Delete an image using PHP?

Question

I have a folder images/ i've created a php script that uploads the image and now i want to delete it. I have in the form that deletes the image a that takes a value of the image's path to be deleted. I've tried the unlink function but still nothing. I was thinking of writing sth like unlink($_POST[img_del]); HELP???

Answer 1

First add the next function to your file:

function delete_images_by_refnum($image_folder, $ref_num)

{

$d = opendir($image_folder);'

if(!is_resource($d)) return;

while($f = readdir($d))

{

if(substr($f, 0, strlen($ref_num)+1) == $ref_num + '_')

unlink ($image_folder.'/'.$f);

}

}



Secondly edit the code you quotes in your last post to call the function:



if ($row = mysql_fetch_array($PropertiesResult))

{

$ref_num = $row['property_ref_num'];

delete_images_by_refnum(dirname(__FILE__).'/myimagefolder', $ref_num);



You have to change the first argument to state the correct foldername offcourse. You have to provide a relative link to the file this code is in. So when your code is in lib/delete.php and your images are in img/ the command would be:

delete_images_by_refnum(dirname(__FILE__).'/../img', $ref_num);

Answer 2

To use unlink, you must be IN the relevant diretory. (You cannot delete a file passing a PATH).

// Read your post to have image name:

$image = $_POST['img_del']; // (or $_GET)

// get the current directory:

$curdir = getcwd();

// Change to the directory where the image is:

chdir("images/");

// delete the image

unlink ($image); // must be full name with extention!

// return to the original directory:

chdir($curdir);

Answer 3

Man, what is it with making things harder than it needs to be?



First: you need the path of the directory:



$dir = 'd:/my_folder/';



Then you need the name of the image:



$img = 'image.jpg';



Now this:



$fileName = $dir.$img;



if(file_exists($fileName)) unlink($fileName);



Check to make sure the file exists before deleting it. You can alter it so if the conditional statement fails you can get an error message.