foreach（）每4个变化输出

Question

I have an issue where I don't know for a foreach() loop to change the output on every(x) amount of results.

Here is my foreach() code:

$dir_handle = 'assets/icons/';
    foreach(array_diff(scandir($dir_handle), array('.', '..')) as $file) {
        $cut = substr($file, -4);
        echo '<a href="action.php?do=changeicon&set=' . $cut . '"><img id="preload_header" src="assets/icons/' . $file . '" /></a><br />';
}

How would I get it for that 1-4 have the same result, but then 5-8 have a different result, and then back to 1-4?

Answer 1

You want to do a count in your foreach loop

$count = 1;
foreach(array_diff(scandir($dir_handle), array('.', '..')) as $file) {
    //Check if count is between 1 and 4
    if($count >= 1 && $count <= 4) {

        //Do something

    } else { //Otherwise it must be between 5 and 8

        //Do something else

        //If we are at 8 go back to one otherwise just increase the count by 1
        if($count == 8) {
            $count = 1;
        } else {
            $count++;
        }
    }
}