Write in a log file

I have a log file in which i can write information when clearing the file content.

but when i try to write information about who is logging in. the information are not written on the file.

the code is given below:


this is the function through which to append in file.

function log_action($action,$message="")
{
$logfile = "../logs/log.txt";

if($file_handle = fopen($logfile,'a')){
$timestamp = strftime("%Y/%m/%d %H:%M:%S",time());
$total_content = "{$timestamp} | {$action} : {$message} ";
fwrite($file_handle,$total_content);
fclose($file_handle);
}
else{
echo "Couldnot open file";
}

}


this code below works when i clear the log file and writes sth in the log.txt file.

if(isset($_GET['id'])){
$getvalue = $_GET['id'];
if($getvalue == 'true'){
file_put_contents($logfile,'');
log_action('logs Cleared',"By user with id {$session->user_id}");//redirect to the same page so that the URL won't have "clear=true" anymore
header('Location:logfile.php');
exit;
}
}

the code below (log_action()) is not writing anything in the log.txt file

if ($found_user) {
$user = $found_user;
$session->login($found_user);
log_action('logged in ", "By user {$found_user} \r\n");
header('Location: panel.php');
exit;
} else {
// username/password combo was not found in the database
$message = "Username/password combination incorrect.";
}

 

Not sure if it's just a copy/paste error, but this line:

log_action('logged in ", "By user {$found_user} \r\n");

Did you start the logged in literal with a single quote and then end it with a double quote?