常用表单验证类
class class_post
{
//验证是否为指定长度的字母/数字组合
function fun_text1($num1,$num2,$str)
{
Return (preg_match("/^[a-zA-Z0-9]{".$num1.",".$num2."}$/",$str))?true:false;
}
//验证是否为指定长度数字
function fun_text2($num1,$num2,$str)
{
return (preg_match("/^[0-9]{".$num1.",".$num2."}$/i",$str))?true:false;
}
//验证是否为指定长度汉字
function fun_font($num1,$num2,$str)
{
// preg_match("/^[xa0-xff]{1,4}$/", $string);
return (preg_match("/^([x81-xfe][x40-xfe]){".$num1.",".$num2."}$/",$str))?true:false;
}
//验证身份证号码
function fun_status($str)
{
return (preg_match('/(^([d]{15}|[d]{18}|[d]{17}x)$)/',$str))?true:false;
}
//验证邮件地址
function fun_email($str){
return (preg_match('/^[_.0-9a-z-] @([0-9a-z][0-9a-z-] .) [a-z]{2,4}$/',$str))?true:false;
}
//验证电话号码
function fun_phone($str)
{
return (preg_match("/^(((d{3}))|(d{3}-))?((0d{2,3})|0d{2,3}-)?[1-9]d{6,7}$/",$str))?true:false;
}
//验证邮编
function fun_zip($str)
{
return (preg_match("/^[1-9]d{5}$/",$str))?true:false;
}
//验证url地址
function fun_url($str)
{
return (preg_match("/^http://[A-Za-z0-9] .[A-Za-z0-9] [/=?%-&_~`@[]': !]*([^""])*$/",$str))?true:false;
}
// 数据入库 转义 非凡字符 传入值可为字符串 或 一维数组
function data_join(&$data)
{
if(get_magic_quotes_gpc() == false)
{
if (is_array($data))
{
foreach ($data as $k => $v)
{
$data[$k] = addslashes($v);
}
}
else
{
$data = addslashes($data);
}
}
Return $data;

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