Something

<form method="post" action="bear.php">
<textarea name="textbox" value="<?php $text?>" cols="50" rows="7">
<?php 
	$handle = fopen("text.txt", "a+");
	fwrite($handle, $text."\n");
	fclose($handle);
?>
</textarea>
<br>
<input type="submit" value="Post">
</form>
<br>
</div>
<?php
	$text = $_POST['textbox'];
	$contents = file_get_contents("text.txt");
/*  $contents = split("\n", $contents); */
	echo $contets
 ?>