write and append filename to text file if not exist

[acctman]

i'm using the code below to display images, i'd like for it to write the file name to a text filename ($mid.'-'.$iid.'.jpg') if it does not exist, how can I do that and have it append each time.

 

session_start();
$userid = $_SESSION['userid'];
if ($_GET['sec'] != 3 && $userid == '') {
header("Location: http://www.main.com");
exit;
}
ob_start();

if (isset($_GET['mid']) && isset($_GET['iid']) && isset($_GET['idat']) && isset($_GET['sec'])) {
$mid = $_GET['mid'];
$iid = $_GET['iid'];
$date = $_GET['idat'];

if ($_GET['sec'] == 1) { $type = "imgPvt";
$allowed = 0;
	if (intval($_SESSION['userid']) > 0) {
		if (mysql_num_rows(mysql_query("select p_id from rate_private where p_from='$mid' and p_to='" .$_SESSION['userid']. "'")) > 0 || $mid == $_SESSION['userid'] || $_SESSION['userid'] == '39') {
        $allowed = 1;
		} elseif ($allowed == 0 && $_GET['sec'] == 1) {
			header("Location: http://www.main.com");
			exit;
		}
	} 
}	
if ($_GET['sec'] == 2) { $type = "imgExp"; } 
if ($_GET['sec'] == 3) { $type = "imgPub"; }			
  $im = @imagecreatefromjpeg('../imgs/'.$date.'/'.$mid.'/'.$type.'/'.($_GET['tmb']==1 ? 'imgTmb/' : '').$mid.'-'.$iid.'.jpg');
  	if(!$im) {
  		exit();
  	}
header("Content-type: image/jpeg");	
imagejpeg($im);
imagedestroy($im);					
}
$buf = ob_get_contents();
ob_end_clean();
print $buf;

[ignace]

@fopen($mid.'-'.$iid.'.jpg', 'w');

[acctman]

@fopen($mid.'-'.$iid.'.jpg', 'w');

 

W does not seem to be appending

[laffin]

shud be rread wwrite append.

u can add a + which sets it as both read/write.

 

r read only, file pointer at start

r+ read/write, file pointer at start

w write (kill original file), file pointer at start

w+ read/write (kill original file), file pointer at start

a append, file pointer at end

a+ append/read, file pointer at end

 

and ya can add to the aboce to put it in binary mode  (no cr/lf translation)