生成所有元素组合

Question

i have to generate all combinations of elements by unique value and in an orderly manner. I explain with an example, these are the parameters and their values :

Dog : mal | female
Color : red | blue | yellow

the all combinations (ordered) to get are :
male - red
male - blue
male - yellow
female - red
female - blue
female - yellow

How can i do it in php using arrays ?

Thanks in advance

Answer 1

$dogs = array( 'male', 'female');
$colors = array( 'red', 'blue', 'yellow');

foreach( $dogs as $dog)
    foreach( $colors as $color)
        echo $dog . ' - ' . $color . "
";

Output:

male - red
male - blue
male - yellow
female - red
female - blue
female - yellow

Demo