I have an array like so:
[5, 2, 9]
However, I need this array:
[0 => 5, 1 => 2, 2 => 9]
So I need the index as key. Is there a function to achieve this? Now I create an empty array manually and I use array_push through a foreach loop. It works, however this doesn't seem elegant.
Is there a better solution?
$array = [5, 2, 9];
print_r($array);
outputs:
Array
(
[0] => 5
[1] => 2
[2] => 9
)
if you print array in loop you can see default key
$arr=[5, 2, 9];
foreach($arr as $key=>$val){
echo 'Key='.$key.','.'val='.$val.'<br/>';
}
OUTPUT
Key=0,val=5
Key=1,val=2
Key=2,val=9
Also if you echo using key like
$arr=[5, 2, 9];
echo $arr[1];
output
2
Use array_combine,
At first, create an array of values,
$values = array(5, 2, 9);
Now, create an array of keys,
$keys = array(0, 1, 2);
After that, Combine two array to get result,
$result = array_combine ( array $keys , array $values );
Your array already has the keys based off its position in the array
$test = [5, 2, 9];
print_r($test);
Array ( [0] => 5 [1] => 2 [3] => 9 )
echo $test[0]; = 5
echo $test[1]; = 2
echo $test[3]; = 9
