Sometimes writing to a file is much easier that writing to a database. It is quite a tedious job to create a database, create a user to point to a database then create table and so on.
With a flat file you can just create a blank file (with any extension). I prefer still to use .php file so that people cannot read the file via web.
Here is the code to write and append to a file.
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$name = "anyname"; $email = "anyemail"; $myFile = "yourdatafile.php"; $fh = fopen($myFile, 'a') or die("Failed to open file."); $stringData = "$name;;$email\n"; fwrite($fh, $stringData); fclose($fh);
Make sure you set your file to 666 (writable). If you want to overwrite each time data is saved, use fopen($myFile, ‘w’) ~ parameter ‘w’ instead of ‘a’