在<object> / <embed>标记中提取特定的URL编码查询字符串

如何解决在<object> / <embed>标记中提取特定的URL编码查询字符串

|| 我想删除所有内容，并且只希望php中标签之间的特定值， 这是我想要的代码：

<object height=\"81\" width=\"100%\">
    <param name=\"movie\" value=\"http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fapi.soundcloud.com%2Ftracks%2F17181143\"></param> <param name=\"allowscriptaccess\" value=\"always\"></param>
    <embed allowscriptaccess=\"always\" height=\"81\" src=\"http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fapi.soundcloud.com%2Ftracks%2F17181143\" type=\"application/x-shockwave-flash\" width=\"100%\"></embed>
</object>
<span>
    <a href=\"http://soundcloud.com/kiwinest/linkin-park-iridescent\">Linkin Park - Iridescent</a> by <a href=\"http://soundcloud.com/kiwinest\">KiwiNest</a>
</span>

我只想要17181143这个值，并想要删除其他所有内容。     

解决方法

        使用简单HTML DOM库：

<?php
    include(\'lib/simple_html_dom.php\');

    $string = \'<object height=\"81\" width=\"100%\"> <param name=\"movie\" value=\"http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fapi.soundcloud.com%2Ftracks%2F17181143\"></param> <param name=\"allowscriptaccess\" value=\"always\"></param> <embed allowscriptaccess=\"always\" height=\"81\" src=\"http://player.soundcloud.com/player.swf?url=http%3A%2F%2Fapi.soundcloud.com%2Ftracks%2F17181143\" type=\"application/x-shockwave-flash\" width=\"100%\"></embed> </object>  <span><a href=\"http://soundcloud.com/kiwinest/linkin-park-iridescent\">Linkin Park - Iridescent</a> by <a href=\"http://soundcloud.com/kiwinest\">KiwiNest</a></span>\';

    $html = str_get_html($string);
    //$html = file_get_html(\'http://www.mysite.com/\');

    if ($html) {
        foreach ($html->find(\'object\') as $obj) {
            foreach ($obj->find(\'param\') as $par) {
                if ($par->name == \'movie\') {
                    $embed = parse_url($par->value);
                    parse_str(urldecode($embed[\'query\']),$val);
                    if (array_key_exists(\'url\',$val)) {
                        $url = parse_url($val[\'url\']);
                        $path = explode(\'/\',$url[\'path\']);
                        $code = array_pop($path);
                        if (is_numeric($code)) {
                            echo \'CODE: \' . $code . PHP_EOL;
                        }
                    }
                }
            }
        }
    }
?>

输出：

CODE: 17181143

笔记： 需要外部库（DOMDocument不喜欢该片段） 可与多个嵌入一起使用（无论如何，应该..仅通过样本嵌入进行测试） 使用PHP的URL解析器（而不是RegEx）     ,        您可以使用PHP和REGEX将数字提取到数组中，从而丢弃其他所有内容。

$my_string = \'<object height=\"81\" width=\"100%\"> <param name=\"movie\" 
value=\"http://player.soundcloud.com/player.swf?url=http%3A%2F 
%2Fapi.soundcloud.com%2Ftracks%2F17181143\"></param> 
<param name=\"allowscriptaccess\" value=\"always\"></param> <embed allowscriptaccess=\"always\" 
height=\"81\" src=\"http://player.soundcloud.com/player.swf?url=http%3A%2F  
%2Fapi.soundcloud.com%2Ftracks%2F17181143\" type=\"application/x-shockwave-flash\" width=\"100%\">
</embed> </object>  <span><a href=\"http://soundcloud.com/kiwinest/linkin-park-iridescent\">Linkin 
Park - Iridescent</a> by <a href=\"http://soundcloud.com/kiwinest\">KiwiNest</a></span>\';

// Assuming all the numbers are going to be 8 characters long,if they are not,then just change
// the regex.
// look for all numbers that are 8 characters long.
preg_match_all(\'/[0-9]{8}/\',$my_string,$ids);