Check images on server folder against images on database - php

Question

I was wondering if is there anything pre-made to compare a single image folder on the server against a field on a mysql database to unlink/remove files not needed from the server and keep it clean.
Enough comparing image filename, but if come with thumnbnails/dates great.
Thanks

Answer 1

Top of the file
if (isset($_GET['delete'])) {
unlink($_GET['delete']);
header('Location: ' . $_SERVER['HTTP_REFERER']);
}
function getImagesFromDir($path) {
$images = array();
if ( $img_dir = #opendir($_SERVER['DOCUMENT_ROOT'].$path) ) {
while ( false !== ($img_file = readdir($img_dir)) ) {
// checks for gif, jpg, png
if ( preg_match("/(\.gif|\.jpg|\.png)$/", $img_file) ) {
$images[] = $img_file;
}
}
closedir($img_dir);
}
return $images;
}
Custom Form to select mysql TABLE and FIELD name as well as SERVER FOLDERS
<form action="<?php echo $_SERVER['PHP_SELF']; ?>">
<div class="form-group">
<select name="tablename">
<option value="<?php if (isset($_GET['tablename'])) { echo $_GET['tablename']; } ?>"><?php if (isset($_GET['tablename'])) { echo $_GET['tablename']; } ?></option>
<option value="TABLENAME1">TABLENAME1</option>
<option value="TABLENAME2">TABLENAME2</option>
</select>
<select name="fieldname">
<option value="<?php if (isset($_GET['fieldname'])) { echo $_GET['fieldname']; } ?>"><?php if (isset($_GET['fieldname'])) { echo $_GET['fieldname']; } ?></option>
<option value="FIELDNAME1">FIELDNAME1</option>
<option value="FIELDNAME2">FIELDNAME2</option>
</select>
<select name="folder">
<option value="<?php if (isset($_GET['folder'])) { echo $_GET['folder']; } ?>"><?php if (isset($_GET['folder'])) { echo $_GET['folder']; } ?></option>
<option value="RELATIVE_PATH_1"</option>
<option value="RELATIVE_PATH_2"</option>
</select>
<input type="submit" value="Send" class="btn btn-primary">
</div>
</form>
Now let's retrieve the images from the FOLDER that DON'T EXISTS ON THE DATABASE TABLE AS PER REQUEST ON THE FORM:
<?php if ((isset($_GET['tablename'])) && (isset($_GET['fieldname'])) && (isset($_GET['folder'])) ) {
$pdo = new PDO("mysql:host=$servername;dbname=$database", $username, $password, array(
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
));
if (isset($_GET['tablename'])) {
$table = $_GET['tablename'];
}
$query = $pdo->prepare("SELECT * FROM $table");
$query->execute();
$dbimages = $query->fetchAll(PDO::FETCH_ASSOC);
if ((!$query->rowCount() == 0)) {
$arraydbimg = array();
foreach ($dbimages as $row => $result) {
$arraydbimg[] = $result['img'];
}
}
if (isset($_GET['folder'])) {
$path = $_GET['folder'];
} else {
$path = '/your-default/images-folder/';
}
$imgList = getImagesFromDir($path);
$i=0;
foreach ($imgList as &$img) {
if (!in_array($img, $arraydbimg)) { ?>
<br clear="all">
<a href="admin.php?delete=<?php echo urlencode($_SERVER['DOCUMENT_ROOT']. $path . $img); ?>">
<img src="<?php echo $path . $img ?>" width="150px" height="auto" style="border-radius:0; margin:10px; border:1px #333 solid" />
</a><?php echo $img; ?>
<? } } } ?>
CLICK ON THE IMAGE JUST IF YOU WANT TO ERASE!