Question

php中删除html标签里的属性(可用正则表达式)

$str = '<span style=\"font-family:\'Arial\',\'sans-serif\';font-size:9pt;\">test</span>';
$str=stripslashes($str);
echo htmlspecialchars($str)."<br/>";

Answer 1

$str = '<span style=\"font-family:\'Arial\',\'sans-serif\';font-size:9pt;\">test</span>';

//$str=stripslashes($str);

$str = preg_replace('#<([^>\s/]+)[^>]*>#','<$1>',$str);

echo htmlspecialchars($str)."<br/>";

Answer 2

php正则表达式:<em>.*</em>
完整的php利用正则表达式删除html标签程序如下:

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<?<a href="https://www.baidu.com/s?wd=php&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4uWmYnAndPvD1uj0dm1cL0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6K1TL0qnfK1TL0z5HD0IgF_5y9YIZ0lQzqlpA-bmyt8mh7GuZR8mvqVQL7dugPYpyq8Q1D1PWmdrjDznjf4PHDvPWfYPHb" target="_blank" class="baidu-highlight">php</a>

$str = '<p>12345<em>123abc"def"</em></p>';

echo preg_replace('#<em>.*</em>#is','',$str);

?>

运行结果:
<p>12345</p>

Answer 3

是否处理特定标签
是想删除所有属性,还是某特定属性

在是固定的span标签就简单了
$str = preg_replace('/<span[^>]*>/', '<span>', $str);

Answer 4

$str = '<span style=\"font-family:\'Arial\',\'sans-serif\';font-size:9pt;\">test</span>';
$str=stripslashes($str);
$str = preg_replace('/<([a-z]+)\s+[^>]*>/is', '<$1>', $str);

echo htmlspecialchars($str)."<br/>";

Answer 5

$str = '<span style=\"font-family:\'Arial\',\'sans-serif\';font-size:9pt;\">test</span>';
$str=strip_tags($str);
echo htmlspecialchars($str)."<br/>";