PHP compare two arrays and get the matched values not the difference

Simple, use array_intersect() instead:

$result = array_intersect($array1, $array2);

OK.. We needed to compare a dynamic number of product names...

There's probably a better way... but this works for me...

... because....Strings are just Arrays of characters.... :>}

//  Compare Strings ...  Return Matching Text and Differences with Product IDs...//  From MySql...$productID1 = 'abc123';$productName1 = "EcoPlus Premio Jet 600";   $productID2 = 'xyz789';$productName2 = "EcoPlus Premio Jet 800";   $ProductNames = array(    $productID1 => $productName1,    $productID2 => $productName2);function compareNames($ProductNames){       //  Convert NameStrings to Arrays...        foreach($ProductNames as $id => $product_name){        $Package1[$id] = explode(" ",$product_name);        }    // Get Matching Text...    $Matching = call_user_func_array('array_intersect', $Package1 );    $MatchingText = implode(" ",$Matching);    //  Get Different Text...    foreach($Package1 as $id => $product_name_chunks){        $Package2 = array($product_name_chunks,$Matching);        $diff = call_user_func_array('array_diff', $Package2 );        $DifferentText[$id] = trim(implode(" ", $diff));    }    $results[$MatchingText]  = $DifferentText;                  return $results;    }$Results =  compareNames($ProductNames);print_r($Results);// Gives us this...[EcoPlus Premio Jet]         [abc123] => 600        [xyz789] => 800

I think the better answer for this questions is

array_diff() 

because it Compares array against one or more other arrays and returns the values in array that are not present in any of the other arrays.

Whereas

array_intersect() returns an array containing all the values of array that are present in all the arguments. Note that keys are preserved.