Calculate the highest duplicate integers of two associative arrays

Question

Given 2 associative arrays:

$fruits  = array ( \"d\" => \"lemon\", \"a\" => \"orange\", \"b\" => \"banana\", \"c\" => \"apple\" );
$fruits2 = array          


        

Answer 1

You don't need the ternary operator.
Also, be careful with count() as it will fail if your array is null.
They also need to be equal lengths or you'll get an error.

if( is_array($value1)  && is_array($value2) && count($value1)==count($value2) ) {
    for ( $i = 0; $i < count($value1); $i++)
    {
        $test[] = ($value1[$i] == $value2[$i]);
    }
}