Can I use $++ PHP in a foreach loop to increment the 'as' index?

Question

If I wanted to create a foreach loop that would add every second player to team A or team B

foreach ( $selectedplayers as $selectedplayer ) {
        TeamA[] = $selectedplayer;
        $selectedplayer++;
        TeamB[] = $selectedplayer; 
}

I know I can do it with a for loop but was interested to see if it could be done this way.

There's no increment in a foreach loop because it steps through every item in the array — clearshot66, Mar 07 '17 at 18:24
no you can't. check this out (the iterator method) http://stackoverflow.com/questions/20479610/php-array-get-next-key-value-in-foreach — Souhail Ben Slimene, Mar 07 '17 at 18:33
foreach is used to iterrate through all elements in array, for your case use for or check $key % 2 == 0 — Profesor08, Mar 07 '17 at 18:36

AbraCadaver · Accepted Answer · 2017-03-07T18:32:59.390

5

No. $selectedplayer is the actual value of each element. Either use your own counter:

$i = 0;
foreach ( $selectedplayers as $selectedplayer ) {
        if($i % 2 === 0)) {
            $TeamA[] = $selectedplayer;
        } else {
            $TeamB[] = $selectedplayer; 
        }
        $i++;
}

Or use the $key of the array if the keys are sequential (or at least odd, even pattern):

foreach ( $selectedplayers as $key => $selectedplayer ) {
        if($key % 2 === 0)) {
            $TeamA[] = $selectedplayer;
        } else {
            $TeamB[] = $selectedplayer; 
        }
}

edited Mar 07 '17 at 18:32

answered Mar 07 '17 at 18:27

AbraCadaver

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Thanks for this. I hadn't thought about the if statement option. – denski Mar 07 '17 at 21:33

Can I use $++ PHP in a foreach loop to increment the 'as' index?

1 Answers1