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PHP

Doug Tr
Doug Tr
140 Points
Posted by Doug Tr
Doug Tr
140 Points

variable function vs named function?

Can someone please explain to me what is the purpose of using 2 (variable function) over 1 (named function)?

1.
function add ($a, $b) {
         return $a + $b;
}
add();

2.
 function something ($a, $b) {
         return $a + $b;
}
$add = 'something';
$add();

1 Answer

Nathan Heffley
Nathan Heffley
19,878 Points
Nathan Heffley
Nathan Heffley
19,878 Points

The purpose of variable functions like 2 is to add flexibility. In your example there isn't really a reason.

function example_1() {
    echo "One";
}

function example_2() {
    echo "Two";
}

function example_3() {
    echo "Three";
}

$counter = 1;
while ($counter < 4) {
    $function = "example_" . $counter;
    $function();
    $counter += 1;
}

In this example the code will first run example_1() and then example_2() and then example_3().

It just gives flexibility.