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function is_email($str){
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-
return preg_match("/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/", $str);
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}
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function is_url($str){
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-
return preg_match("/^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"])
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*$/", $str);
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}
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function is_qq($str){
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-
-
return preg_match("/^[1-9]\d{4,8}$/", $str);
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}
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function is_zip($str){
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-
-
return preg_match("/^[1-9]\d{5}$/", $str);
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}
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function is_idcard($str){
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-
-
return preg_match("/^\d{15}(\d{2}[A-Za-z0-9])?$/", $str);
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}
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function is_chinese($str){
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-
检验是否是中文
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return ereg("^[".chr(0xa1)."-".chr(0xff)."]+$",$str);
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}
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function is_english($str){
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-
-
return preg_match("/^[A-Za-z]+$/", $str);
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}
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function is_mobile($str){
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-
-
return preg_match("/^((\(\d{3}\))|(\d{3}\-))?13\d{9}$/", $str);
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}
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function is_phone($str){
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-
-
return preg_match("/^((\(\d{3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}$/",
-
-
$str);
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}
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function is_safe($str){
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return (preg_match("/^(([A-Z]*|[a-z]*|\d*|[-_\~!@#\$%\^&\*\.\(\)\[\]\{\}<>\?\\\/\'\"]*)|.
-
-
{0,5})$|\s/", $str) != 0);
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}
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}