Delete image(s) associated with record from folder - php

Question

I have a page that allows for multiple record deletes using checkboxes and all works fine.
However, each record may have an image associated with it stored in a folder that would also need to be deleted but I have no idea how to achieve this even though I've searched Stackoverflow and Google.
How do I delete the record(s) from the MySQL database and the image(s) associated with it from the folder?
What I have so far is:
The code that deletes the records:
if ( isset( $_POST[ 'chk_id' ] ) ) {
$arr = $_POST[ 'chk_id' ];
foreach ( $arr as $id ) {
#mysqli_query( $KCC, "DELETE FROM pageContent WHERE contentID = " . $id );
}
$msg = "Page(s) Successfully Deleted!";
header( "Location: delete-familyservices.php?msg=$msg" );
}
The form that selects the records to delete:
<form name="deleteRecord" id="deleteRecord" method="post" action="delete-familyservices.php">
<?php if (isset($_GET['msg'])) { ?>
<p class="alert alert-success">
<?php echo $_GET['msg']; ?>
</p>
<?php } ?>
<table width="100%" class="table table-striped table-bordered table-responsive">
<tr>
<th>Page Title</th>
<th>Page Text</th>
<th>Page Image</th>
<th>Delete</th>
</tr>
<?php do { ?>
<tr>
<td width="30%" style="vertical-align: middle">
<h4 style="text-align: left">
<?php echo $row_rsContent['contentTitle']; ?>
</h4>
</td>
<td width="45%" style="vertical-align: middle">
<?php echo limit_words($row_rsContent['contentData'], 10); ?> ...</td>
<td align="center" style="vertical-align: middle">
<?php if (($row_rsContent['contentImage']) != null) { ?>
<img src="../images/<?php echo $row_rsContent['contentImage']; ?>" class="img-responsive">
<?php } else { ?> No Image
<?php } ?>
</td>
<td width="5%" align="center" style="vertical-align: middle"><input type="checkbox" name="chk_id" id="chk_id" class="checkbox" value="<?php echo $row_rsContent['contentID']; ?>">
</td>
</tr>
<?php } while ($row_rsContent = mysqli_fetch_assoc($rsContent)); ?>
</table>
<p> </p>
<div class="form-group" style="text-align: center">
<button type="submit" name="submit" id="submit" class="btn btn-success btn-lg butt">Delete Selected Page(s)</button>
<button class="btn btn-danger btn-lg butt" type="reset">Cancel Deletion(s)</button>
</div>
</form>
The final piece of code, which is a confirmation script:
<script type="text/javascript">
$( document ).ready( function () {
$( '#deleteRecord' ).submit( function ( e ) {
if ( !confirm( "Delete the Selected Page(s)?\nThis cannot be undone." ) ) {
e.preventDefault();
}
} );
} );
</script>
I've seen the unlink() function mentioned but I don't know if this is what to use or have any idea how to incorporate it into the existing code if it is.

Answer 1

you'll have to use the path of the image which is stored on you database like so :
unlink(' the link of the images which is fetched from db'); // correct
don't forget to check for image existence file_exists() //

Answer 2

Got this from another site and a bit of trial and error.
if($_POST) {
$arr = isset($_POST['chk_id']) ? $_POST['chk_id'] : false;
if (is_array($arr)) {
$filter = implode(',', $arr);
$query = "SELECT *filename* FROM *table* WHERE *uniqueField* IN ({$filter})";
$result = mysqli_query(*$con*, $query);
while ($row = mysqli_fetch_object($result)) {
$pathToImages = "*path/to/images*";
{
unlink("{$pathToImages}/{$row->contentImage}");
}
}
// DELETE CAN BE DONE IN ONE STATEMENT
$query = "DELETE FROM *table* WHERE *uniqueField* IN ({$filter})";
mysqli_query(*$con*, $query);
$msg = "Page(s) Successfully Deleted!";
header("Location: *your-page.php*?msg=$msg");
}
}
Thanks to everyone who contributed.
Hope this is of some help to others.