Removing Indexes

Options -Indexes

Adding Indexes

Options +Indexes

As simple as that! Here is the link I found that might come in pretty handy.
http://www.hostingmanual.net/other/htfun.shtml

Though I do not have the whole .htaccess thing down yet. I have found some code that simply works. As always I post it for myself as well as anyone who needs it.


<IfModule mod_deflate.c>
<FilesMatch "\.(js|css)$">
SetOutputFilter DEFLATE
</FilesMatch>
</IfModule>


Connecting to the database

Step 1. Create and configure some connection variables.

$mysql_server = "mysql.yourserver.com";
$mysql_user = "admin";
$mysql_pwd= "password";
$mysql_db= "mydatabase";

Step 2. Create connection.

$mysql_connection =
mysql_connect($mysql_server, $mysql_user, $mysql_pwd);

Step 3. Select your database.

mysql_select_db($mysql_db) or die("Unable to select a database.");

Step 4. Create your SQL string.

$mysql_sql = "SELECT * FROM mytable";

Step 5. Combine your connection string and your SQL to return data.

$mysql_result = mysql_query($mysql_sql, $mysql_connection);

Printing the data

Step 6. Loop through the results and write it to the page. This output’s format is not pretty since it is meant to be simple.

while($data_row = mysql_fetch_row($mysql_result)) {
    foreach($data_row as $data_field) {
        print $data_field;
    }
    print "<br />";
}

Step 7. Close the connection string.

mysql_close($mysql_connection);

I recently installed YSlow, a handy web development tool for Firefox. In it there is an option that tells you whether your CSS or JavaScript files are cached on the client’s computer allowing for a quicker page load. I noticed my files were not cached so I looked a little into how to go about caching them so the browser won’t download the same file over and over when going from page to page. So I went about conducting my own tests to see how to make this happen. The only way of making it happen other than setting an expire date/time on the WHOLE page (or on the .htaccess file in Linux servers) was to create a server-side file that would output the expiration, content type headers as well as the actual styles/code in your web application. Below is a clearer picture of how I made it happen.

PHP- Step 1.

Make a dynamically generated CSS file that includes expiration and content headers (code below). Save it as ‘dynamic_css.php’. The actual CSS styling can be typed in the same way you would do in a regular stylesheet, we are only after getting those expiration and content type headers sent out.

<?php
header("Expires: Thu, 31 Dec 2020 20:00:00 GMT");
header('Content-type: text/css');
?>
h1 { color: Red; }

PHP- Step 2.

Add ‘dynamic_css.php’ as the CSS href of you document. This should make YSlow happy and increase the speed at which the user navigates through pages that use the same CSS file. Use the same method to add expiration tags to JavaScript.

<link rel="stylesheet" type="text/css" href="dynamic_css.php"/>

ASP- Step 1.

The way I added expire tags to my CSS code in ASP is very similar to PHP’s. First you make a server-side CSS file and save it as ‘dynamic_css.aspx’. Since it is important the headers hit the server first we use server-side code  to send those out first. We type in the actual CSS code like we would in a regular CSS file after that. Besides would you really want to Response.Write() all of your CSS code? I think not.

<%
    Response.Expires = 3600
    Response.ContentType = "text/css"
%>
    h1 { color: Blue; }

ASP- Step 2.

Add ‘dynamic_css.aspx’ as the CSS source of you document. This should make YSlow happy since the expiration headers are now being sent increasing the speed at which the user navigates through the pages that share the same CSS file. Use this same header method to add expiration tags to JavaScript files.

<link rel="stylesheet" type="text/css" href="dynamic_css.aspx"/>

FileETag None

1. Get the current website address.

$website = $_SERVER['HTTP_HOST'];

Woah that was simple! Now the current folder path.

2. Get the current folder path.

$filePath= $_SERVER['REQUEST_URI'];

Did you catch that? It was so fast.

Put the first part and the second together (and of course add an “http://”) and you have the current file’s complete url!

$fileWebAddress= "http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

Before HTML

A few of the reasons you would want to place your code before the HTML are because you want to redirect the user to another page on your website, or getting data out of a database and placing it on your page as content.

<?php $pageTitle = "Cesar's page"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title><?php echo $pageTitle; ?></title>
</head>
<body> ...

In the script tag

Yes! Just like Javascript you can place your PHP code within a script tag, but also like Javascript gets executed after your page loads. Though I have not seen many people using this method I think it really helps you keep your code clean and organized. It is similar to the .NET code placement.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>My Web Page</title>
<script language="php">
$pageContent = "Cesar's page content.";
</script>
</head>
<body>
<?php echo $pageContent; ?>
</body>
</html>

Within HTML

Mixing HTML and PHP is probably the most common way PHP applications are made. As useful and conventional as this type of coding can be, it can also become confusing. Below is an example of how that looks.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>My Web Page</title>
</head>
<body>
<?php
$HeadDiv = "<div><h1>Welcome to my website!</h1></div>";
$BodyDiv = "<div><p>Are you ready to hire me?! Click on my port...</p></div>";
$FooterDiv = "<div>copyright ...</div>";
?>
<?php
echo $HeadDiv;
echo $BodyDiv;
echo $FooterDiv;
?>
</body>
</html>

After HTML

This might be an unorthodox way of code execution but nonetheless it is a possibility and depending on your application needs, it might be a useful one. Your code will execute after the HTML so anything that would be rendered above your HTML will render below it (afterwards) now. Here is how that looks. Please comment if you have an idea of how it would be useful.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>My WebApp</title>
</head>
<body>
<form action="/code/untitled.php" method="post">
<input type="text" name="txtMessage" />
<input type="submit" value="submit" />
</form>
</body>
</html>
<?php echo $_POST['txtMessage'];?>

Loops are very useful to help sift through information for what you need. However once you find your data you probably would like your loop to stop. For that you would have to use the BREAK statement.
In this case the BREAK statement was used to not generate a division by zero warning. Watch as the code is stopped right before division by zero occurs.

<?php
$count = -10;
for (;$count <= 10; $count++) {
     if ($count == 0) {
     break;
     } else {
             $result = 200/$count;
             echo "200 divided by $count is $result<br />";
     }
}
?>

Results:
200 divided by -10 is -20
200 divided by -9 is -22.222222222222
200 divided by -8 is -25
200 divided by -7 is -28.571428571429
200 divided by -6 is -33.333333333333
200 divided by -5 is -40
200 divided by -4 is  -50
200 divided by -3 is -66.666666666667
200 divided by -2 is -100
200 divided by -1 is -200

Continue

The continue statement ends the execution of the current code lap but doesn’t stop the whole loop from continuing.

The following code, similar to the break, will stop the code from dividing by zero but continue afterwards.

<?php
$count = -10;
for (;$count <= 10; $count++) {
     if ($count == 0) {
     continue;
     } else {
             $result = 200/$count;
             echo "200 divided by $count is $result<br />";
     }
}
?>

Results:
200 divided by -10 is -20
200 divided by -9 is -22.222222222222
200 divided by -8 is -25
200 divided by -7 is -28.571428571429
200 divided by -6 is -33.333333333333
200 divided by -5 is -40
200 divided by -4 is -50
200 divided by -3 is -66.666666666667
200 divided by -2 is -100
200 divided by -1 is -200
200 divided by 1 is 200
200 divided by 2 is 100
200 divided by 3 is 66.666666666667
200 divided by 4 is 50
200 divided by 5 is 40
200 divided by 6 is 33.333333333333
200 divided by 7 is 28.571428571429
200 divided by 8 is 25
200 divided by 9 is 22.222222222222
200 divided by 10 is 20

<?php
$count = 1;
while ($count <= 12) {
        echo $count . "<br />";
        $count++;
}
?>

Do while

Similar to a while loop with the exception that the code block is executed before the loop repeats. Note how it does not keep executing after the code realizes $number is not greater than 100 and less than 200.

<?php
$number = 1;
do {
    echo $number . "<br />";
    $number ++;
} while (($number > 100) && ($number < 200));
?>

For (each)

Like the While statement but without having to declare variables outside the loop. The For statement includes the variable which you are incrementing in one line of code.

<?php
for ($count = 1; $count <= 12; $count++) {
     echo $count . "<br />"
}
?>