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php sample source codes
Simple example of how to add comments to your pages not unlike the user's annotated manual at http://www.php.net/ You may want to use URLs as a key instead of productid to be even more like PHP's annotation facility. Untested code off the top of my head: CREATE table comments( productid int4, comment text ); product.php3 <?php $productid = 42; $product_name = 'widget'; echo "<A HREF=comment.php3?productid=$productid>Comments</A> about $product_name<BR>\n"; $comments = mysql_query("select comment from comments where productid = $productid") or die(mysql_error()); while (list($comment) = mysql_fetch_row($comments)){ echo $comments, "<HR>"; } ?> comment.php3 <?php if (isset($submit)){ mysql_query("INSERT into comments(productid, comment) values($productid, '$comments')") or die(mysql_error()); echo "Thank you for your comment.<BR>\n"; } ?> <FORM ACTION=comment.php3 METHOD=POST> <TEXTAREA NAME=comments WRAP=VIRTUAL></TEXTAREA><BR> <INPUT TYPE=SUBMIT NAME=submit> </FORM>
Revised Feedback form with cookies <?php // Beginning php // Saving the page header in the variable $head. $head = "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML//EN\"><HTML><HEAD><TITLE>Feedback form</title></HEAD><BODY BGCOLOR=\"blue\"><H1 ALIGN=CENTER><FONT COLOR=white>Feedback form</FONT></h1>"; // End of page header // Saving the page footer in the variable $tail. $tail = "<HR></BODY></HTML>"; // End of page footer // Set up variables that will be saved in the cookies // Define unique cookie prefix $ID = "Steves_Cookie"; // Cookie lifetime in seconds (in this example, three days) $cookie_life = 30243600; // Name of cookie that holds the user's name $n_name = $ID . "_Name"; // Name of cookie that holds the user's email $n_email = $ID . "_Email"; // Name of cookie that holds the user's last login $n_last = $ID . "_Last"; // These lines print the form with user input and mails to the webmaster. if( isset($sfeedback)) { Setcookie($n_last,Date("H:i d/m/Y"),time()+$cookie_life); print $head; ?> <FONT COLOR=white><B>Thanks for your feedback,<FONT COLOR=white> <?php print $name ?>. Here is what you said:</B><FONT COLOR=white><br> <FONT COLOR=white>Name: <?php print $name ?></FONT><br> <FONT COLOR=white>Email: <?php print $email ?></FONT><br> <FONT COLOR=white>Feedback: <?php print $feedback ?></FONT><br> <?php // Mails the feedback to the webmaster. $subject = "Feedback from your site"; $sendto = "webmaster@site.com"; $header = "From: $email"; mail($sendto, $subject, ( " $name " . from . " $email " . " said on : " . $$n_last . "\n\n" . $feedback ), $header); print "<FONT COLOR=white>Thank you. Your comments have been sent to the webmaster</FONT>\n"; // Print end and leave print $tail; exit(); } // This loop treats users who have not been to the site before. if(!$$n_last) { if( ! isset($name)) { // if no name - display the form print $head; ?> <B>Welcome to the cookie tester! Please fill in the following information:</B> <!-- $PHP_SELF is the PHP way of referring to the current page --> <FORM ACTION="<?php print $PHP_SELF ?>" METHOD="POST"> Name: <input type="text" name="name"><br> Email: <input type="text" name="email"><br> <!-- Submit button --> <input type=submit value="Submit"></form> <?php print $tail; exit; } else { // Set cookies and continue Setcookie($n_name,$name,time()+$cookie_life); Setcookie($n_email,$email,time()+$cookie_life); $$n_name = $name; $$n_email = $email; } } // This loop treats repeat users. Setcookie($n_last,Date("H:i d/m/Y"),time()+$cookie_life); print $head; ?> <FONT COLOR=white><B>Welcome back to our cookie tester, <?php print $$n_name ?></B></FONT>. <?php // Have previous login if($$n_last) print "<FONT COLOR=white><B>Your last login was on " . $$n_last . ".</B></FONT>"; // User fills in feedback form ?> <form action="<?php print $PHP_SELF ?>" method="POST"> <FONT COLOR="white"><B>Name: <input type="text" name="name" value="<?php print $$n_name ?>"></B></FONT><br> <FONT COLOR="white"><B>Email: <input type="text" name="email" value="<?php print $$n_email ?>"></B></FONT><br> <FONT COLOR="white"><B>Feedback:</B></FONT><br> <textarea name="feedback" wrap=virtual cols=40 rows=5> </textarea> <br><br> <!-- Submit button --> <input type=submit value="Submit" name="sfeedback"> </form> <?php print $tail ?>
a short example of how to use pear's nntp class to read from newsgroups (usenet), since the documentation on pear's site suxx. <?php require_once("net/NNTP.php"); define ("USENET_URL", "news.php.net"); $nntp = new Net_NNTP; $ret = $nntp->connect(USENET_URL); if( PEAR::isError($ret)) { // handle error echo "error : ".$ret->getMessage()."<br>"; } else { // success if (isset($messageid)) { $headers = $nntp->splitHeaders($messageid); echo "<b>".$headers["Subject"]."</b> "; echo "<a href=\"?group=".$group."\">up</a><br>"; $body = $nntp->getBody($messageid); echo nl2br($body); } else if (isset($group)) { echo "<b>".$group."</b> "; echo "<a href=\"?\">up</a><br>"; // print all messages $data = $nntp->selectGroup($group); $msgs = $nntp->getOverview($data["first"], $data["last"]); foreach($msgs as $msg) { // print subjects echo "    "."<a href=\"?messageid=".$msg["Message-ID"]."&group=".$group."\">"; echo $msg["Subject"]."</a><br>"; } } else { // Print a list of avaible newsgroups $groups = $nntp->getGroups(); foreach($groups as $group) { echo "<b><a href=\"?group=".$group["group"]."\">"; echo $group["group"]." : ".$group["desc"]; echo "</a></b><br>"; } } $nntp->quit(); } ?>

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