Avoid if else structure when possible

switch-vs-if-else.php

<?php
global $i;
$i = 0;
function test()  {
    global $i;
    var_dump(++$i);
    return $i;
}

switch (test()) {
    case 'foo':
        var_dump('this is foo');
        break;
    case 'bar':
        var_dump('this is bar');
        break;
    case 'baz':
        var_dump('this is baz');
        break;
    default:
        var_dump('this is default');
        break;
}

$i = 0;
if ('foo' == test()) {
    var_dump('this is foo');
} else if ('bar' == test()) {
    var_dump('this is bar');
} else if ('baz' == test()) {
    var_dump('this is baz');
} else {
    var_dump('this is default');
}

/*
The above code will print.
Please avoid using if else structure or at least, store the result of the fuction before.
int(1)
string(15) "this is default"
int(1)
int(2)
int(3)
string(15) "this is default"
*/