How to randomize images from albums [duplicate] - php

Question

This question already has answers here:
Shuffle an array in PHP
(6 answers)
Closed 9 years ago.
I'm trying to make an image gallery. On the index file I want to show the albums with the images, see; http://www.robcnossen.nl/
I want to randomize the images that are inside these albums but I get all sorts of errors like:
warning: rand() expects parameter 1 to be long, string given in.
My code is;
foreach ($albums as $album) {
?><div><h2><?php
echo'',$album['name'], '';?> </h2><?php
echo'<img src="uploads/thumbs/', $album["id"], '/', $album["imagename"],'" title="" />';
?></div><?php
}
The $album["imagename"] are the images inside the albums and I want to randomize this part. I tried for example:
rand($album["imagename"], 0)
but that gives an error.
I also tried shuffle;
foreach ($albums as $album) {
shuffle($album["imagename"]);
?><div><h2><?php
echo'',$album['name'], '';?></h2><?php
echo'<img src="uploads/thumbs/', $album["id"], '/', $album["imagename"],'" title="" />';
?></div><?php
}
But also there I get only errors.
Can anybody help me with this?
var_dump($albums);
gives
array(2) {
[0]=> array(8) {
["id"]=> string(1) "8"
["timestamp"]=> string(10) "1373890251"
["name"]=> string(7) "Holland"
["description"]=> string(19) "Fantastische foto's"
["count"]=> string(1) "2"
["imagename"]=> string(38) "KONICA MINOLTA DIGITAL CAMERA_428.jpeg"
["image"]=> string(2) "63"
["ext"]=> string(0) ""
}
[1]=> array(8) {
["id"]=> string(1) "9"
["timestamp"]=> string(10) "1376914749"
["name"]=> string(6) "Belgie"
["description"]=> string(11) "Mooi Belgie"
["count"]=> string(1) "2"
["imagename"]=> string(12) "PICT0170.JPG"
["image"]=> string(2) "66"
["ext"]=> string(0) ""
}
}
as result.

Answer 1

shuffle should work for you, but not if you put it inside the foreach loop, like your example code. You need to shuffle before you start the loop. Also, shuffle needs to be called with the array itself, not an item of the array:
shuffle($albums);
foreach ($albums as $album) {
...
}

Answer 2

you should shuffle array out side the loop
<?php
shuffle($albums);
foreach ($albums as $album)
{
?><div><h2>
<?php
echo'',$album['name'], '';
?>
</h2>
<?php
echo'<img src="uploads/thumbs/', $album["id"], '/', $album["imagename"],'" title="" />';
?>
</div>
<?php
}