Match $var in text file ?

[Peuplarchie]

Good day to you all,
stupid as it sound, all the thing that I have tried to match a variable into a text file and execute according to it result.

PHP Code:


$active = "user_list.txt";
$pos = strpos($active, $_SESSION['username']);
if ($pos === false) {
echo "<b id=\"userinfo\"><img src=\"enligne.png\" valign=\"bottom\" width=\"13px\"/></b>";
} else {
echo "<b id=\"userinfo\"><img src=\"horsligne.png\" valign=\"bottom\" width=\"13px\"/></b>";
}


Thanks !

[SrWebDeveloper]

If I understand you correctly, you have a text file on the server named user_list.txt and wish to see if the session user name is in that file and then display the desired image based on the comparison.

Your code as posted uses the value you set for $active which is "user_list.txt", not the file. You have no code to import the file into that variable.

If my assumptions are correct, try this revised code:

PHP Code:

$active="/physical_path_to/user_list.txt";  // adjust path
if (file_exists($active)) {
  $haystack=file_get_contents($active);
  $findme=preg_quote($_SESSION['username'], "/");
  if (!preg_match("/".$findme."/i",$haystack)) {
echo "<b id=\"userinfo\"><img src=\"enligne.png\" valign=\"bottom\" width=\"13px\"/></b>";
} else {
echo "<b id=\"userinfo\"><img src=\"horsligne.png\" valign=\"bottom\" width=\"13px\"/></b>";
}
}


If user_list.txt is in or within your document root directory (the base folder you uploaded your web files) replace line 1 in my example code with:

$active=$_SERVER['DOCUMENT_ROOT']."/path_to/user_list.txt";

And adjust the path as necessary, so if the script is ever moved to a different server with a different document root path it won't break.

The rest that follows are "btw, I noticed..." comments:

Also, I'm sure you have your reasons for enclosing each image in a bold tag, but without text it seems odd. If you don't need the <b> tag remove it and move the ID to the img tags. Also, it's perfectly legal to use single quotes instead of double quotes in simple HTML like this. Each byte counts!

Cheers.

-jim