<br/><hr style="background-color: rgb(150,150,150); color: rgb(150,150,150); width: 100%; height: 4px;"><br/>
    <form name="savefile" method="post" action="">
        File Name: <input type="text" name="filename" value=""><br/>
        <textarea rows="16" cols="100" name="textdata"></textarea><br/>
        <input type="submit" name="submit" value="Save">
</form>

<?php
if (isset($_POST)){

   if ($_POST['submit'] == "Save"  && !empty($_POST['filename'])) {
        //Save File
        $file = fopen($_POST['filename'],"w");
        $text = $_POST["textdata"];
        
		fwrite($file, $text);
	
        fclose($file);
		
		echo "save sucess file name: ".$_POST['filename'];
    }

    if ($_POST['submit'] == "Submit File Request") {
         //Open File
         $file = fopen($_POST['filename'] & ".txt", "r") or exit("Unable to open file.");
         while(!feof($file)){
            echo fgets($file). "<br />";
          }
         fclose($file);
     }
}
?>