PHP Web Hosting, Tomcat, JSP, J2EE, Servlets, Struts - PHP4, PHP5 Programming Blog

$message = This is a Multipart Message in MIME formatn ; $message .= –$boundaryn ; $message .= Content-type: text/html; charset=iso-8859-1n ; $message .= Content-Transfer-Encoding: 7bitnn ; $message .= $confirmmessage . n ; $message .= –$boundaryn ; $message .= Content-Type: text/plain; charset= iso-8859-1 n ; $message .= Content-Transfer-Encoding: 7bitnn ; $message .= $textconfirm . n ; $message .= –$boundary– ; The variable $confirmmessage is the HTML version of the confirmation e-mail. The variable $text confirm is the plain-text version. The variable $message is the entire message, coded to send both plain and HTML e-mails. Note where you insert the $confirmmessage and $textconfirm variables in the multipart message. Finally, the following sends the e-mail. Don t be confused by the variable $from. That actually controls who this e-mail is being sent to. That s the whole idea behind sending out this confirmation e-mail. $mailsent = mail($from, $confirmsubject, $message, $headers); When the user receives the confirmation e-mail, there is a link at the bottom: $confirmmessage .= Click here to confirm ; When the user clicks the link, confirmmail.php is loaded in his or her browser, appended with ?id= plus the unique validation ID. This is used within confirmmail.php to access the proper postcard in the database, compose the e-mail, and send it on its way. A quick reminder: If you always set your variables like this, you never have to worry about the register_globals setting in your php.ini file. $id = $_GET[ id ]; The following gets all postcards that match your ID. Of course, there should always be just one match, because $id is unique. $sql = SELECT * FROM confirm WHERE validator = $id ; The array $pcarray contains all of the postcard data you need to send the postcard to its intended recipient: $query = mysql_query($sql, $conn) or die(mysql_error()); $pcarray = mysql_fetch_array($query); Here s a little insurance to make sure you don t try to send out a postcard if no postcard data exists. (Of course, you will think of a much more elegant error message, won t you?) This might be a good place for the PHP header() function to redirect the user to a more information error page. if (!is_array($pcarray)) { echo Oops! Nothing to confirm. Please contact your administrator ; exit; } 353 Sending E-mail
Searching for affordable and reliable webhost to host and run your web applications? Go to our java web server services and you will be pleased.

However, to ensure that you get the first value in the $postcard array regardless of the key, you use the foreach() loop. You must use the if statement because if there is no $postcard array, foreach() returns an invalid argument warning. Yes, we know that currently a postcard value is always posted to the sendconf.php page, but if you make a change to postcard.php (for instance, to make the postcard image optional), you don t want sendconf.php to break, right? Let s move on. Your sendconf.php script performs an extra step you did not take care of in sendmail.php. You must temporarily store the postcard data while you await confirmation. $temp = gettimeofday(); $msec = (int) $temp[ usec ]; $msgid = md5(time() . $msec); Note the use of a new PHP function, md5().This returns a 128-bit fingerprint, or hash, of the message passed to it. For example, the md5 hash of Hello World is b10a8db164e0754105b7a99be72e3fe5. It is designed as a one-way encryption of the data passed in to it, so you cannot reverse it to discover the original value. Using a one-way hash in this manner allows you to safely have the user click on a link in their e-mail to view their postcard. If you had used a simple number or keyword, a malicious user could more easily guess the URL, and ruin all your fun guessing an md5 hash would take too long to make it worthwhile for the hacker. By passing in a time value, you can be fairly certain that the md5 hash returned will be a unique value, which you use as a unique ID for the data. It is not 100 percent guaranteed to be unique, but because it is generated based on the current time in seconds and contains 32 alphanumeric characters, you can be reasonably sure it will be unique. If you are interested in finding out more information about the md5 hash, visit RFC 1321: The MD5 Message-Digest Algorithm at www.faqs.org/rfcs/rfc1321. require( ./includes/conn_comic.php ); $sql = INSERT INTO confirm (validator, to_email, toname, from_email, . fromname, bcc_email, cc_email, subject, postcard, message) . VALUES ( $msgid , $to , $toname , $from , . $fromname , $bcc , $cc , $subject , $postcard , $messagebody ) ; $query = mysql_query($sql, $conn) or die(mysql_error()); Next, you store the postcard data temporarily until it is validated. When the user clicks the confirmation link in the e-mail to send it, the postcard is sent on to its intended recipient. $confirmsubject = Please Confirm your postcard ; $confirmmessage = Hello . $fromname . ,nn ; $confirmmessage .= Please click on the link below to confirm that . you would like to send this postcard:nn ; $confirmmessage .= $html_msg . nn ; $confirmmessage .= Click here to confirm ; $textconfirm = Hello . $fromname . ,nn ; $textconfirm .= Please visit the following URL to confirm your . postcard:nn ; $textconfirm .= http://localhost/bp5am/ch11/confirm.php . ?id= $msgid ; 352 Chapter 11
Please visit Domain Name Hosting services for high quality webhost to host and run your jsp applications.

Next you loop through the $images array, constructing the rest of your HTML select tag (options). The $image_url variable is set to the default image s URL: while ($imagearray = mysql_fetch_array($images)) { $iloop++; $iurl = $imagearray[ img_url ]; $idesc = $imagearray[ img_desc ]; if ($iloop == 1) { echo $idescn ; $image_url = $imagearray[ img_url ]; } else { echo $idescn ; } } ?> Then you place the default image on the page, just below the select box. You are going to use JavaScript to change this image whenever the user selects a different postcard from the select box. You could use PHP to do this instead, but it would reload the page every time you changed the image. Using JavaScript in this situation helps you reduce loading time and round-trips to the server. width=320 height=240 border=0 id= postcard > What follows, of course, is the JavaScript function that changes the image. It should be pretty selfexplanatory if you know JavaScript. If you don t know JavaScript, this is the JavaScript function that changes the image. If you want to know more about JavaScript, you can buy JavaScript For Dummies, Third Edition, by Emily A. Vander Veer (Wiley, 2000). Now you move on to sendconf.php. Much of it is similar to sendmail.php, so we ll just touch on some of the more important points: if (!empty($_POST[ postcard ])) { foreach($_POST[ postcard ] as $value) { $postcard = $value; } } Remember, $postcard is an array. A simpler method of getting the value of the postcard would have been to use the 0 key of the $postcard array: $postcard = $_POST[ postcard ][0]; 351 Sending E-mail
We recommend high quality webhost to host and run your jsp application: christian web host services.

By now, you should be fairly familiar with using PHP to access MySQL. The file db_makeconfirm.php is pretty standard: $sql = <<

Next is a simple select statement. It will be followed by PHP code that builds the list of postcards the user will be able to select from. Note the square brackets after postcard[]. These are required so that PHP is able to access the $postcard variable as a proper array:
You then connect to the MySQL server and open a connection to the postcard database: include( ./includes/conn_comic.php ); This gets all image data and puts it into the $images array: $sql = SELECT * FROM images ORDER BY img_desc ; $images = mysql_query($sql, $conn) or die(mysql_error()); You are tracking $iloop; if $iloop is set to 1, the first option tag will be selected by default on the form. This assures you that when the page first loads, you ll see a postcard. $iloop = 0; 350 Chapter 11
From our experience, we can recommend PHP Web Hosting services, if you need affordable webhost to host and run your web application.

Posted in php | No Comments »

Figure 11-9 How It Works Your (Web site translator) application is

Friday, November 23rd, 2007

Figure 11-9 How It Works Your application is getting more complex. However, it is still fairly basic in its functionality. Here s what it does: . The user loads postcard.php and fills out all the fields. He or she also selects a postcard to be sent. In the From field, the user enters his or her e-mail address. . After clicking Send, the user receives an e-mail showing him or her what the postcard and message look like. A link is provided at the bottom of the e-mail asking the user to click to confirm the postcard. . Once the user clicks the confirmation link, the postcard is sent to the intended recipient. 349 Sending E-mail
Searching for affordable and proven webhost to host and run your servlet applications? Go to Linux Web Hosting services and you will find it.

Posted in php | No Comments »

10. Check your e-mail. You should receive an (Web hosting compare)

Thursday, November 22nd, 2007

10. Check your e-mail. You should receive an e-mail that looks something like Figure 11-8. Note the text attachment; this is the part of the e-mail that users would see if their e-mail client did not support HTML. They would see something similar to this: Hello Grebnok, Please visit the following URL to confirm your postcard: http://localhost/bp5am/ch11/confirm.php?id=8d3ba748a0aea409fd6b6005be67f262 Figure 11-8 11. Click the link at the bottom of the e-mail to confirm that you want to send the postcard. 12. Open the e-mail account this postcard was sent to (see Figure 11-9). You did send it to an e-mail address you have access to, right? If you sent this to your little sister, we sure hope you didn t scare her! 348 Chapter 11
Check Tomcat Web Hosting services for best quality webspace to host your web application.

Posted in php | No Comments »

8. Enter the appropriate data; remember to put (Managed web hosting)

Wednesday, November 21st, 2007

8. Enter the appropriate data; remember to put in your valid e-mail address in the From: email field. 9. In the Choose a Postcard field, select a postcard from the drop-down list, enter a message, and click the Send button. A screen similar to the one shown in Figure 11-7 loads. Figure 11-7 347 Sending E-mail
Searching for affordable and reliable webhost to host and run your web applications? Go to our java web server services and you will be pleased.

Posted in php | No Comments »

$html_msg .= ; $html_msg .= Greetings, $toname! ; $html_msg (Kids web site)

Tuesday, November 20th, 2007

$html_msg .=

; $html_msg .=

Greetings, $toname! ; $html_msg .=

; $html_msg .= $fromname has sent you a postcard today. Enjoy! ; $html_msg .=

; $html_msg .= ; $html_msg .=

; $html_msg .= $messagebody . n ; $html_msg .=

; echo << $html_msg EOD; ?> 7. Load postcard.php in your browser to verify that it works. The results should look similar to what s shown in Figure 11-6. Figure 11-6 346 Chapter 11
We highly recommend you visit web and email hosting services if you need stable and cheap web hosting platform for your web applications.

Posted in php | No Comments »

$message .= Content-Type: text/plain; charset= iso-8859-1 n ; $message .= Content-Transfer-Encoding: (Free web hosting with ftp)

Monday, November 19th, 2007

$message .= Content-Type: text/plain; charset= iso-8859-1 n ; $message .= Content-Transfer-Encoding: 7bitnn ; $message .= $messagebody . n ; $message .= –$boundary– ; $mailsent = mail($to, $subject, $message, $headers); ?>

; echo To: $to
; echo From: $from
; echo Subject: $subject
; echo Message:
; echo $html_msg; } else { echo There was an error… ; } ?> 6. Next you ll create a form that allows a user to view the postcard. Call this one viewpostcard.php. (Funny how the name matches the functionality, isn t it?) The great thing about viewpostcard. php is that most of it is very similar to confirm.php. Yes, now you get to cannibalize some of your own code! In case you need quality webspace to host and run your web applications, try our personal web hosting services.

Posted in php | No Comments »

$html_msg .= Greetings, $toname! ; $html_msg (Web site hosting) .= ; $html_msg

Saturday, November 17th, 2007

$html_msg .=
Greetings, $toname! ; $html_msg .= ; $html_msg .= $fromname has sent you a postcard today.
Enjoy! ; $html_msg .= ; $html_msg .= ; $html_msg .= ; $html_msg .= $messagebody . n ; $html_msg .=

; $temp = gettimeofday(); $msec = (int) $temp[ usec ]; $msgid = md5(time() . $msec); require( ./includes/conn_comic.php ); $sql = INSERT INTO confirm (validator, to_email, toname, from_email, . fromname, bcc_email, cc_email, subject, postcard, message) . VALUES ( $msgid , $to , $toname , $from , . $fromname , $bcc , $cc , $subject , $postcard , $messagebody ) ; $query = mysql_query($sql, $conn) or die(mysql_error()); $confirmsubject = Please Confirm your postcard ; $confirmmessage = Hello . $fromname . ,nn ; $confirmmessage .= Please click on the link below to confirm that . you would like to send this postcard:nn ; $confirmmessage .= $html_msg . nn ; $confirmmessage .= Click here to confirm ; $textconfirm = Hello . $fromname . ,nn ; $textconfirm .= Please visit the following URL to confirm your . postcard:nn ; $textconfirm .= http://localhost/bp5am/ch11/confirm.php . ?id=$msgid ; $message = This is a Multipart Message in MIME formatn ; $message .= –$boundaryn ; $message .= Content-type: text/html; charset=iso-8859-1n ; $message .= Content-Transfer-Encoding: 7bitnn ; $message .= $confirmmessage . n ; $message .= –$boundaryn ; $message .= Content-Type: text/plain; charset= iso-8859-1 n ; $message .= Content-Transfer-Encoding: 7bitnn ; $message .= $textconfirm . n ; $message .= –$boundary– ; $mailsent = mail($from, $confirmsubject, $message, $headers); if ($mailsent) { echo Here is the postcard you wish to send.
; echo A confirmation e-mail has been sent to $from.
; echo Open your e-mail and click on the link to confirm that you would like to send this postcard to $toname.

; echo Subject: $subject
; echo Message:
; echo $html_msg; } else { echo There was an error sending the email. ; } ?> 343 Sending E-mail
We highly recommend you visit web and email hosting services if you need stable and cheap web hosting platform for your web applications.

Posted in php | No Comments »

« Previous Entries