Getting unique values from 2 arrays
I have 2 arrays that I'm trying to get the unique values only from them. So I'm not just trying to remove duplicates, I'm actually trying to remove both duplicates.

So if I'm getting the 2 arrays like this:

    $array1 = array();
    $array2 = array();

    foreach($values1 as $value1){ //output: $array1 = 10, 15, 20, 25;
        $array1[] = $value1;
    }   

    foreach($values2 as $value2){ //output: $array2 = 10, 15, 100, 150;
        $array2[] = $value2;
    }

The final output I'm looking for is 

    $output = 20, 25, 100, 150;

Any neat way to getting this done?
Getting unique values from 2 arrays
===

I have 2 arrays that I'm trying to get the unique values only from them. So I'm not just trying to remove duplicates, I'm actually trying to remove both duplicates.

So if I'm getting the 2 arrays like this:

    $array1 = array();
    $array2 = array();

    foreach($values1 as $value1){ //output: $array1 = 10, 15, 20, 25;
        $array1[] = $value1;
    }   

    foreach($values2 as $value2){ //output: $array2 = 10, 15, 100, 150;
        $array2[] = $value2;
    }

The final output I'm looking for is 

    $output = 20, 25, 100, 150;

Any neat way to getting this done?