PHP hack的使用技巧详解

PHP hack示例：

1. ?php
2. $tabs = array();
3. function tabs_header()
4. {
5. ?>
6. style type="text/css">
7. .tab {
8. border-bottom: 1px solid black;
9. text-align: center;
10. font-family: arial, verdana;
11. }
12. .tab-active {
13. border-left: 1px solid black;
14. border-top: 1px solid black;
15. border-right: 1px solid black;
16. text-align: center;
17. font-family: arial, verdana;
18. font-weight: bold;
19. }
20. .tab-content {
21. padding: 5px;
22. border-left: 1px solid black;
23. border-right: 1px solid black;
24. border-bottom: 1px solid black;
25. }
26. /style>

php 
}  
function tabs_start()  
{   
ob_start();   
}  
function endtab()   
{   
global $tabs;  
$text = ob_get_clean();  
$tabs[ count( $tabs ) - 1 ][ 'text' ] = $text;  
ob_start();  
}  
function tab( $title )   
{  
global $tabs;  
if ( count( $tabs ) > 0 )  
endtab();  
$tabs []= array(  
title => $title,  
text => ""  
);  
}  
 
function tabs_end( )  
{  
global $tabs;  
endtab( );  
ob_end_clean( );  
$index = 0;  
if ( $_GET['tabindex'] )  
$index = $_GET['tabindex'];  
?> 
 table width="100%" cellspacing="0" cellpadding="0"> 
 tr> 
 ?php  
$baseuri = $_SERVER['REQUEST_URI'];  
$baseuri = preg_replace( "/?.*$/", "", $baseuri );  
$curindex = 0;  
foreach( $tabs as $tab )  
{  
$class = "tab";  
if ( $index == $curindex )  
$class ="tab-active";  
?> 
 td class=""> 
 a href="?tabindex=".$curindex ); ?>"> 
 ?php echo( $tab['title'] ); ?> 
 /a> 
 /td> 
 ?php  
$curindex += 1;  
}  
?> 
 /tr> 
 tr> td class="tab-content" colspan=""> 
 ?php echo( $tabs[$index ]['text'] ); ?> 
 /td>tr> 
 /table> 
 ?php  
}  
?> 

以上这一大段的代码就是有关PHP hack的具体实现方法。