foreach variable equal to another variable - php

Question

I want to foreach $key equal to $values to return the $called that matches the $key.
foreach($value as $values);
foreach($json['values'] as $key => $called) {
if($key == $values) {
$myreturns[] = $called;
}
}
return json_encode($myreturns, true);
I have a select multiple which value is a number and if not a number on registration it fails (to stop people changing values).
I populate it with the following json
{
"values": {
"1": "Black",
"2": "Blue",
"3": "Brown",
"4": "Grey",
"5": "Green",
"6": "Hazel",
"7": "Violet"
}
}
if somebody chose black and blue, the values will be 1 and 2.
For example I want foreach $key so the json above if that number is equal to "1" to return the $called that is related to the $key.
I know this is wrong but I want something like this
foreach($key == $values) {
$myreturns[] = $called;
}

Answer 1

Close. use array_push to push the results into a new array, then json encode that.
// json decode into associative array
$values = json_decode($json, true);
// init results
$results = array();
foreach($values as $key => $value) {
if($called == $key) {
array_push($results,$value);
}
}
$result = json_encode($result);
return $result;
Also note that if you want to get an item within a json array, it is easier to just reference it within the array:
$array = json_decode($json,true);
$item = $array[$key];