I have come so far

[kimjessen]

hi! 

I work a little to save some data in a CSV file. 

and I have come so far

$date = date('dmy');

    define("LOG_FILE", $date);

	if(!isset($_GET["temp"])) ;


	$temp = $_GET["temp"];

    $date=gmdate("Y-m-d-h-i", time());
    
	$file_handler = fopen(LOG_FILE, "a+");
	fwrite($file_handler, $date . "," . $temp . "\n");
	fflush($file_handler);
	echo "OK";

it works well. 

 

I would like to combine the filename with a text FX. water level + the date .csv 

 

but I can not get it to work for someone who will help

 

[kimjessen]

have solved it

	$date = date('dmy');
	$prefix="Temp-";
        $suffix=$date;
        $filename=$prefix.$suffix.".csv";   //         Solution
	
    
    define("LOG_FILE", $filename);

	if(!isset($_GET["temp"])) ;


	$temp = $_GET["temp"];

    $date=gmdate("Y-m-d-h-i", time());
    
	$file_handler = fopen(LOG_FILE, "a+");
	fwrite($file_handler, $date . "," . $temp . "\n");
	fflush($file_handler);
	echo "OK";

[CroNiX]

why do you create so many extra variables that you never reuse? And create variables and then just store them in another variable?

1. $date = date('dmy');
   $prefix="Temp-";
   $suffix=$date;
   $filename=$prefix.$suffix.".csv"; // Solution
   
   

$filename = 'Temp-' . date('dmy') . '.csv';

[kimjessen]

hey it's because I'm a beginner. 

I am working to get a handle on it.