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<?php |
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/** |
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* Class Html |
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* |
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* @link https://www.icy2003.com/ |
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* @author icy2003 <[email protected]> |
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* @copyright Copyright (c) 2017, icy2003 |
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*/ |
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namespace icy2003\php\ihelpers; |
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/** |
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* Html 相关 |
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*/ |
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class Html |
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{ |
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/** |
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* htmlspecialchars 简化版 |
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* |
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* @see http://php.net/manual/zh/function.htmlspecialchars.php |
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* |
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* @param string $content HTML 内容 |
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* @param boolean $doubleEncode 是否重复转化 |
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* @param string $encoding 编码，默认 UTF-8 |
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* |
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* @return string |
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*/ |
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public static function encode($content, $doubleEncode = true, $encoding = 'UTF-8') |
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{ |
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return htmlspecialchars($content, ENT_QUOTES | ENT_SUBSTITUTE, $encoding, $doubleEncode); |
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} |
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/** |
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* htmlspecialchars_decode 简化版 |
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* |
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* @see http://php.net/manual/zh/function.htmlspecialchars-decode.php |
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* |
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* @param string $content HTML 内容 |
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* |
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* @return string |
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*/ |
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public static function decode($content) |
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{ |
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return htmlspecialchars_decode($content, ENT_QUOTES); |
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} |
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/** |
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* strip_tags 从字符串中去除 HTML 和 PHP 标记 |
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* 改良：不合法/错误的 html 标签也能匹配 |
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* |
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* @see http://php.net/manual/zh/function.strip-tags.php |
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* |
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* @param string $html |
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* @param array $allowTags 区别于 strip_tags，例如 a 和 h1 标签，strip_tags 的需要写成'<a><h1>'这里就写 ['a', 'h1'] |
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* |
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* @return string |
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*/ |
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public static function stripTags($html, $allowTags = []) |
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{ |
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$allowTags = array_map('strtolower', $allowTags); |
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return preg_replace_callback('/<\/?([^>\s]+)[^>]*>/i', function ($matches) use (&$allowTags) { |
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return in_array(strtolower($matches[1]), $allowTags) ? $matches[0] : ''; |
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}, $html); |
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} |
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} |
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icy2003 /
php
