Use PHP to flatten a multidimensional stdClass object (like a json_decode result)

squash.php

<?php

function squash($array, $prefix = '')
{
    $flat = array();
    $sep = ".";
    
    if (!is_array($array)) $array = (array)$array;
    
    foreach($array as $key => $value)
    {
        $_key = ltrim($prefix.$sep.$key, ".");
        
        if (is_array($value) || is_object($value))
        {
            // Iterate this one too
            $flat = array_merge($flat, squash($value, $_key));
        }
        else
        {
            $flat[$_key] = $value;
        }
    }
    
    return $flat;
}