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// [File name]: c_check.inc
// [Function]: Universal detection function set
// [Author]: Tianhui
// [Last modified date]: 2001/05/ 11[cxx]
//【Variable definition rules】: 'C_'=character type,'I_'=integer type,'N_'=numeric type,'L_'=Boolean type,'A_'=array type
// --------------------------------------------------
// ※CheckMoney($C_Money) Checks whether the data is in 99999.99 format
// ※CheckEmailAddr($C_mailaddr) Determines whether it is a valid email 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, $I_len2=100) Determine whether it is a string within the specified length
// ※CheckUser($C_user) Determine whether it is a legal user name
// ※CheckPassword($C_passwd) determines whether it is a legal user password
// ※CheckTelephone($C_telephone) determines whether it is a legal phone number
// ※CheckValueBetween($N_var, $N_val1, $N_val2) determines whether it is a certain range Legal values within
// ※CheckPost($C_post) determines whether it is a legal zip code (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 function in PHP
//- --------------------------------------------------
//------------------------------------------------ --
// Function name: CheckMoney($C_Money)
// Function: Check whether the data is in 99999.99 format
// Parameter: $C_Money (the number to be detected)
// Return value: Boolean value
// Remarks: None
//------------------------------------------------ -------
function CheckMoney($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
// Parameter: $C_mailaddr (email address to be detected)
// Return value: Boolean value
// Remarks: None
//---------------------------------- ---------------
function CheckEmailAddr($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
// Parameters: $C_weburl (URL to be detected)
// Return value: Boolean value
// Remarks: None
//--------------------- -----------------------------
function CheckWebAddr($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
// Parameter: $C_char (to be detected string)
// $I_len1 (lower limit of target string length)
// $I_len2 (upper limit of target string length)
// Return value: Boolean value
// Remarks: None
//-- ---------------------------------------------
function CheckLengthBetween($C_cahr, $I_len1, $I_len2=100)
{
$C_cahr = trim($C_cahr);
if (strlen($C_cahr) if (strlen($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)
// Function: Determine whether it is a legal user password
// Parameter: $C_passwd (password to be detected)
// Return value: Boolean value
// Remarks :None
//------------------------------------------------ -----
function CheckPassword($C_passwd)
{
if (!CheckLengthBetween($C_passwd, 4, 20)) return false; //Width detection
if (!ereg("^[_a-zA-Z0- 9]*$", $C_passwd)) return false; //Special character detection
return true;
}
//-------------------------- --------------------------
//----------------------------- ----------------------------------
// Function name: CheckTelephone($C_telephone)
// Function: Determine whether it is Legal phone number
// Parameter: $C_telephone (phone number to be detected)
// Return value: Boolean value
// Remarks: None
//------------- ------------------------------------
function CheckTelephone($C_telephone)
{
if (!ereg ("^[+]?[0-9]+([xX-][0-9]+)*$", $C_telephone)) return false;
return true;
}
//----- ---------------------------------------------
//-- ---------------------------------------------
/ / Function name: CheckValueBetween($N_var, $N_val1, $N_val2)
// Function: Determine whether it is a legal value within a certain range
// Parameter: $N_var Value to be detected
// $N_var1 To be detected The upper limit of the value
// $N_var2 The lower limit of the value to be detected
// Return value: Boolean value
// Remarks: None
//----------------- ----------------------------------
function CheckValueBetween($N_var, $N_val1, $N_val2)
{
if ($ N_var $N_var2)
{
return false;
}
return true;
}
//-------------------------------- ----------------------------------
//---------------- ----------------------------------
// Function name: CheckPost($C_post)
// Function : Determine whether it is a legal postal code (fixed length)
// Parameter: $C_post (postal code to be checked)
// Return value: Boolean value
// Remarks: None
//------ ---------------------------------------------
function CheckPost($C_post)
{
$C_post=trim($C_post);
if (strlen($C_post) == 6)
{
if(!ereg("^[+]?[_0-9]*$",$C_post) )
{
return true;;
}else
{
return false;
}
}else
{
return false;;
}
}
//-------------------------------------------------- ---
//-------------------------------------------------- ------
// Function name: CheckExtendName($C_filename,$A_extend)
// Function: Determine the extension of the uploaded file
// Parameter: $C_filename Uploaded file name
// $A_extend requirement Extension
//Return value: Boolean value
//Remarks: None
//----------------------------- ---------------------
function CheckExtendName($C_filename,$A_extend)
{
if(strlen(trim($C_filename)) {
return 0; //Returning 0 means no picture has been uploaded
}
$lastdot = strrpos($C_filename, "."); //Take out the last position
$extended = substr($C_filename, $lastdot+1) ; //Get the extension
for($i=0;$i
if (trim(strtolower($extended)) == trim(strtolower($ A_extend[$i]))) //Convert uppercase to lowercase and detect
{
$flag=1; //Add success flag
$i=count($A_extend); //Stop detection if detected
}
}
if($flag1)
{
for($j=0;$j
$alarm .= $ A_extend[$j]." ";
}
AlertExit('Only '.$alarm.' files can be uploaded!And what you uploaded is a file of type '.$extended.');
return -1; //Returning -1 means that the type of the uploaded picture does not match
}
return 1; //Returning 1 means that the type of the picture meets the requirements
}
//------------------------------------------------ ----
//--------------------------------------------- -------
// Function name: CheckImageSize($ImageFileName,$LimitSize)
// Function: Check the size of the uploaded image
// Parameter: $ImageFileName Uploaded image name
// $LimitSize requirement Size
// Return value: Boolean value
// Remarks: None
//----------------------------- --------------------
function CheckImageSize($ImageFileName,$LimitSize)
{
$size=GetImageSize($ImageFileName);
if ($size[0] >$LimitSize[0] || $size[1]>$LimitSize[1])
{
AlertExit('Picture size is too large');
return false;
}
return true;
}
// --------------------------------------------------
//-------------------------------------------------- ---
// Function name: Alert($C_alert,$I_goback=0)
// Function: Illegal operation warning
// Parameters: $C_alert (error message prompted)
// $I_goback (return to That page)
//Return value: String
//Remarks: None
//---------------------------- -----------------------
function Alert($C_alert,$I_goback=0)
{
if($I_goback0)
{
echo "<script>alert('$C_alert');history.go($I_goback);</script>";
}
else
{
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