How to implement web page tag completion in php_PHP tutorial

Introduction: When PHP generates static files, sometimes due to some mixing problems, HTML tags are incomplete or confusing, resulting in page confusion. The author shares the following small code that can solve the problem very conveniently.

If the html tags of your web page content are not fully displayed, some table tags are incomplete and cause page confusion, or partial html pages other than your content are included, we can write a function method to complete the html tags and filter Remove useless html tags.
​ The method for PHP to automatically complete the closing function of HTML tags is as follows: ​

function closetags($html) { preg_match_all('#<(?!meta|img|br|hr|inputb)b([a-z]+)(?: .*)?(? #iU', $html, $result); $openedtags = $ result[1]; Preg_match_all('##iU', $html, $result); $closedtags = $result[1]; $len_opened = count($openedtags); If (count($closedtags) == $len_opened) { return $html; } $openedtags = array_reverse($openedtags); for ($i=0; $i < $len_opened; $i++) { If (!in_array($openedtags[$i], $closedtags)) {                $html .= ' ';       } else { ​ ​ ​ ​ unset($closedtags[array_search($openedtags[$i], $closedtags)]);        }
} Return $html; }

Analysis: array_reverse(): This function reverses the order of elements in the original array, creates a new array and returns it. If the second parameter is specified as true, the element's key name remains unchanged, otherwise the key name is lost. array_search(): array_search(value, array, strict), this function searches for a key value in the array just like in_array(). If the value is found, the key of the matching element is returned. If not found, returns false. If the third parameter strict is specified as true, the key name of the corresponding element will only be returned if the data type and value are consistent.





Author's blog address: http://blog.sina.com.cn/s/articlelist_2129618781_0_1.html
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