Skip to main content

PHP unlink function

Image
By User


This is the code 





$query = mysql_query("SELECT avatar FROM users WHERE UserID = ".$userID.""); 

        $row = mysql_fetch_array($query);

        $user_avatar = trim($row['avatar']);

unlink($user_avatar);


but for some reason i get this error Warning:unlink();



why $user_avatar returns empty ? and if i echo it shows t_cabbbccebbfhdb.jpg


Source: Tips4all, CCNA FINAL EXAM
Labels:

Comments

  1. UserMay 10, 2012 at 3:04 AM

    unlink remove files whereas unset is for variables.

    If the variable returns empty, perhaps the query does not return any records. Did you try to run the query manually?

    ReplyDelete
  2. UserMay 10, 2012 at 3:04 AM

    $query = mysql_query("SELECT avatar FROM users WHERE UserID = ".$userID."");
    $row = mysql_fetch_array($query);
    $user_avatar = trim($row['avatar']);
    unset($user_avatar);

    //if you want to unlink file then

    if(!empty($user_avatar)) {
    unlink($home.$user_avatar); // $yourFile should have full path to your file
    }

    ReplyDelete
  3. UserMay 10, 2012 at 3:04 AM

    In PHP unlink is used to delete a file, make sure you are giving right path. see here for details http://se.php.net/unlink

    try unset for variables. http://se.php.net/manual/en/function.unset.php

    ReplyDelete

Post a Comment

Popular posts from this blog

Why is this Javascript much *slower* than its jQuery equivalent?

By User
I have a HTML list of about 500 items and a "filter" box above it. I started by using jQuery to filter the list when I typed a letter (timing code added later): $('#filter').keyup( function() { var jqStart = (new Date).getTime(); var search = $(this).val().toLowerCase(); var $list = $('ul.ablist > li'); $list.each( function() { if ( $(this).text().toLowerCase().indexOf(search) === -1 ) $(this).hide(); else $(this).show(); } ); console.log('Time: ' + ((new Date).getTime() - jqStart)); } ); However, there was a couple of seconds delay after typing each letter (particularly the first letter). So I thought it may be slightly quicker if I used plain Javascript (I read recently that jQuery's each function is particularly slow). Here's my JS equivalent: document.getElementById('filter').addEventListener( 'keyup', function () { var jsStart = (new Date).getTime()...
3 comments
Read more

Is it possible to have IF statement in an Echo statement in PHP

By User
Thanks in advance. I did look at the other questions/answers that were similar and didn't find exactly what I was looking for. I'm trying to do this, am I on the right path? echo " <div id='tabs-".$match."'> <textarea id='".$match."' name='".$match."'>". if ($COLUMN_NAME === $match) { echo $FIELD_WITH_COLUMN_NAME; } else { } ."</textarea> <script type='text/javascript'> CKEDITOR.replace( '".$match."' ); </script> </div>"; I am getting the following error message in the browser: Parse error: syntax error, unexpected T_IF Please let me know if this is the right way to go about nesting an IF statement inside an echo. Thank you.
5 comments
Read more