Multiple random images per page, without repeat

Question

So, I need to display 2 or 3 different images in a website, as simple parallax dividers for content.

I have an array of 4 images, so I\'ll be able to randomize without r

Answer 1

Not sure is that you want but this will give you randomized images (without repeat) on a page, every time different ones:

<?php
    $img = array('img1.png', 'img2.png', 'img3.png', 'img4.png', 'img5.png', 'img6.png');
    shuffle($img);
    for($i=0; $i<3; $i++){
        print '<img src="'.$img[$i].'"><br>';
    }
?>        

If you want to receive one image per call, one of the possible solutions is to use session:

image.php:

<?php
    session_start();
    function getImage() {
        $img = array('img1.png', 'img2.png', 'img3.png', 'img4.png', 'img5.png');
        shuffle($img);
        foreach($img as $key => $val) {
            if (!is_array($_SESSION['img'])) {
                return $val;
            } elseif (count($_SESSION['img']) >= count($img)) {
                $_SESSION['img'] = array();
            }
            if (is_array($_SESSION['img']) && !in_array($val, $_SESSION['img'])) {
                return $val;
            }
        }
    }
?>

page.php:

<?php
    include 'image.php';
    for ($i = 0; $i < 3; $i++) {
        $currImg = getImage();
        $_SESSION['img'][] = $currImg;
        echo $currImg . '<br>';
    }
?>

All displayed images are stored into SESSION variable. When all images are displayed, this SESSION var is reset and will start a new cycle.