一 代码
1、index.PHP
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <Meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>过滤留言板中的非法字符</title> <style type="text/css"> <!-- body { margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; } --> </style></head> <body> <table width="1002" height="585" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td width="379" height="226"> </td> <td width="445"> </td> <td width="178"> </td> </tr> <form id="form1" name="form1" method="post" action="index_ok.PHP"> <tr> <td height="260"> </td> <td align="center" valign="top"><table width="430" border="1" cellpadding="1" cellspacing="1" bordercolor="#FFFFFF" bgcolor="#99CC67"> <tr> <td width="81" height="30" align="right" bgcolor="#FFFFFF">发布主题：</td> <td width="307" align="left" bgcolor="#FFFFFF"><input name="title" type="text" id="title" size="30" /></td> </tr> <tr> <td align="right" bgcolor="#FFFFFF">发布内容：</td> <td align="left" bgcolor="#FFFFFF"><textarea name="content" cols="43" rows="13" id="content"></textarea></td> </tr> </table></td> <td> </td> </tr> <tr> <td height="99"> </td> <td align="center" valign="top"><table width="315" height="37" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="169" align="center"><input type="image" name="imageField" src="images/bg1.JPG" /></td> <td width="146" align="center"><input type="image" name="imageField2" src="images/bg3.JPG" onclick="form.reset();return false;" /></td> </tr> </table></td> <td> </td> </tr> </form> </table> </body> </html>
2、index_ok.PHP
<?PHP $title=$_POST[title]; $content=$_POST[content]; $str="****"; $titles = preg_replace("/(黑客)|(抓包)|(监听)/",$str,$title); $contents = preg_replace("/(黑客)|(抓包)|(监听)/",$content); ?> <html> <head> <Meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>过滤留言板中的非法字符</title> <style type="text/css"> <!-- body { margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; } .STYLE1 { font-size: 12px; color: #855201; } --> </style></head> <body> <table width="1002" height="585" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td width="400" height="226"> </td> <td width="406"> </td> <td width="196"> </td> </tr> <form id="form1" name="form1" method="post" action="index_ok.PHP"> <tr> <td height="260"> </td> <td align="left" valign="top"><p class="STYLE1">发布主题：<?PHP echo $titles;?></p> <p class="STYLE1">发布内容：<?PHP echo $contents;?></p></td> <td> </td> </tr> <tr> <td> </td> <td align="center" valign="top"> </td> <td> </td> </tr> </form> </table> </body> </html>二 运行结果
