Php does not use regular expressions to verify true and false ID card _ PHP Tutorial

Php does not need regular expressions to verify true and false ID cards. Let's look at the code directly. a simple PHP class copies the code as follows :? Php $ IDCardnewIDCard (); var_dump ($ IDCard: isCard ($ _ GET [card]); you can directly view the code for the *** ID card processing class ** classIDC, A simple PHP class

The code is as follows:

$ IDCard = new IDCard ();
Var_dump ($ IDCard: isCard ($ _ GET ['card ']);

/**
* Id card processing
*/
Class IDCard {

// Check whether the ID card is correct
Public static function isCard ($ card ){
$ Card = self: to18Card ($ card );
If (strlen ($ card )! = 18 ){
Return false;
}

$ CardBase = substr ($ card, 0, 17 );

Return (self: getVerifyNum ($ cardBase) = strtoupper (substr ($ card, 17, 1 )));
}


// Format the 15-digit ID card number to 18
Public static function to18Card ($ card ){
$ Card = trim ($ card );

If (strlen ($ card) = 18 ){
Return $ card;
}

If (strlen ($ card )! = 15 ){
Return false;
}

// If the ID card sequence code is 996 997 998 999, these are special codes for elderly people over years old
If (array_search (substr ($ card, 12, 3), array ('20160301', '20160301', '20160301 '))! = False ){
$ Card = substr ($ card, 0, 6). '18'. substr ($ card, 6, 9 );
} Else {
$ Card = substr ($ card, 0, 6). '19'. substr ($ card, 6, 9 );
}
$ Card = $ card. self: getVerifyNum ($ card );
Return $ card;
}

// Calculate the ID card verification code based on the national standard gb 11643-1999
Private static function getVerifyNum ($ cardBase ){
If (strlen ($ cardBase )! = 17 ){
Return false;
}
// Weighting factor
$ Factor = array (7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 );

// Check code value
$ Verify_number_list = array ('1', '0', 'X', '9', '8', '7', '6', '5 ', '4', '3', '2 ');

$ Checksum = 0;
For ($ I = 0; $ I <strlen ($ cardBase); $ I ++ ){
$ Checksum + = substr ($ cardBase, $ I, 1) * $ factor [$ I];
}

$ Mod = $ checksum % 11;
$ Verify_number = $ verify_number_list [$ mod];

Return $ verify_number;
}
}

?>

The pipeline code is as follows :? Php $ IDCard = new IDCard (); var_dump ($ IDCard: isCard ($ _ GET ['card ']); /*** ID card processing class */class IDC...