Questions about PHP page redirection

Problems with PHP page redirection
What are the methods of PHP page redirection, and how do I implement a new page by passing the ID value? php? page Redirection PHP

------Solution--------------------
First, the header ("location:http://...");
Note: There can be no other output before 1.header.
2.header redirect immediately after exit to prevent subsequent statements from being executed.

Ii. Meta in HTML




Third, write JS
echo "";

The passed-in variable is appended directly to the URL and is passed to the next page, $url = ' http://xxx.com/a.php?a= '. " $a ";
------Solution--------------------
Header ("location:http://www.sina.com.cn/?a=1111");

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