14-11.php3
来自「linux操作系统中 php 核心编程所有例程 都是一些很不错的案例」· PHP3 代码 · 共 44 行
PHP3
44 行
<HTML>
<HEAD>
<TITLE>Figure 14-11</TITLE>
</HEAD>
<BODY>
<?
/*
** generates a session id
*/
function SessionID($length=16)
{
/*
** Set pool of possible characters
*/
$Pool = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$Pool .= "abcdefghijklmnopqrstuvwxyz";
for($index = 0; $index < $length; $index++)
{
$sid .= substr($Pool, (rand()%(strlen($Pool))), 1);
}
return($sid);
}
/*
** Seed the generator
*/
srand(time());
if($sid != "")
{
print("Old Session ID was $sid<BR>\n");
}
$sid = SessionID();
print("<A HREF=\"14-11.php3?sid=$sid\">");
print("Get Another Session ID");
print("</A>\n");
?>
</BODY>
</HTML>
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