Pick highest number

[EchoFool]

Hey,

 

I have an array which stores a bunch of numbers lets say:

[0] = 1[1] = 6

 

Now a second array has:

[0] = 5 [1] = 6

 

What im trying to do - is find the first highest number from the second array that is not found in the first array.Both arrays are sorted already by the way using sort().

 

What is the best way to do this?

 

[Andy-H]

$array  = array( 1, 6 );
$array2 = array( 5, 6 );

$diff   = array_diff($array2, $array);
sort($diff, SORT_NUMERIC);
echo 'Highest unique array value in $array2: ' . $diff[count($diff) - 1];

 

array_diff

[EchoFool]

Thanks will play around with it and see what i get!

[Maq]

$array  = array( 1, 6 );
$array2 = array( 5, 6 );

$diff   = array_diff($array2, $array);
sort($diff, SORT_NUMERIC);
echo 'Highest unique array value in $array2: ' . $diff[count($diff) - 1];

 

array_diff

 

Was going to reply pretty much the same but you can also use max rather than sorting.

[Psycho]

Was going to reply pretty much the same but you can also use max rather than sorting.

 

Exactly. You can reduce the code down to a single line as follows:

$array1  = array( 1, 6 );
$array2 = array( 5, 6 );

echo 'Highest unique array value in $array2: ' . max(array_diff($array2, $array1));

[Andy-H]

lol fair play, haven't used max in a long time. Forgot it existed.