Php Session Var

PHP is a server scripting language, and he is now the most popular web development language, the following we describe several of the PHP development applications commonly used in the four of different ways to pass parameters between the two. First: Use a cookie from the client browser. Cookies are easy to understand, is a temporary file, you can see it as a storage room, the browser in the process of browsing the record of some information, temporarily stored here.   Set a cookie in PAGE01. <?php &nb ...

Several important php.ini options Register Globals php> = 4.2.0, the default value for php.ini's register_globals option is set to Off, and when register_globals is set to On, the program can receive various environment variables from the server , Including the form submitted variables, but also because PHP does not have to initialize the value of the variable, resulting in a big security risk. Example 1: // check_admin () with ...

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// initialize the session session_start (); // add the value of the url rewrite output_add_rewrite_var ('var', 'value'); // insert a link echo '<a href="file.php">">"> link </a> </a> ; / / Send buffer data ob_flush (); // reset the value of url rewrite o ...

2.5.4 Cookie Security (1) Cookies are a magical mechanism in which any request from a browser in the same domain will be brought with a cookie, no matter what resource is requested, and the cookie appears in the cookie field of the request header. The Set-cookie field of the server-side response header can add, modify, and delete cookies, and in most cases the client can add, modify, and delete cookies through JavaScript. Because of this mechanism, cookies are often used ...