"File name": C_check.inc
"Function": Universal set of test functions
"Author": Tian Ash
"Last Modified Date": 2001/05/11[cxx]
"Variable definition rule": ' c_ ' = character type, ' i_ ' = integer, ' n_ ' = numeric, ' L_ ' = boolean, ' a_ ' = array type
//--------------------------------------------------
※checkmoney ($C _money) Check if the data is in 99999.99 format
※CHECKEMAILADDR ($C _mailaddr) to determine if a valid e-mail address
※CHECKWEBADDR ($C _weburl) to determine if it is a valid URL
※checkempty ($C _char) to determine if a string is empty
※checklengthbetween ($C _char, $I _len1, $I _len2=100) determines whether a string is within a specified length
※checkuser ($C _user) to determine if it is a valid user name
※checkpassword ($C _passwd) determine if the password is a valid user
※checktelephone ($C _telephone) to determine if it is a legitimate phone number
※checkvaluebetween ($N _var, $N _val1, $N _val2) to determine whether a range of legal values
※checkpost ($C _post) determine if it is a valid ZIP code (fixed length)
※checkextendname ($C _filename, $A _extend) determine the extension of the uploaded file
※checkimagesize ($ImageFileName, $LimitSize) Verify the size of the uploaded image
※alertexit ($C _alert, $I _goback=0) Illegal operation warning and exit
※alert ($C _alert, $I _goback=0) Illegal operation warning
※replacespacialchar ($C _char) special character substitution function
※exchangemoney ($N _money) Money conversion function
※windowlocation ($C _url, $C _get= "", $C _getother= "") window.location function in PHP
//--------------------------------------------------
//--------------------------------------------------
Function name: Checkmoney ($C _money)
Role: Check whether the data is in 99999.99 format
Parameters: $C _money (number to be detected)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function Checkmoney ($C _money)
{
if (!ereg ("^[0-9][.") [0-9]$ ", $C _money)) return false;
return true;
}
//--------------------------------------------------
//--------------------------------------------------
Function name: checkemailaddr ($C _mailaddr)
Role: Determine whether a valid email address
Parameters: $C _mailaddr (e-mail address to be detected)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function checkemailaddr ($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 if it is a valid URL
Parameters: $C _weburl (URL to be detected)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function checkwebaddr ($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: Determines whether the string is empty
Parameters: $C _char (string to be detected)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function checkemptystring ($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 ($C _char== ") return false; is empty
return true;
}
//--------------------------------------------------
//--------------------------------------------------
Function name: Checklengthbetween ($C _char, $I _len1, $I _len2=100)
Function: Determines whether the string is within the specified length
Parameters: $C _char (string to be detected)
$I _len1 (the lower bound of the target string length)
$I _len2 (upper limit of target string length)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function Checklengthbetween ($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)
Role: Determine whether a valid user name
Parameters: $C _user (user name to be detected)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function CheckUser ($C _user)
{
if (! Checklengthbetween ($C _user, 4,)) return false; Width test
if (!ereg ("^[_a-za-z0-9]*$", $C _user)) return false; Special character test
return true;
}
//--------------------------------------------------
//--------------------------------------------------
Function name: Checkpassword ($C _passwd)
Role: Determine if the password is a valid user
Parameters: $C _passwd (password to be detected)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function Checkpassword ($C _passwd)
{
if (! Checklengthbetween ($C _passwd, 4,)) return false; Width detection
if (!ereg ("^[_a-za-z0-9]*$", $C _passwd)) return false; Special character detection
return true;
}
//--------------------------------------------------
//--------------------------------------------------
Function name: Checktelephone ($C _telephone)
Role: Determine whether a legal phone number
Parameters: $C _telephone (phone number to be detected)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function Checktelephone ($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 a certain range of legal values
Parameters: $N _var value to be detected
$N _VAR1 The maximum value to be detected
$N _var2 The lower limit of the value to be detected
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function Checkvaluebetween ($N _var, $N _val1, $N _val2)
{
if ($N _var < $N _var1││ $N _var > $N _var2)
{
return false;
}
return true;
}
//--------------------------------------------------
//--------------------------------------------------
Function name: checkpost ($C _post)
Function: Determine whether it is a valid postcode (fixed length)
Parameter: $C _post (zip code to check)
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function checkpost ($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)
Role: Upload file extension judgment
Parameters: $C file name uploaded by _filename
$A _extend Required Extensions
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function Checkextendname ($C _filename, $A _extend)
{
if (strlen (Trim ($C _filename)) < 5)
{
return 0; Returns 0 to indicate that no pictures were uploaded
}
$lastdot = Strrpos ($C _filename, "."); Take out. The last place to appear
$extended = substr ($C _filename, $lastdot + 1); Remove extension
for ($i =0; $i {
if (Trim (Strtolower ($extended)) = = Trim (Strtolower ($A _extend[$i]))//Convert Large
Lowercase and detect
{
$flag = 1; Add Success Flag
$i =count ($A _extend); Stop detection detected
}
}
if ($flag <>1)
{
for ($j =0; $j {
$alarm. = $A _extend[$j]. " ";
}
Alertexit (' Upload only '. $alarm. ' File! And you're uploading '. $extended. ' Files of type ');
return-1; Returns-1 indicates that the type of the uploaded picture does not match
}
return 1; Returns 1 indicates that the type of picture meets the requirements
}
//--------------------------------------------------
//--------------------------------------------------
Function name: Checkimagesize ($ImageFileName, $LimitSize)
Role: Verify the size of the uploaded image
Parameters: $ImageFileName The name of the uploaded picture
$LimitSize the required dimensions
Return Value: Boolean value
Remark: None
//--------------------------------------------------
function Checkimagesize ($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)
Action: illegal Operation warning
Parameters: $C _alert (prompt error message)
$I _goback (back to that page)
return value: String
Remark: None
//--------------------------------------------------
function Alert ($C _alert, $I _goback=0)
{
if ($I _goback<>0)
{
echo "";
}
Else
{
echo "";
}
}
//--------------------------------------------------
//--------------------------------------------------
Function name: Alertexit ($C _alert, $I _goback=0)
Action: illegal Operation warning
Parameters: $C _alert (prompt error message)
$I _goback (back to that page)
return value: String
Remark: None
//--------------------------------------------------
function Alertexit ($C _alert, $I _goback=0)
{
if ($I _goback<>0)
{
echo "";
Exit
}
Else
{
echo "";
Exit
}
}
//--------------------------------------------------
//--------------------------------------------------
Function name: Replacespacialchar ($C _char)
Role: special character substitution function
Parameters: $C _char (string to be replaced)
return value: String
Remark: None
//--------------------------------------------------
function Replacespecialchar ($C _char)
{
$C _char=htmlspecialchars ($C _char); Converts special characters to HTML format.
$C _char=nl2br ($C _char); Replace the carriage return with the
$C _char=str_replace ("", "", $C _char); Replace a space with
$C _char=str_replace (" return $C _char;
}
//--------------------------------------------------
//--------------------------------------------------
Function name: Exchangemoney ($N _money)
Role: money transfer function
Parameters: $N _money (number of amounts to be converted)
return value: String
Note: Example of this function: $char =exchangemoney (5645132.3155) ==> $char = ' ￥5,645,132.31 '
//--------------------------------------------------
function Exchangemoney ($N _money)
{
$A _tmp=explode (".", $N _money); Divides a number into two parts by a decimal point and deposits it into an array $a_tmp
$I _len=strlen ($A _tmp[0]); Measure the width of the number of digits before the decimal point
if ($I _len%3==0)
{
$I _step= $I _LEN/3; As the front digit width mod 3 = 0, can be pressed, divided into $i_step
Part
}else
{
$step = ($len-$len%3)/3+1; As the front digit width mod 3! = 0, can be pressed, divided into $i_step
Part +1
}
$C _cur= "";
Convert amount numbers before decimal point
while ($I _len<>0)
{
$I _step--;
if ($I _step==0)
{
$C _cur. = substr ($A _tmp[0],0, $I _len-($I _step));
}else
{
$C _cur. = substr ($A _tmp[0],0, $I _len-($I _step)). ",";
}
$A _tmp[0]=substr ($A _tmp[0], $I _len-($I _step);
$I _len=strlen ($A _tmp[0]);
}
Convert the amount after the decimal point
if ($A _tmp[1]== "")
{
$C _cur. = ". 00";
}else
{
$I _len=strlen ($A _tmp[1]);
if ($I _len<2)
{
$C _cur. = ".". $A _tmp[1]. " 0 ";
}else
{
$C _cur. = ".". substr ($A _tmp[1],0,2);
}
}
Plus the renminbi sign and out
$C _cur= "￥". $C _cur;
return $C _cur;
}
//--------------------------------------------------
//-------------------------------------------------
Function name: windowlocation ($C _url, $C _get= "", $C _getother= "")
Role: window.location function in PHP
Parameters: $C _url The URL of the Steering window
$C _get Get method parameters
$C other parameters of the _getother get method
return value: String
Remark: None
//------------------------------------------------
function Windowlocation ($C _url, $C _get= "", $C _getother= "")
{
if ($C _get = = "" && $C _getother = = "")
if ($C _get = = "" && $C _getother <> "") {$C _target= "" window.location= ' $C _url?
$C _getother= ' +this.value ";}
if ($C _get <> "" && $C _getother = = "") {$C _target= "" window.location= ' $C _url?
$C _get ' "";}
if ($C _get <> "" && $C _getother <> "") {$C _target= "" window.location= ' $C _url?
$C _get& $C _getother= ' +this.value ";}
return $C _target;
}
//------------------------------------------------
?>
The above describes the Thunder high-speed Channel unlimited use of PHP universal detection function set, including the Thunder High-speed Channel unlimited use of content, I hope that the PHP tutorial interested friends helpful.
