It is detected that you have logged in to your QQ account PHP general detection function collection Page 1/3

//[Warning]: Please do not modify without permission
//----------------------------- -------------------------------------------------- ---
-------
//------------------------------------------------ -----------------------------------------------
-- -----
//
// [File name]: c_check.inc
// [Function]: Universal detection function set
// [Author]: Tianhui
//
// [Last modification Date]: 2001/05/11[cxx]
// [Variable definition rules]: 'C_'=Character type,'I_'=Integer type,'N_'=Number type,'L_'=Boolean type,'A_ '=Number
Group type
//----------------------------------------- ---------------------------------------------
------
//-------------------------------------------------- ------------------------------------
------
// ※CheckMoney( $C_Money) Check whether the data is in
99999.99 format
// ※CheckEmailAddr($C_mailaddr) Determines whether it is a valid email address
Address
// ※CheckWebAddr($C_weburl) Determines whether it is a valid URL
// ※CheckEmpty($C_char) Determine whether the string is empty
// ※CheckLengthBetween($C_char, $I_len1, $I_len2=100) Determine whether it is within the specified length
String
// ※CheckUser($C_user) Determine whether it is a legal user name
// ※CheckPassword($C_passwd) determines whether it is a legitimate user password
code
// ※CheckTelephone($C_telephone) determines whether it is a legitimate phone number
code
// ※CheckValueBetween($N_var, $N_val1, $N_val2) determines whether it is a certain
Legal values ​​within a range
// ※CheckPost($C_post) determines whether it is a legal zip code (fixed
fixed length)
// ※CheckExtendName($C_filename,$A_extend) determines the extension of the uploaded file
// ※CheckImageSize ($ImageFileName,$LimitSize) Check the size of the uploaded image
// ※AlertExit($C_alert,$I_goback=0) Illegal operation warning and exit
// ※Alert($C_alert,$I_goback=0) Illegal operation warning
/ / ※ReplaceSpacialChar($C_char) Special character replacement function
// ※ExchangeMoney($N_money) Fund conversion function
// ※WindowLocation($C_url,$C_get="",$C_getOther="") window.location in PHP
Function
//------------------------------------------------ ---------------------------------------------
------
//- -------------------------------------------------- --------------------------------
------
// Function name: CheckMoney($C_Money )
// Function: Check whether the data is in 99999.99 format
// Parameter: $C_Money (number to be detected)
// Return value: Boolean value
// Remarks: None
//----- -------------------------------------------------- ----------------------------
-------
function CheckMoney($C_Money)
{
if (!ereg ("^[0-9][.][0-9]$", $C_Money)) return false;
return true;
}
//-------------- -------------------------------------------------- ------------------
-------
//------------------------ -------------------------------------------------- ------------
-------
// Function name: CheckEmailAddr($C_mailaddr)
// Function: Determine whether it is a valid email address
// Parameters: $ C_mailaddr (email address to be detected)
//Return value: Boolean value
//Remarks: None
//------------------------ -------------------------------------------------- ---------
-------
function CheckEmailAddr($C_mailaddr)
{
if (!eregi("^[_a-z0-9-]+(.[_a-z0- 9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*$",
$C_mailaddr))
//(!ereg("^[_a-zA -Z0-9-]+(.[_a-zA-Z0-9-]+)*@[_a-zA-Z0-9-]+(.[_a-zA-Z0-9-]+)*$ ",
$c_mailaddr))
{
return false;
}
return true;
}
//-------------------------------------------------- ------------------------------------
-------
//--- -------------------------------------------------- ----------------------------------
-------
// Function name: CheckWebAddr($C_weburl)
// Function: Determine whether it is a valid URL
// Parameter: $C_weburl (URL to be detected)
// Return value: Boolean value
// Remarks: None
//-------- -------------------------------------------------- --------------------------
------
function CheckWebAddr($C_weburl)
{
if (!ereg("^ http://[_a-zA-Z0-9-]+(.[_a-zA-Z0-9-]+)*$", $C_weburl))
{
return false;
}
return true;
}
//--------------------------------------------- -------------------------------------
-------
//-- -------------------------------------------------- ----------------------------------
-------
// Function name: CheckEmpty($C_char)
// Function: Determine whether the string is empty
// Parameter: $C_char (string to be detected)
// Return value: Boolean value
// Remarks: None
//----- -------------------------------------------------- ----------------------------
-------
function CheckEmptyString($C_char)
{
if (!is_string ($C_char)) return false; //Whether it is a string type
if (empty($C_char)) return false; //Whether it has been set
if ($C_char=='') return false; //Whether it is Empty
return true;
}
//---------------------------------------- -----------------------------------------------
------ -
//------------------------------------------------ -------------------------------------
------
// Function name ：CheckLengthBetween($C_char, $I_len1, $I_len2=100)
// Function: Determine whether it is a string within the specified length
// Parameters: $C_char (string to be detected)
// $I_len1 (target The lower limit of the string length)
// $I_len2 (the upper limit of the target string length)
// Return value: Boolean value
// Remarks: None
//------------- -------------------------------------------------- --------------------
-------
function CheckLengthBetween($C_cahr, $I_len1, $I_len2=100)
{
$C_cahr = trim ($C_cahr);
if (strlen($C_cahr) < $I_len1) return false;
if (strlen($C_cahr) > $I_len2) return false;
return true;
}
//---- -------------------------------------------------- --------------------------
-------
//---------- -------------------------------------------------- -----------------------
-------
// Function name: CheckUser($C_user)
// Function: Determine whether It is a legal user name
// Parameter: $C_user (user name to be detected)
// Return value: Boolean value
// Remarks: None
//------------- -------------------------------------------------- --------------------
-------
function CheckUser($C_user)
{
if (!CheckLengthBetween($C_user, 4, 20) ) return false; //Width test
if (!ereg("^[_a-zA-Z0-9]*$", $C_user)) return false; //Special character test
return true;
}
// -------------------------------------------------- ----------------------------------
-------
//------ -------------------------------------------------- --------------------------
-------
// Function name: CheckPassword($C_passwd)
// Operation Use: to determine whether it is a legitimate user password
// Parameter: $C_passwd (password to be detected)
// Return value: Boolean value
// Remarks: None
//---------- -------------------------------------------------- -----------------------
-------
function CheckPassword($C_passwd)
{
if (!CheckLengthBetween($C_passwd, 4 , 20)) return false; //Width detection
if (!ereg("^[_a-zA-Z0-9]*$", $C_passwd)) return false; //Special character detection
return true;
}
//-------------------------------------------------- ------------------------------------
-------

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