unlink($filename) : Permission denied Warning

I am getting Permission denied waring when i try to use unlink().

I have created i function to delete an image from content directory :

function del($fnam){
chmod('content/'.$fnam, 0777);   
chown('content/'.$fnam,465);
unlink('content/'.$fnam);   
}

I have used chmod() and chown() after reading from forums , still i am getting that warning and image is not getting deleted.

How ever it runs as charm when i call it from different location.

if($temp2==1){      //For Delete
$sql="delete from blog where b_id=$temp1";
$im=fetch('blog','b_img','b_id='.$temp1);

//Deleting Image

    del($im);
}

code above is not in any function (running procedural fashion), and this is giving me positive response. How to fix that?

in this situation you can't remove file with php because php don't have enough permission if you can't change permission from above , try a hack with FTP (i know its not usual but its works and it can help you for personal usage)

// set up basic connection
$conn_id = ftp_connect($ftp_server);

// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);

// try to delete $file
if (ftp_delete($conn_id, $file)) {
 echo "$file deleted successful\n";
} else {
 echo "could not delete $file\n";
}