Table of Contents
PHP实现的多彩标签效果代码分享,php实现标签代码
谁有网页中实现幻灯片效果的php代码
怎用javascript为网页的DIV标签添加PHP代码?
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PHP实现的多彩标签效果代码分享,php实现标签代码

Jun 13, 2016 am 09:26 AM
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PHP实现的多彩标签效果代码分享,php实现标签代码

目前,大家的博客左侧通常加上一个漂亮的多彩标记,也想给自己的小站加一下这个小功能。

可惜已经再不再是使用WordPress的时候那么方便了,使用WordPress的朋友们直接使用现成的插件,鼠标点点就可以加上这个炫彩的功能。小站程序是自个写的,要加这么一个功能还是得自己动手,就当学习吧!

首先,我分析了一下目前多彩标签的主要表现形式,主要有两点:颜色多样,大小不一。这个是多彩标签的特性,于是想到了PHP中的随机函数rand。直接给大小,颜色用rand随机取值就可以。

大小的随机值容易搞定,直接生成后连接单位即可

复制代码 代码如下:


// 随机大小实例
$m = rand(20,30);
echo '随机大小';
?>


生成颜色值稍微麻烦一些,因为颜色值是十六进制字符表现形式,而随机函数rand不能直接生成 0 到 F 这么用,最后直接用数组保存十六进制字符,然后随机生成鼠标下标这样也可以实现随机颜色

复制代码 代码如下:


// 随机颜色函数
// 直接返回随机生成的色值
function getColor(){
        // 先用数组把十六进制字符保存在一个数组中
    $arr = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');
 
        // 因为颜色色值长度是6位,所以循环6次
    for($i=0;$i                 // 随机生成0到15数字,然后当作数组下标取值即可
        $color .= $arr[rand(0,15)];
    }
 
        // 返回的时候,把#号加上
    return ‘#'.$color;
}
?>


随机大小,随机颜色搞定后剩下的都不是问题的问题了。直接取出所有标签然后去重,然后遍历数组生成HTML文本即可。

最后提点建议,毕竟PHP是服务器端,每次都rand会让服务器鸭梨不小(那些特牛的机器可以忽略不计,毕竟目前用VPS的还是众多)。我们可以在博客的标签在发生变动的时候再生成即可,比如删除,修改,增加文章产生新的标签时候我们再去生成多彩标签的HTML文本。最后这些生成的多彩签HTML没必要存进数据库,直接保存在在一个文件里,然后include即可。

目前,我的小站就是这么实现的。有空,我再介绍JavaScript实现多彩标签,原理也差不多一样,只不过是JavaScript是客户端行为,不用担心服务器端的鸭梨,而且JavaScript交互性比较好,可以制作出具有动画效果的云标签。

谁有网页中实现幻灯片效果的php代码

那是js+html标签+css或者js+flash的效果,
代码百度一下,不好用或者不适合,自己再改进一下!
别人给你的其实都不是完美适合你,因为不是专门为你而生的。。。。。
那你当然要根据自己的需要改成适合自己的啊。。。。。
 

怎用javascript为网页的DIV标签添加PHP代码?

这种是不可能的。PHP是在生成页面之前执行,而javascript是在生成之后执得。你用浏览器打开的页面实际上是看不到 include.... 这些 PHP 代码的,看到的是PHP执行之后的结果。
要实现你说的这种有两个办法:
一是新建一个单独的页面,用来包括2.php,然后在执行outmsg()的地方直接转到这个新页面。
二是在当前这个页面上加一个参数,在PHP中用$_REQUEST['参数名字']来获取,再用if判断,如果有参数,则include 2.php,否则include 1.php。在当前的页面执行outmsg()的时候就用一个表单提交到当前页面,把这个参数加上。
 

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