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A brief analysis of php filtering html strings to prevent SQL injection
A brief analysis of php filtering html strings to prevent SQL injection
这篇文章主要介绍了浅析php过滤html字符串,防止SQL注入，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下
http://www.mb5u.com/biancheng/php/php_98728.html
本篇文章是对PHP中字符串编码转换的实现代码进行了详细的分析介绍，需要的朋友参考下 复制代码 代码如下: /** * 对数据进行编码转换 * @param array/string $data 数组 * @param string $output 转换后的编码 */ function array_iconv($data,$output = 'utf-8') { $enco本篇文章是对php中过滤html字符串,防止SQL注入的方法进行了详细的分析介绍，需要的朋友参考下
批量过滤post,get敏感数据
复制代码 代码如下:
$_GET = stripslashes_array($_GET); $_POST = stripslashes_array($_POST);
数据过滤函数
复制代码 代码如下:
function stripslashes_array(&$array) {
while(list($key,$var) = each($array)) {
if ($key != 'argc' && $key != 'argv' && (strtoupper($key) != $key || ''.intval($key) == "$key")) {
if (is_string($var)) {
$array[$key] = stripslashes($var);
}
if (is_array($var)) {
$array[$key] = stripslashes_array($var);
}
}
}
return $array;
}
替换HTML尾标签,为过滤服务
复制代码 代码如下:
function lib_replace_end_tag($str)
{
if (empty($str)) return false;
$str = htmlspecialchars($str);
$str = str_replace( '/', "", $str);
$str = str_replace("\\", "", $str);
$str = str_replace(">", "", $str);
$str = str_replace("<", "", $str);
$str = str_replace("<SCRIPT>", "", $str);
$str = str_replace("</SCRIPT>", "", $str);
$str = str_replace("<script>", "", $str);
$str = str_replace("</script>", "", $str);
$str=str_replace("select","select",$str);
$str=str_replace("join","join",$str);
$str=str_replace("union","union",$str);
$str=str_replace("where","where",$str);
$str=str_replace("insert","insert",$str);
$str=str_replace("delete","delete",$str);
$str=str_replace("update","update",$str);
$str=str_replace("like","like",$str);
$str=str_replace("drop","drop",$str);
$str=str_replace("create","create",$str);
$str=str_replace("modify","modify",$str);
$str=str_replace("rename","rename",$str);
$str=str_replace("alter","alter",$str);
$str=str_replace("cas","cast",$str);
$str=str_replace("&","&",$str);
$str=str_replace(">",">",$str);
$str=str_replace("<","<",$str);
$str=str_replace(" ",chr(32),$str);
$str=str_replace(" ",chr(9),$str);
$str=str_replace(" ",chr(9),$str);
$str=str_replace("&",chr(34),$str);
$str=str_replace("'",chr(39),$str);
$str=str_replace("<br />",chr(13),$str);
$str=str_replace("''","'",$str);
$str=str_replace("css","'",$str);
$str=str_replace("CSS","'",$str);
return $str;
}分享：服务器变量 $_SERVER 的深入解析
服务器变量 $_SERVER 的深入解析： 1、$_SESSION['PHP_SELF'] -- 获取当前正在执行脚本的文件名 2、$_SERVER['SERVER_PROTOCOL'] -- 请求页面时通信协议的名称和版本。例如，HTTP/1.0。 3、$_SERVER['REQUEST_TIME'] -- 请求开始时的时间戳。从 PHP 5.1.0 起有效。和ti
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