php - 使用 php 在 css 中搜索特定类

Question

我正在将 flaticon 用于网络元素。我必须在 div 中显示文件 flaticonicon.css 中的所有图标。

所以我必须推断 flaticonicon-add121 ， flaticonicon-alarm57 ， flaticonicon-appointment 等等

为此我编写了以下代码

    $handle = @fopen("flaticonicon.css", "r");
    $a = 0;
    if ($handle) {
        while (($buffer = fgets($handle, 4096)) !== false) {

            if (strpos($buffer,':before') !== false) {
                $a++;
                if($a > 1 && $buffer[0] != "}"){

                    $c = preg_split("/:/", $buffer , NULL);
                    $c = $c[0];
                    $c = substr($c, 1 , strlen($c));

                    echo "<span class='".$c."'></span>";
                    echo "\r\n";

                }

            }
        }
        fclose($handle);
    }

在这种类型的 css 上完美运行

@font-face {
    font-family: "FlaticonIcon";
    src: url("flaticonicon.eot");
    src: url("flaticonicon.eot#iefix") format("embedded-opentype"),
    url("flaticonicon.woff") format("woff"),
    url("flaticonicon.ttf") format("truetype"),
    url("flaticonicon.svg") format("svg");
    font-weight: normal;
    font-style: normal;
}
[class^="flaticonicon-"]:before, [class*=" flaticonicon-"]:before,
[class^="flaticonicon-"]:after, [class*=" flaticonicon-"]:after {   
    font-family: FlaticonIcon;
    font-size: 20px;
    font-style: normal;
    margin-left: 20px;
}
.flaticonicon-add121:before {
    content: "\e000";
}
.flaticonicon-alarm57:before {
    content: "\e001";
}
.flaticonicon-appointment:before {
    content: "\e002";
}
.flaticonicon-armchair1:before {
    content: "\e003";
}
.flaticonicon-audio49:before {
    content: "\e004";
}
.flaticonicon-baseball24:before {
    content: "\e005";
}
.flaticon-etc etc

问题是 css 文件不会保持原样，在元素结束时会缩小成这样，这样我的代码就无法正确读取图标的所有类。

@font-face{font-family:"FlaticonIcon";src:url("flaticonicon.eot");src:url("flaticonicon.eot#iefix") format("embedded-opentype"),url("flaticonicon.woff") format("woff"),url("flaticonicon.ttf") format("truetype"),url("flaticonicon.svg") format("svg");font-weight:normal;font-style:normal}[class^="flaticonicon-"]:before,[class*=" flaticonicon-"]:before,[class^="flaticonicon-"]:after,[class*=" flaticonicon-"]:after{font-family:FlaticonIcon;font-size:20px;font-style:normal;margin-left:20px}.flaticonicon-add121:before{content:"\e000"}.flaticonicon-alarm57:before{content:"\e001"}.flaticonicon-appointment:before{content:"\e002"}.flaticonicon-armchair1:before{content:"\e003"}.flaticonicon-audio49:before{content:"\e004"}.flaticonicon-baseball24:before{content:"\e005"}.flaticonicon-basin:before{content:"\e006"}.flaticonicon-basketball32:before{content:"\e007"}.flaticonicon-bath2:before{content:"\e008"}.flaticonicon-bathroom1:before{content:"\e009"}.flaticonicon- ........ }

我看过类似的问题，我认为正确的解决方案是使用正则表达式

---

更新..

即使只是能够推断 {....} 之间的文本，它也会非常有用，到那时它会很简单

更新..

这有帮助

$c = file_get_contents('flaticonicon.css');
$cc = split('[{}]', $c);

更新..

这是我的解决方案

$c = file_get_contents('flaticonicon.css');
$cc = split('[{}]', $c);

for($i = 0 ; $i < count($cc) ; $i++){
    if(substr($cc[$i], 0 , 14) == ".flaticonicon-"){
        $app = preg_split("/:/", $cc[$i] , null);
        $app = substr($app[0], 1,strlen($app[0]));
        echo $app."<br>";
    }
}

Answer 1

我不是正则表达式的明星，但它似乎可以解决问题:

$matches = array();
$t = preg_match_all('/\.flaticon[^:]*/', $string, $matches);

echo '<pre>'.print_r($matches[0],true).'</pre>';

您只需删除前导点即可获取名称。压缩 css 的结果:

[0] => .flaticonicon-add121
[1] => .flaticonicon-alarm57
[2] => .flaticonicon-appointment
[3] => .flaticonicon-armchair1
[4] => .flaticonicon-audio49
[5] => .flaticonicon-baseball24
[6] => .flaticonicon-basin
[7] => .flaticonicon-basketball32
[8] => .flaticonicon-bath2
[9] => .flaticonicon-bathroom1