jQuery+PHP implémente l'effet de notation par étoiles couramment utilisé dans les centres commerciaux

function get_rate(rate) { 
    rate = rate.toString(); 
    var s; 
    var g; 
    $("#g").show(); 
    if (rate.length >= 3) { 
        s = 10; 
        g = 0; 
        $("#g").hide(); 
    } else if (rate == "0") { 
        s = 0; 
        g = 0; 
    } else { 
        s = rate.substr(0, 1); 
        g = rate.substr(1, 1); 
    } 
    $("#s").text(s); 
    $("#g").text("." + g); 
    $(".big_rate_up").animate({ 
        width: (parseInt(s) + parseInt(g) / 10) * 14, 
        height: 26 
    }, 
    1000); 
    $(".big_rate span").each(function() { 
        $(this).mouseover(function() { 
            $(".big_rate_up").width($(this).attr("rate") * 14); 
            $("#s").text($(this).attr("rate")); 
            $("#g").text(""); 
        }).click(function() { 
            var score = $(this).attr("rate"); 
            $("#my_rate").html("您的评分：<span>" + score + "</span>"); 
            $.ajax({ 
                type: "POST", 
                url: "ajax.php", 
                data: "score=" + score, 
                success: function(msg) { 
                    //alert(msg); 
                    if (msg == 1) { 
                        $("#my_rate").html("<span>您已经评过分了！</span>"); 
                    } else if (msg == 2) { 
                        $("#my_rate").html("<span>您评过分了！</span>"); 
                    } else { 
                        get_rate(msg); 
                    } 
                } 
            }); 
        }) 
    }) $(".big_rate").mouseout(function() { 
        $("#s").text(s); 
        $("#g").text("." + g); 
        $(".big_rate_up").width((parseInt(s) + parseInt(g) / 10) * 14); 
    }) 
}

get_rate(<?php echo $aver; ?>);

$score = $_POST['score']; 
if (isset($score)) { 
    $cookiestr = getip(); 
    $time = time(); 
    if (isset($_COOKIE['person']) && $_COOKIE['person'] == $cookiestr) { 
        echo "1"; 
    } elseif (isset($_COOKIE[&#39;rate_time&#39;]) && ($time - intval($_COOKIE[&#39;rate_time&#39;])) < 60) { 
        echo "2"; 
    } else { 
        $query = mysql_query("update raty set voter=voter+1,total=total+&#39;$score&#39; where id=1"); 
        $query = mysql_query("select * from raty where id=1"); 
        $rs = mysql_fetch_array($query); 
        $aver = 0; 
        if ($rs) { 
            $aver = $rs[&#39;total&#39;] / $rs[&#39;voter&#39;]; 
            $aver = round($aver, 1) * 10; 
        } 
        //设置COOKIE 
        setcookie("person", $cookiestr, time() + 3600 * 365); 
        setcookie("rate_time", time(), time() + 3600 * 365); 
        echo $aver; 
    } 
}

CREATE TABLE IF NOT EXISTS `raty` (  
   `id` int(11) NOT NULL auto_increment,  
   `voter` int(10) NOT NULL default '0' COMMENT '评分次数',  
  `total` int(11) NOT NULL default '0' COMMENT '总分',  
   PRIMARY KEY  (`id`)  
 ) ENGINE=MyISAM  DEFAULT CHARSET=utf8;