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POJQuery & PHP - How to display and get the average rate and votes casted?
 

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  1. POJQuery & PHP - How to display and get the average rate and votes casted?
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    <p>I'm trying to display the average rate and how many votes have been casted but I really don't know how to do it. </p> <p>I need help on how to display something like this <code>Rating. 4.83/5 (6725 vote cast)</code> under the star rating? But I really don't know how to do this or what to add or change?</p> <p>Here is the JavaScript below.</p> <pre><code>// JavaScript Document $(document).ready(function() { // get current rating getRating(); // get rating function function getRating(){ $.ajax({ type: "GET", url: "update.php", data: "do=getrate", cache: false, async: false, success: function(result) { // apply star rating to element $("#current-rating").css({ width: "" + result + "%" }); }, error: function(result) { alert("some error occured, please try again later"); } }); } // link handler $('#ratelinks li a').click(function(){ $.ajax({ type: "GET", url: "update.php", data: "rating="+$(this).text()+"&amp;do=rate", cache: false, async: false, success: function(result) { // remove #ratelinks element to prevent another rate $("#ratelinks").remove(); // get rating after click getRating(); }, error: function(result) { alert("some error occured, please try again later"); } }); }); }); </code></pre> <p><br /></p> <p>And here is the php script below.</p> <p><br /></p> <pre><code>&lt;?php // connect to database $dbh=mysql_connect ("localhost", "root", "", "sitename") or die ('Cannot connect to the database'); mysql_select_db ("sitename",$dbh); if($_GET['do']=='rate'){ // do rate rate(); }else if($_GET['do']=='getrate'){ // get rating getRating(); } // function to retrieve function getRating(){ $sql= "select * from vote"; $result=@mysql_query($sql); $rs=@mysql_fetch_array($result); // set width of star $rating = (@round($rs[value] / $rs[counter],1)) * 20; echo $rating; } // function to insert rating function rate(){ $text = strip_tags($_GET['rating']); $update = "update vote set counter = counter + 1, value = value + ".$_GET['rating'].""; $result = @mysql_query($update); if(@mysql_affected_rows() == 0){ $insert = "insert into vote (counter,value) values ('1','".$_GET['rating']."')"; $result = @mysql_query($insert); } } ?&gt; </code></pre> <p>Here is my MySQL table.</p> <pre><code>CREATE TABLE IF NOT EXISTS `vote` ( `counter` int(8) NOT NULL default '0', `value` int(8) NOT NULL default '0' ) </code></pre> <p>Here is the rating display markup below.</p> <pre><code>&lt;ul class='star-rating'&gt; &lt;li class="current-rating" id="current-rating"&gt;&lt;!-- will show current rating --&gt;&lt;/li&gt; &lt;span id="ratelinks"&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="1 star out of 10" class="one-star"&gt;1&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="2 stars out of 10" class="two-stars"&gt;2&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="3 stars out of 10" class="three-stars"&gt;3&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="4 stars out of 10" class="four-stars"&gt;4&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="5 stars out of 10" class="five-stars"&gt;5&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="6 stars out of 10" class="six-star"&gt;6&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="7 stars out of 10" class="seven-stars"&gt;7&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="8 stars out of 10" class="eight-stars"&gt;8&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="9 stars out of 10" class="nine-stars"&gt;9&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="javascript:void(0)" title="10 stars out of 10" class="ten-stars"&gt;10&lt;/a&gt;&lt;/li&gt; &lt;/span&gt; &lt;/ul&gt; </code></pre>
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