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westman
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There are many ways to look at the contents of a directory using PHP.

I don't see a need to use numbers as  filenames, overall it actually becomes more difficult to manage because conflicts may occur when two or more users are creating files at the same time.

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This is how I started the needed code but it is not working

$directory = 'pro_images/'.$id.'/casual';
if (file_exists($directory) && is_dir($directory)) {
$scanned_directory = array_diff(scandir($directory), array('..', '.'));
}
$scanned_directory2 = explode(",", $scanned_directory);
echo $scanned_directory2;

any help?

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I found a method, coded it and it works.
Every image uploaded I added to an array I put in the DB.
Looking like this; 1,2,3,4,5,7,8,9
To view the images I used this...

$pic_array = explode(",", $pic);
foreach ($pic_array as $key => $value) {
$check_pic_array = 'pro_images/'.$id.'/pro'.$value.'.jpg';
if (file_exists($check_pic_array)) {
$pic = '<img src="$check_pic_array" style="max-width:100px; max-height:100px;" border="1">';

}
}


As you can see number 6 is missing. With this method it is easy to locate and remove unwanted files from the DB and server.

Thank you for your help. 

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There are several ways to do this as explained here https://stackoverflow.com/questions/369602/php-delete-an-element-from-an-array?rq=1

Since you know the value/s you might as well use array_diff()

        <?php
        $pic_array = [1, 2, 3, 4, 5, 6, 7, 8, 9];

        echo '<p>remove key/value, but not reseting remaining keys using array_diff()</p>';
        $remove = [6];
        $pic_array = array_diff($pic_array, $remove);
        var_dump($pic_array);

        echo '<p>remove multi keys/values, but not reseting remaining keys using array_diff()</p>';
        $remove = [6, 2];
        $pic_array = array_diff($pic_array, $remove);
        var_dump($pic_array);

        echo '<p>reseting remaining key values using array_values()</p>';
        $pic_array = array_values($pic_array);
        var_dump($pic_array);
        ?>

 

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Thank you so much for the examples.
few more questions.
In my DB my array looks like
1,2,3,4,5,6,7,8,9
not
1, 2, 3, 4, 5, 6, 7, 8, 9
Is that a problem?

also 
can I change

$remove = [6];

to
 

$number_to_drop = '6';
$remove = [$number_to_drop];

?

 

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  • 2 weeks later...

Last question on this.

 

$pic_array = array_diff($pic_array, $remove);
var_dump($pic_array);

is printing the following to my page
array(5) { [0]=> string(1) "1" [2]=> string(1) "3" [3]=> string(1) "4" [4]=> string(1) "5" [5]=> string(1) "6" }

How do I stop it printing to my page?

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