Php Sorting Alphabetically

Destrucci

<!doctype html public "-//W3C//DTD HTML 4.0 //EN"> 
<html>
<head>
       <title>Guestbook</title>
</head>
<body>
<table border="1">

<?php
$Name = $_POST['Guestbook_Name'];
$Email = $_POST['Guestbook_Email'];
if ($Name == ""  && $Email == "")
{
    echo "No user Input";
}
else{
$PostGuest = addslashes("$Name~$Email\n");
$GuestbookStore = fopen("guestbook.txt", "a");
fwrite($GuestbookStore, "$PostGuest");
fclose($GuestbookStore);
}

if (!file_exists("guestbook.txt") || filesize("guestbook.txt") == 0)
   echo "<p>No guestbook Entries</p>";

else{
     $GuestbookArray = file("guestbook.txt");
       for ($i = 0; $i < count($GuestbookArray); ++$i){
           $CurEntry = explode("~", $GuestbookArray[$i]);
           echo "<tr>";
           echo "<td><strong>", ($i + 1), "</strong></td>";
           echo "<td><strong>Name</strong>:", stripslashes($CurEntry[0]), "<br />";
           echo "<td><strong>Email</strong>:", stripslashes($CurEntry[1]), "<br />";
           echo "</td></tr>";

   }
   }


?>

</table>
<h4>Guestbook</h4>
<form action="Week9_Chapter7.php" method="post">
<input type="text" name="Guestbook_Name" value="">
<input type="text" name="Guestbook_Email" value="">
<input type="submit" />
</form>
</body>
</html>

I want to sort the guest-book entries in alphabetical order. This is a assignment so I'm not too worried about the security at this time. I'm new to php and not too familiar what to do in this situation. I am storing the values within a text document called 'guestbook.txt'.

NogDog

You can read the file into an array via the [man]file/man function, then sort it as desired via any of the several sorting array functions[url] (such as sort(), natsort(), etc.), then rewrite it back to the file via [man]file_put_contents[/man]() with [man]implode[/man]().

dagon

This kind of data would usually be stored in a db, which is a lot easier to manipulate than a txt file.

lakshmiyb

if (!isset($_GET['letter'])) 
{
	$letter = "A";
	} 
	else 
	{
		$letter = $_GET['letter'];
		} 
echo '<div align="center"><b>'; 

for ($i=65; $i<90; $i++) 
{ 
   if ($letter!= chr($i))
     {	
	   echo '<a href="zalphadisplay.php?letter='.chr($i).'">';
	 } 
echo chr($i)."&nbsp;"; 

   if ($letter!= chr($i)) 
       {
		   echo '</a>';
		} 
} 
   echo "</b></div><p>";

hope this can be useful

scrupul0us

dunno if this would be faster since you'd be using an array of values vs doing lookups with chr()

foreach(range('A','Z') as $ltr)
{
     if ($letter!= $ltr)
     {    

     echo '<a href="zalphadisplay.php?letter='.$ltr.'">';
     }

 echo $ltr."&nbsp;";

 if ($letter!= $ltr)
 {
 echo '</a>';
 }
}