Why is it recommended to minimize context switches in PHP code?

Minimizing context switches in PHP code is recommended because each context switch adds overhead to the execution of the code, potentially slowing down the performance of the application. To reduce context switches, it is best to avoid unnecessary function calls, loops, and include statements within the code.

// Example of minimizing context switches in PHP code

// Bad practice with unnecessary context switches
function add($a, $b) {
    return $a + $b;
}

$result = add(3, 4);

// Good practice with minimized context switches
$result = 3 + 4;