PHP is looking for HTML tags that contain ID attributes in HTML

In PHP, with regular expressions, to find the HTML has an id attribute of all the HTML tags, this article gives a detailed method of operation, the need for a friend reference. How do I find a tag with an id attribute in my HTML using a PHP regular expression? That is, you need to find the HTML tags in angle brackets <>, as well as id= "". Example: string: 12321321314423 mismatch: ... Content/div> above, you can use the following regular match: <[a-za-z0-9][^>]+?id=[^>]+?>.*? Here's an example of a full PHP regex that matches the HTML tag that contains the id attribute. For example: ]+?id=[^>]+?>.* #is ';p reg_match_all ($search, $str, $r); Echo ' ';p rint_r ($r); Echo ' ';? > Output: Array ([0] = = Array ([0] = 123213) )

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