Question

PHP获取指定页面中整个标签内容

<form action="" method="post" class="con"><input type='hidden' name='csrfmiddlewaretoken' value='FHkJrIUwZCjKGgug0T1Q2apkM7Oligng' />
<label for="login">

想要获取
<input type='hidden' name='csrfmiddlewaretoken' value='FHkJrIUwZCjKGgug0T1Q2apkM7Oligng' />

Answer 1

$s = "<form action=\" method=\"post\" class=\"con\"><input type='hidden' name='csrfmiddlewaretoken' value='FHkJrIUwZCjKGgug0T1Q2apkM7Oligng' />
    <label for=\"login\">";
$bq = 'input';//获取所有input标签内容
$rex = '#<'.$bq.'.*?>#i';
preg_match_all($rex, $s, $matches);
var_dump($matches);