display images with same key in PHP? - php

Question

I'm trying to display all the images with the same key from a folder.
the images are stored like so:
34526Image1.jpg
34526Image2.jpg
34526Image3.jpg
34526Image4.jpg
etc etc....
so the key is the first part of the image name (the random numbers) which in this case is 34526.
I've tried to use glob() function in PHP but I only get the first image which is 34526Image1.jpg.
my glob() code is this:
<?php
foreach(glob('../my-images/') as $image)
$i = 1;
{
$pic_list .= '<a id="example1" href="'.$image.''.$randKey.'Image'.$i++.'.jpg"><img alt="example1" src="../my-images/'.$randKey.'Image'.$i++.'.jpg" /></a>';
}
echo $pic_list ;
?>
could someone please advise on this?

Answer 1

Your call to glob contains no pattern. You can use wildcards for no or many characters with *, or for single characters using ?. Also ranges like for example [0-9] are possible. In your case you want everything that starts with a random number, determinted by $randKey, followed by the word Image, a counter value and .jpg. So all you have to do is to use a wildcard for the counter value like in your example 34526Image*.jpg.
This results in the following code
<?php
$pic_list = '';
$id = 0;
foreach(glob('../my-images/'.$randKey.'Image*.jpg') as $image) {
$pic_list .= '<a id="example'.++$id.'" href="'.$image.'"><img alt="example'.$id.'" src="'.$image.'" /></a>';
}
echo $pic_list;
?>

Answer 2

you have error in your foreach statement, for each file in folder you execute only 1 code line $i = 1;, everything after ; is executed only one time, after all iterations of foreach
you need to use proper foreach:
$files = glob('../my-images/'); // need to define proper mask here to get only files with $randKey
$i = 1;
foreach($files as $image)
{
$pic_list .= '<a id="example1" href="'.$image.''.$randKey.'Image'.$i.'.jpg">';
$pic_list .= '<img alt="example1" src="../my-images/'.$randKey.'Image'.$i.'.jpg" />';
$pic_list .= '</a>';
$i++;
}