $end){
  $arr = array();
  foreach(range($start, $end) as $number){
    $arr[$number] = $number;
  }
  return $arr;
}

print_r(createArray(1, 10));
?>

See output here: http://codepad.org/Z4lFSyMy

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up vote 0 down vote 
<?php

$array = array();
foreach (range(1,11) as $r)
  $array[$r] = $r;

print_r($array);

?>
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