Help with Guestbook

pazza · July 17, 2007

Ok, so I'm trying to set up a guestbook. I used one of these basic php scripts and customized it a little bit, but there are still a few changes i want to make.

1. Most importantly, I want new posts to appear at the top instead of the bottom.

2. Can I limit the text entered in the textboxes, to 100 characters.

3. Is there any way i can stop blank forms being submitted?

4. I can get the date shown, but i want it in '16.07.07' format, NOT 'Tuesday, July 16th 07'

www.steparry.com/guestbook3.php

Heres my script:

<?PHP

$nob = "<IMG SRC='speech1.jpg'>";

$nobs = "<HR width='100%' color='#00d214' size='1'>";

$filename = "guestbook3.txt"; #CHMOD to 666

$text = "";

if (isset($_POST["submit"])) {

$name = htmlspecialchars($_POST["name"]);

$message = htmlspecialchars($_POST["message"]);

$date = date ("l, F jS, Y");

$time = date ("h:i A");

$value = $message."<br>\n<span style=\"font-family: verdana, arial, sans-serif; font-size: 70%; color: #505050;\">Posted by <B>$name</B>.\n</span>\n<break>\n$nobs\n$nob\n";

##Write the file##

$fp = fopen ($filename, "a");

if ($fp) {

fwrite ($fp, $value);

fclose ($fp);

}

else {

echo ("Your entry could not be added.");

}

}

?>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"

"http://www.w3.org/TR/html4/strict.dtd">

<html>

<head>

<title>Guestbook</title>

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">

</head>

<BODY topmargin="0" leftmargin="0" rightmargin="0" link="black" alink="black" vlink="black">

<table border="0" cellpadding="0" cellspacing="0" height=100% width=100%>

<tr>

<td width="200" height="100%" bgcolor="#ffffff">

<form action="<?PHP echo $_SERVER["PHP_SELF"]; ?>" method="post">

<p><font size="2" face="arial">

Name: <br>

<input type="text" name="name" size=18 style="border-color: black; border-width: 1px;">

<br>

Message:<br>

<textarea name="message" rows="3" cols="18" style="border-color: black; border-width: 1px;"></textarea><br>

<input type="submit" name="submit" value="submit"></p>

</form>

<?PHP

$contents = @file($filename) or die("No files in guestbook.");

foreach ($contents as $line_num => $line) {

$text .= $line;

}

$text = split("<break>", $text);

for ($i=0; $i<count($text)-1; $i++) {

echo "<div style=\"border: gray 0px solid; padding: 3px; font-family: arial, sans-serifs;\">";

echo $text[$i];

echo "</div>";

}

?>

</td>

<td width="200" height="100%">

</td>

</tr>

</table>

</BODY>

</HTML>

Any help will be greatly appreciated.

lur · July 17, 2007

1. Most importantly, I want new posts to appear at the top instead of the bottom.

//change
$text = split("<break>", $text);

//to
$text = array_reverse(split("<break>", $text));

2. Can I limit the text entered in the textboxes, to 100 characters.
3. Is there any way i can stop blank forms being submitted?

//after
$message = htmlspecialchars($_POST["message"]);

//add
if (empty($message)) {
    exit('You cannot post an empty message.');
}

if (strlen($message) > 100) {
    exit('Your message is too long.');
}

4. I can get the date shown, but i want it in '16.07.07' format, NOT 'Tuesday, July 16th 07'

Change the format string ("l, F jS, Y"), read the manual on date().

pazza · July 17, 2007

Thank you so much for that, it would have taken me a lifetime.

A couple more questions

1. Theres a blank entry that stay at the top. Tried deleting it from the .txt file but didnt work.

2. If someone enters a long piece of text, it stretches my table size. How do i prevent this?

3. Can i use an image file instead of the 'Message Too Long' and can it also be a Back button.

Thanks again

Oh and,

4. If i put this in a frame or a DIV box on my index page, will it work, or mess everything up.

pazza · July 17, 2007

Another one, sorry

5. When I change my button code to TYPE="submit" to TYPE="image", it shows the .gif image, but the button stops working.

cheers

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