清晨

PHP判断字符串函数,俄文中文数字检测

PHP俄文检测,俄罗斯文字检测

function checkStr($str){
        $stat=true;
        $a=ereg('['.chr(0xa1).'-'.chr(0xff).']', $str); //汉字
        $a2=preg_match("/[x{4e00}-x{9fa5}]./u",$str);//中文(过滤俄文,中文包含俄文)
        $b=ereg('[0-9]', $str); //数字
        $c=ereg('[a-zA-Z]', $str); //字母
        if($a2 && $b && $c){ $stat=false;} //$output='汉字数字英文的混合字符串';
        elseif($a2 && $b && !$c){ $stat=false;} //$output='汉字数字的混合字符串';
        elseif($a2 && !$b && $c){ $stat=false;} //$output='汉字英文的混合字符串';
        elseif(!$a2 && $b && $c){ $stat=true;} //$output='数字英文的混合字符串';
        elseif($a2 && !$b && !$c){ $stat=false;} //$output='纯汉字';
        elseif(!$a2 && $b && !$c){ $stat=true;}  //$output='纯数字';
        elseif(!$a2 && !$b && $c){ $stat=true;}  //$output='纯字母';
        else{$stat=true;}
        return $stat; 
    }

这些方法对于 XML 文档和 HTML 文档均是适用的，除了：html()。

例子

          $("#imgcode").empty();
          $("#imgcode").append('<img src="https://ntz.me/qr.php?url=https://ntz.me/'+code+'" style="width:100px;height:100px;" />');

CSS实现动态边框效果

html代码

<a href="https://www.shadoweb.cn/news/?type=detail&amp;id=24" target="_blank"><img src="https://www.shadoweb.cn/news/common/upload/2018/08/14/04831T5.jpg" alt="谷歌推ads.txt解决方案，重拳打击虚假广告"><span class="line-effect"><span></span></span>
</a>

CSS代码

/* line-effect */
.line-effect {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
opacity:0.5;
filter:Alpha(opacity=50);
}
.line-effect:after,
.line-effect:before,
.line-effect span:after,
.line-effect span:before {
    content: "";
    display:block;
    position:absolute;
    background-color:#606060;
    z-index:3
}
.line-effect:after,
.line-effect:before {
    width:  0;
    height: 6px;
    -webkit-transition:.15s ease-in;
    -o-transition:.15s ease-in;
    transition:.15s ease-in
}
.line-effect:before {
    top:0;
    left:0
}
.line-effect:after {
    bottom:0;
    right:0
}
.line-effect:hover:after,
.line-effect:hover:before {
    width: 100%;
}
.line-effect span:after,
.line-effect span:before {
    width: 6px;
    height: 0;
    -webkit-transition:.15s ease-in-out;
    -o-transition:.15s ease-in-out;
    transition:.15s ease-in-out;
    -webkit-transition-delay:.2s;
    -o-transition-delay:.2s;
    transition-delay:.2s
}
.line-effect span:before {
    bottom:0;
    left:0
}
.line-effect span:after {
    top:0;
    right:0
}
.line-effect:hover span:after,
.line-effect:hover span:before {
    height: 100%;
}

CSS实现中间向两边滑动下划线效果

html代码

<a class="link" href="https://wdja.cn">WDJA网站内容管理系统</a>

css代码

.link::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: #000;
  visibility: hidden;
  -webkit-transform: scaleX(0);
  -moz-transform: scaleX(0);
  -ms-transform: scaleX(0);
  -o-transform: scaleX(0);
  transform: scaleX(0);
  transition-duration: 0.2s;
  transition-timing-function: ease-in-out;
  transition-delay: 0s;
}
.link:hover::before {
  visibility: visible;
  -webkit-transform: scaleX(1);
  -moz-transform: scaleX(1);
  -ms-transform: scaleX(1);
  -o-transform: scaleX(1);
  transform: scaleX(1);
}

PHP判断整除

可以被2整除,通常用于输出数组时判断

<?php
if (!($i % 2) && $i)
?>

或者

if($i%2 == 0){//取余  若结果为0代表能够整除

html代码

<a href="https://wdja.cn">
    <button>
        查看详情<span>→</span>
    </button>
</a>

css代码

a {
    display: block;
    padding: 8% 0 10%;
}
a button {
    overflow: hidden;
    position: relative;
    display: inline-block;
    width: 130px;
    padding: 18px 15px;
    border: 1px solid #1c2020;
    border-radius: 4px;
    font-size: 12px;
    line-height: 0;
    z-index: 1;
    background: none;
    text-align: left;
    font-family:  'MS PGothic', arial, helvetica, sans-serif;
    cursor: pointer;
}

a:hover button::before {
    width: 110%;
    transition: all 0.2s ease-in-out;
    z-index: -1;
}
a button::before {
    background: #1c2020;
    content: "";
    position: absolute;
    left: -10px;
    top: 0px;
    height: 100%;
    width: 0;
    transition: all 0.2s ease-in-out;
    z-index: -1;
}

通过设置原始宽度为0,鼠标覆盖时,设置宽度100.同时设置动画时间.实现