Oct 30, 2007

Creating Your Own Newsletter subscription/Unsubscription with PHP/MYSQL

You really need only one field in the subscribers table: to hold the email address of the user. However, you should have an ID field just for consistency among your tables, and also because referencing an ID is a lot simpler than referencing a long email address in where clauses. So, in this case, your MySQL query would look something like

mysql> create table subscribers (
    -> id int not null primary key auto_increment,
    -> email varchar (150) unique not null
    -> );
Query OK, 0 rows affected (0.00 sec)

Note the use of unique in the field definition for email. This means that although id is the primary key, duplicates should not be allowed in the email field either. The email field is a unique key, and id is the primary key.

This relationship is represented in the table information as MUL (or "multiple") in the Key field:

mysql> describe subscribers;
+-------+--------------+------+-----+---------+----------------+
| Field | Type         | Null | Key | Default | Extra          |
+-------+--------------+------+-----+---------+----------------+
| id    | int(11)      |      | PRI | NULL    | auto_increment |
| email | varchar(150) | YES  | MUL | NULL    |                |
+-------+--------------+------+-----+---------+----------------+
2 rows in set (0.00 sec)

Now that you have a table, you can create the form and script that place values in there.

Creating the Subscription Form

The subscription form will actually be an all-in-one form and script called manage.php, which will handle both subscribe and unsubscribe requests shows the code for manage.php, which uses a few user-defined functions to eliminate repetitious code.


Listing 18.1 Subscribe and
Unsubscribe with manage.php

  1: <?php

  2: //set up a couple of functions

  3: function doDB() {

  4:     global $conn;

  5:    //connect to server and select database; you may need it

  6:    $conn = mysql_connect("localhost", "joeuser", "somepass")

  7:         or die(mysql_error());

  8:    mysql_select_db("testDB",$conn) or die(mysql_error());

  9: }

 10: 

 11: function emailChecker($email) {

 12:     global $conn, $check_result;

 13:    //check that email is not already in list

 14:    $check = "select id from subscribers where email = '$email'";

 15:    $check_result = mysql_query($check,$conn) or die(mysql_error());

 16: }

 17: 

 18: //determine if they need to see the form or not

 19: if ($_POST[op] != "ds") {

 20:    //they do, so create form block

 21:    $display_block = "

 22:    <form method=POST action=\"$_SERVER[PHP_SELF]\">

 23: 

 24:    <p><strong>Your E-Mail Address:</strong><br>

 25:    <input type=text name=\"email\" size=40 maxlength=150>

 26: 

 27:    <p><strong>Action:</strong><br>

 28:    <input type=radio name=\"action\" value=\"sub\" checked> subscribe

 29:    <input type=radio name=\"action\" value=\"unsub\"> unsubscribe

 30: 

 31:    <input type=\"hidden\" name=\"op\" value=\"ds\">

 32: 

 33:    <p><input type=submit name=\"submit\" value=\"Submit Form\"></p>

 34:    </form>";

 35: 

 36: } else if (($_POST[op] == "ds") && ($_POST[action] == "sub")) {

 37:    //trying to subscribe; validate email address

 38:    if ($_POST[email] == "") {

 39:        header("Location: manage.php");

 40:        exit;

 41:    }

 42:    //connect to database

 43:    doDB();

 44:    //check that email is in list

 45:    emailChecker($_POST[email]);

 46: 

 47:    //get number of results and do action

 48:    if (mysql_num_rows($check_result) < 1) {

 49:        //add record

 50:        $sql = "insert into subscribers values('', '$_POST[email]')";

 51:        $result = mysql_query($sql,$conn) or die(mysql_error());

 52:        $display_block = "<P>Thanks for signing up!</P>";

 53:    } else {

 54:        //print failure message

 55:        $display_block = "<P>You're already subscribed!</P>";

 56:    }

 57: } else if (($_POST[op] == "ds") && ($_POST[action] == "unsub")) {

 58:    //trying to unsubscribe; validate email address

 59:    if ($_POST[email] == "") {

 60:    header("Location: manage.php");

 61:        exit;

 62:    }

 63:    //connect to database

 64:    doDB();

 65:    //check that email is in list

 66:    emailChecker($_POST[email]);

 67: 

 68:    //get number of results and do action

 69:    if (mysql_num_rows($check_result) < 1) {

 70:        //print failure message

 71:        $display_block = "<P>Couldn't find your address!</P>

 72:        <P>No action was taken.</P>";

 73:    } else {

 74:        //unsubscribe the address

 75:        $id = mysql_result($check_result, 0, "id");

 76:        $sql = "delete from subscribers where id = '$id'";

 77:        $result = mysql_query($sql,$conn) or die(mysql_error());

 78:        $display_block = "<P>You're unsubscribed!</p>";

 79:    }

 80: }

 81: ?>

 82: <HTML>

 83: <HEAD>

 84: <TITLE>Subscribe/Unsubscribe</TITLE>

 85: </HEAD>

 86: <BODY>

 87: <h1>Subscribe/Unsubscribe</h1>

 88: <?php echo "$display_block"; ?>

 89: </BODY>

 90: </HTML>


may be long, but it's not complicated. In fact, it could be longer, were it not for the user-defined functions at the top of the script. One of the reasons for creating your own functions is that you know you will be reusing a bit of code and don't want to continually retype it. Lines 3–9 set up the first function, doDB(), which is simply the database connection you've been making in your lessons for a while now. Lines 11–16 define a function called emailChecker(), which takes an input and returns an output—like most functions do. We'll look at this one in the context of the script, as we get to it.

Line 19 starts the main logic of the script. Because this script performs several actions, we need to determine which action it is currently attempting. If the value of $_POST[op] is not "ds", we know the user has not submitted the form; therefore, we must show it to the user. Lines 21–34 create the subscribe/unsubscribe form, using $_SERVER[PHP_SELF] as the action (line 22), creating a text field called email for the user's email address, and setting up a set of radio buttons (lines 28–29) to find the desired task. At this point, the script breaks out of the if...else construct, skips down to line 82, and proceeds to print the HTML. The form is displayed as shown in below










If the value of $_POST[op] is indeed "ds", however, we need to do something. We have two possibilities: subscribe and unsubscribe. We determine which action to take by looking at the value of $_POST[action]—the radio button group.

In line 36, if $_POST[op] is "ds" and $_POST[action] is "sub", we know the user is trying to subscribe. To subscribe, he will need an email address, so we check for one in lines 38–41. If no address is present, the user is sent back to the form.

If an address is present, we call the doDB() function in line 43 to connect to the database because we need to perform a query (or two). In line 45, we call the second of our user-defined functions, emailChecker(). This function takes an input ($_POST[email]) and processes it. If we look back to lines 12–15, we see that the function is checking for an id value in the subscribers table that matches the value of the input. The function then returns the resultset, $check_result, for use within the larger script.

Note: the definition of global variables at the beginning of both user-defined functions in figures. These variables need to be shared with the entire script, and so are declared global.

Jump down to line 48 to see how $check_result is used: The number of records in $check_result is counted to determine whether the email address already exists in the table. If the number of rows is less than 1, the address is not in the list, and it can be added. The record is added and the response is stored in lines 50–52, and the failure message (if the address is already in the table) is stored in line 55. At that point, the script breaks out of the if...else construct, skips down to line 82, and proceeds to print the HTML. You'll test this functionality later.

The last combination of inputs occurs if the value of $_POST[op] is "ds" and $_POST[action] is "unsub". In this case, the user is trying to unsubscribe. To unsubscribe, he will need an email address, so we check for one in lines 59–61. If no address is present, the user is sent back to the form.

If an address is present, we call the doDB() function in line 64 to connect to the database. Then, in line 66, we call emailChecker(), which again will return the resultset, $check_result. The number of records in the resultset is counted in line 69, to determine whether the email address already exists in the table. If the number of rows is less than 1, the address is not in the list, and it cannot be unsubscribed. In this case, the response message is stored in lines 71–72. The user is unsubscribed(the record deleted) and the response is stored in lines 75–77, and the failure message (if the address is already in the table) is stored in line 78. At that point, the script breaks out of the if...else construct, skips down to line 82, and proceeds to print the HTML.

Below figures show the various results of the coded script, depending on the actions selected and the status of email addresses in the database

Developing the Mailing Mechanism

With the subscription mechanism in place, you can create a basic form interface for a script that will take the contents of your form and send it to every address in your subscribers table. This is another one of those all-in-one scripts, called sendmymail.php, and it is shown in above


Listing Send Mail to Your List of Subscribers

>Listing 18.2 Send Mail to
Your List of Subscribers

  1: <?php

  2: if ($_POST[op] != "send") {

  3:    //haven't seen the form, so show it

  4:    print "

  5:    <HTML>

  6:    <HEAD>

  7:    <TITLE>Send a Newsletter</TITLE>

  8:    </HEAD>

  9:    <BODY>

 10:    <h1>Send a Newsletter</h1>

 11:    <form method=\"post\" action=\"$_SERVER[PHP_SELF]\">

 12:    <P><strong>Subject:</strong><br>

 13:    <input type=\"text\" name=\"subject\" size=30></p>

 14:    <P><strong>Mail Body:</strong><br>

 15:    <textarea name=\"message\" cols=50 rows=10 wrap=virtual></textarea>

 16:    <input type=\"hidden\" name=\"op\" value=\"send\">

 17:    <p><input type=\"submit\" name=\"submit\" value=\"Send It\"></p>

 18:    </FORM>

 19:    </BODY>

 20:    </HTML>";

 21:

 22: } else if ($_POST[op] == "send") {

 23:     //want to send form, so check for required fields

 24:     if (($_POST[subject] =="") || ($_POST[message] == "")) {

 25:        header("Location: sendmymail.php");

 26:        exit;

 27:    }

 28: 

 29:    //connect to database

 30:    $conn = mysql_connect("localhost", "joeuser", "somepass")

 31:         or die(mysql_error());

 32:    mysql_select_db("testDB",$conn) or die(mysql_error());

 33: 

 34:    //get emails from subscribers list

 35:    $sql = "select email from subscribers";

 36:    $result = mysql_query($sql,$conn) or die(mysql_error());

 37: 

 38:    //create a From: mailheader

 39:    $headers = "From: Your Mailing List <you@yourdomain.com>\n";

 40:

 41:    //loop through results and send mail

 42:    while ($row = mysql_fetch_array($result)) {

 43:        set_time_limit(0);

 44:        $email = $row['email'];

 45:        mail("$email", stripslashes($_POST[subject]),

 46:             stripslashes($_POST[message]), $headers);

 47:        print "newsletter sent to: $email<br>";

 48:    }

 49: }
The main logic of the script starts right there at line 2, where we determine whether the user has seen the form yet. If the value of $_POST[op] is not "send", we know the user has not submitted the form; therefore, we must show it to her. Lines 4–20 create the form for sending the newsletter, which uses $_SERVER[PHP_SELF] as the action (line 11), creates a text field called subject for the subject of the mail, and creates a textarea called message for the body of the mail to be sent. At this point, thescript breaks out of the if...else construct and the HTML is printed. The form is displayed as in




If the value of $_POST[op] is indeed "send", however, we have to send the form to the recipients. Before we send, we must check for the two required items: $_POST[subject] and $_POST[message]. If either of these items is not present, the user is redirected to the form again.

If the required items are present, the script moves on to lines 30–32, which connect to the database. The query is issued in line 36, which grabs all the email addresses from the subscribers table. There is no order to these results, although you could throw an order by clause in there if you want to send them out in alphabetical order.

Line 39 creates a From: mail header, which is used inside the upcoming while loop, when mail is sent. This header ensures that the mail looks like it is from a person and not a machine. The while loop, which begins on line 42, extracts the email addresses from the resultset one at a time. On line 43, we use the set_time_limit() function to set the time limit to 0, or "no limit." Doing so allows the script to run for as long as it needs to.

Note: Because all the script is execute the mail() function numerous times, it does not take into account the queuing factors in actual mailing list software, which are designed to ease the burden on your outgoing mail server. Using set_time_limit() does not ease its burden; it just allows the script to continue to run when it might have timed out before.

In line 45, the mail is sent using the mail() function, inserting the values from the form where appropriate. Line 46 prints a message to the screen for you, to show who should have received the mail.You can see the outcome of the script.






Note: It is not created by me it is collected by the Sams Teach yourself book, and any problem by this code I and the Blog is not response but it is tested by me no problem enjoy the codes. Any article or other is like same which is copyright Please don’t take any action

Read more..

Increase Your Google Adsense earning by place ads on page

There are mainly two things to increase the Google Adsense earning.

1. First thing are which ads formats gets more earn.
The ‘text linked’ format ads are better then the ‘text and image’ ads and the ‘text and image’ ads is better the image ads.

2. And the second thing is where the ads place in the Website and in Blog.
Most of the peoples in the net see on the left side of the website.


In Website:

  • First-of-all Insert Google Search service in your website on top-right of the webpage.
  • So we can put 120x60 or 120x90 or related size ‘Text linked’ format ads below the Navigate-bar
  • Insert ‘text and image’ format ads in the bottom of the webpage as you like size (450x90,700x90 or other).
  • Insert 250x250 size ‘Text and Image’ ads in right side on your post.


In Blog:

We can select the Blog templates which have the Profile and posts archive list is left side of the Blog. Because most of the people can see left side of the webpage.

  • Insert Google search in Top of Profile or posts archive left-side of the Blog.
  • Insert 120x60 or related size ‘Text linked’ formatted ads in below the Posts archive.
  • Insert 300x200 or like size in top of postings and bottom of the postings like shown on my present Blog.

Your not have the Google adsense Justregister Fallow
Read more..

Oct 8, 2007

Increase Your Website or Blog traffic

Increase Your Website or Blog traffic

Web traffic is the main success for the webmasters for that you must increase the web traffic for your site

1. Step: Submit Your URL address to search engines:

First step to increase the web or blog traffic by submitting Your URL(web or blog address) to the search engines like Google, Yahoo, MSN

Submit Your URL links bu the below links

Google: http://www.google.com/addurl.html

Yahoo!: https://siteexplorer.search.yahoo.com/submit

MSN: http://search.msn.com/docs/submit.aspx

And for more about 40 search engines submit to he following site

www.submitexpress.com

And more sites search on Google or yahoo by fallow “URL submit +websites” or “URL submit +forum” and more

And also submit u the directories like yahoo dir http://dir.yahoo.com/,

Google www.google.com àmore optionsà Directory but some amount is spend for that

Try www.dmoz.org site is the free service directory to the website. I don’t know about this site.

2. Coding the Meta tags on the webpage:

Meta tags are the important and main feature for the websites. Because when the user given the keyword for search result the search engines search in Meta tags of the WebPages in websites.

Meta tags are easy to create following the code:

Title of Your Site

3. Step: Creating RSS or ATOM feeds and Newsletter subscription:


Newsletter subscription is another important feature to the website. From this the visitors and your customers become upto-date with your website.

You can create your own Newsletter subscription page. You have just basic knowledge on the Scripting like PHP, and DATABASE like MYSQL for best practice visit the site www.PHP.net àdocumentation for the documentation or follow the code (it is not created by me it is collected form the sams teach yourself PHP,MYSQL and apache on online).

(OR)

To create newsletter service is easy by visiting the third-party http://www.feedblitz.com. On the site create a account on the site and copy the code which is given by that and past it on your blog or website. And You can see like below

When the user entire E-mail address in the form he can receive the newsletters from your site with the help or involving the third party (www.feedblitz.com)

Another thing is create feeds. Form this visitor or customer become upto-date with your site.

It is also a simple to create by visiting third-party www.feedburner.com just register on the site copy the code which it was given and past the code your webpage. The www.Blogger.com users have direct service with this site settingsà feed and fallow the steps.

4. Step: Submitting the article to the popular article sites


One of the best steps is submitting the article to the popular article sites like

www.articlecity.com,

www.ezinearticles.com,

www.inare.com,

http://www.ultimatearticledirectory.com/

http://www.submityourarticle.com/ is the best article submitting site but some little amount is spend for that. It submits to 1000’s of sites and publishers and more.

www.wikipedia.org is the best free article publishing site you can submit your article to this site. It has high range traffic.

You want to spend a little amount for your web traffic try better advertise on low cost sites. For best example is spend money advertise your site on Google adwords.

5. Step: Posting on forum and create your own forum:

It is also a best step to post the articles in the forums like Orkut because it as a very high traffic and lakes of people visits the site.

It is good think when compare with posting on another forum is creating your own forum in your website. It is very useful for online support for your customers and the visitors. From this you can get the rich quality and good amount of traffic.

6. Tell-A-Friend or family (TAF):

Tell a friend or family is the best and free way to increase the web traffic. For creating the TAF you have the Basic knowledge on Scripts and DATABASE like PHP and MYSQL. PHP is the best scripting language and you want best practice visit the www.PHP.net àdocuments. It is a free online documentation.

7. Step: Link Exchange:

Link exchange free and little best and free. It means you can exchange the links with another sites. Your link is on another site and another site link (Which your site link is on another site) is in your site. For best result search “Link exchange +web”, “link exchange + forum”.

Oct 2, 2007

Firefox-recover Your Browser without reinstall

Firefox-recover Your Browser without reinstall

Without Firefox You don't live on internet.But firefox becomes slowdown and raises the errors When you try to recover the firefox you can disenable the all the ADD-IN clear the catches and more. But there is a trick recover u r firefox in fallow by 2 steps Step 1: Backup Your Book makes Step 2: Click Run Option on Start menu Type ("c:\Program files\Mozilla Firefox\Firefox.exe"-P) a window is open on the window click Create Profile option and name the profile after creating the name to profile select u created profile and click the star option in the u can see the recovered browser.It is a new browser like newly installed and lastly import the Bok Makes and Liver in Internet with Firefox
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