- print_r: documentation ( source)
- in_array: documentation ( source)
<?php
$array1 = array(2,2,3,5,7);
$array2 = array(2,3,5,23);
foreach($array1 as $value)
{
if (in_array($value,$array2) && !in_array($value,$output["greens"]))
{
$output["greens"][]=$value;
}
else
{
$output["reds"][]=$value;
}
}
print_r($output);