Re: how can i use a link as a session var

From: Date: Mon, 30 Oct 2000 02:34:14 +0000
Subject: Re: how can i use a link as a session var
Groups: php.db 
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First off, I am a newbie so take my advice with a grain of salt!! As far as I can tell there are 2 ways of passing values ... and the problem is not in passing values from one page to another (that is automatic), but in passing values to a third page. The first is to pass the value along in the url for the next page, as when you see on many websites a variable=value pair in the url string (http://someplace.com/query.php?var1=ten&var2=another_val)..this is traditionally passed along from a form using the GET method. The way you would do this is to construct the url on page1...like echo "<a href=\"query.php?$var_for_next_page\">link to page 2</a>"; The next way to pass a value is by using a form and the post method. When using the post method, all form variables get passed in an array called $HTTP_POST_VARS. This is a really nice and handy way to pass variables along because if your form vaiables were name, date, city, what you will get in http_post_vars on the next page is $HTTP_POST_VARS[name] $HTTP_POST_VARS[date] $HTTP_POST_VARS[city] So if you need to send a value to a 3rd page, you can include it in a hidden element<INPUT TYPE=hidden NAME="hidden_name" VALUE="hidden_value"> and the user will never see the value. You can combine the 2 ways and have all interactivity take place on one page, and keep things manageable...you can construct such a beast by using the "meat patty" type of structure such as the following, where the head and foot are static top and bottom of your html page but the dynamic is the middle, represented by the functions: include(html_header.php); //where you split your html into a head and foot switch ($mode){ case "add" function_one() case "del" function_two() } include (html_foot.php); and depending how you call your page (thing.php?mode=add or thing.php?mode=del) is how you navigate through your different parts of the thing... I have already gone on too long HTH, Luis --- deryk <deryk@163.net> wrote: > can anyone help me: > in the following > <? > $link=mysql_connect("localhost","user","password"); > ?> > i want to use $link as a session var to transfer to > another > page,but it does't work,I don't know what happened > or what > to do,I need help. > thx > > > > > -- > PHP Database Mailing List (http://www.php.net/) > To unsubscribe, e-mail: > php-db-unsubscribe@lists.php.net > For additional commands, e-mail: > php-db-help@lists.php.net > To contact the list administrators, e-mail: > php-list-admin@lists.php.net > --------------------------------------------- This message was sent using Mecha WebMail.

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