php通用防注入程序 推荐

function jk1986_checksql()
{
$bad_str = "and|select|update|'|delete|insert|*";
$bad_array = explode("|",$bad_str);
/** 过滤get参数 **/
foreach ($bad_array as $bad_a)
{
foreach ($_get as $g)
{
if (substr_count(strtolower($g),$bad_a) > 0)
{
echo "<script>alert('诡异字符,请不要尝试注入本站! 作者:jk1986 qq:414028660');location.href='index.php';</script>";
exit();
}
}
}

/** 过滤post参数 **/

foreach ($bad_array as $bad_a)
{
foreach ($_post as $p)
{
if (substr_count(strtolower($p),$bad_a) > 0)
{
echo "<script>alert('诡异字符,请不要尝试注入本站! 作者:jk1986 qq:414028660');location.href='index.php';</script>";
exit();
}
}
}

/** 过滤cookies参数 **/

foreach ($bad_array as $bad_a)
{
foreach ($_cookie as $co)
{
if (substr_count(strtolower($co),$bad_a) > 0)
{
echo "<script>alert('诡异字符,请不要尝试注入本站! 作者:jk1986 qq:414028660');location.href='index.php';</script>";
exit();
}
}
}
}