PHP : Replacing keys with incremental integer - php

Question

I have this stdClass Object
Array (
[0] => stdClass Object ( [criteria1] => 1 [criteria2] => 2 [criteria3] => 2 )
[1] => stdClass Object ( [criteria1] => 2 [criteria2] => 1 [criteria3] => 1 )
[2] => stdClass Object ( [criteria1] => 1 [criteria2] => 1 [criteria3] => 1 )
)
I want to replace the keys into an integer like below
Array (
[0] => stdClass Object ( [0] => 1 [1] => 2 [2] => 2 )
[1] => stdClass Object ( [0] => 2 [1] => 1 [2] => 1 )
[2] => stdClass Object ( [0] => 1 [1] => 1 [2] => 1 )
)
Then I add this function, $arr is for the array of object, $len is for the number of columns of the array
function replace_key($arr,$len) {
$temp_array = array();
foreach ($arr as $key => $val) {
$object = new stdClass();
$x = (array) $val;
foreach ($x as $key2 => $value) {
for ($i=0; $i < $len; $i++) {
$new_key = $i;
$object->$new_key = $value;
}
}
$temp_array[] = $object;
}
return $temp_array;
}
But it resulted this output (the keys are already like how I want but the values are all wrong)
Array (
[0] => stdClass Object ( [0] => 2 [1] => 2 [2] => 2 )
[1] => stdClass Object ( [0] => 1 [1] => 1 [2] => 1 )
[2] => stdClass Object ( [0] => 1 [1] => 1 [2] => 1 )
)
I have no idea what part I did it wrong, I already tried to fix it for several hours but nothing seemed to workout and that function code is far the best I could do. Please help me, I'm so stucked.

Answer 1

Try this code
<?php
$a = (object)array("criteria1"=>1,"criteria2"=>2,"criteria3"=>2);
$b = (object)array("criteria1"=>2,"criteria2"=>1,"criteria3"=>1);
$c = (object)array("criteria1"=>1,"criteria2"=>1,"criteria3"=>1);
$test = array($a, $b,$c);
function replace_key($arr) {
foreach ($arr as $key => $val) {
$object =array();
$object =array_values((array)$val);
$temp_array[] = (object)$object;
}
return $temp_array;
}
print_r(replace_key($test));
?>
working code

Answer 2

function replace_key($arr, $len = null)
{
$results = [];
foreach ($arr as $ar) {
$array = array_values((array)$ar);
$results[] = (object)array_slice($array, 0, $len);
}
return $results;
}