How to obtain constellation and zodiac signs using ID card numbers in PHP

PHP uses the ID card number to obtain constellation and zodiac signs. a Practical PHP function The code is as follows:
// PHP automatically obtains the corresponding Constellation function based on the ID card number
Function get_xingzuo ($ cid) {// automatically returns the corresponding Constellation based on the ID card number
If (! IsIdCard ($ cid) return '';
$ Bir = substr ($ cid, 10, 4 );
$ Month = (int) substr ($ bir, 0, 2 );
$ Day = (int) substr ($ bir, 2 );
$ StrValue = '';
If ($ month = 1 & $ day> = 20) | ($ month = 2 & $ day <= 18 )){
$ StrValue = "Aquarius ";
} Else if ($ month = 2 & $ day> = 19) | ($ month = 3 & $ day <= 20 )){
$ StrValue = "Pisces ";
} Else if ($ month = 3 & $ day> 20) | ($ month = 4 & $ day <= 19 )){
$ StrValue = "Aries ";
} Else if ($ month = 4 & $ day> = 20) | ($ month = 5 & $ day <= 20 )){
$ StrValue = "Taurus ";
} Else if ($ month = 5 & $ day> = 21) | ($ month = 6 & $ day <= 21 )){
$ StrValue = "Gemini ";
} Else if ($ month = 6 & $ day> 21) | ($ month = 7 & $ day <= 22 )){
$ StrValue = "cancer ";
} Else if ($ month = 7 & $ day> 22) | ($ month = 8 & $ day <= 22 )){
$ StrValue = "Leo ";
} Else if ($ month = 8 & $ day> = 23) | ($ month = 9 & $ day <= 22 )){
$ StrValue = "Virgo ";
} Else if ($ month = 9 & $ day> = 23) | ($ month = 10 & $ day <= 23 )){
$ StrValue = "Libra ";
} Else if ($ month = 10 & $ day> 23) | ($ month = 11 & $ day <= 22 )){
$ StrValue = "Scorpio ";
} Else if ($ month = 11 & $ day> 22) | ($ month = 12 & $ day <= 21 )){
$ StrValue = "Sagittarius ";
} Else if ($ month = 12 & $ day> 21) | ($ month = 1 & $ day <= 19 )){
$ StrValue = "Capricorn ";
}
Return $ strValue;

}
Function get_shengxiao ($ cid) {// The ID card number automatically returns the corresponding Chinese Zodiac
If (! IsIdCard ($ cid) return '';
$ Start = 1901;
$ End = (int) substr ($ cid, 6, 4 );
$ X = ($ start-$ end) % 12;
$ Value = "";
If ($ x = 1 | $ x =-11) {$ value = "rat ";}
If ($ x = 0) {$ value = "";}
If ($ x = 11 | $ x =-1) {$ value = "Tiger ";}
If ($ x = 10 | $ x =-2) {$ value = "rabbit ";}
If ($ x = 9 | $ x =-3) {$ value = "Dragon ";}
If ($ x = 8 | $ x =-4) {$ value = "snake ";}
If ($ x = 7 | $ x =-5) {$ value = "horse ";}
If ($ x = 6 | $ x =-6) {$ value = "goat ";}
If ($ x = 5 | $ x =-7) {$ value = "monkey ";}
If ($ x = 4 | $ x =-8) {$ value = "chicken ";}
If ($ x = 3 | $ x =-9) {$ value = "dog ";}
If ($ x = 2 | $ x =-10) {$ value = "";}
Return $ value;
}
Function get_xingbie ($ cid) {// automatically returns gender based on ID card number
If (! IsIdCard ($ cid) return '';
$ Sexint = (int) substr ($ cid, 16, 1 );

Return $ sexint % 2 === 0? Female: male ';
}
Function isIdCard ($ number) {// check whether it is an ID card number
// Convert to uppercase, if x appears
$ Number = strtoupper ($ number );
// Weighting factor
$ Wi = array (7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 );
// Check code string
$ Ai = array ('1', '0', 'X', '9', '8', '7', '6', '5 ', '4', '3', '2 ');
// Process the first 17 digits in a sequential loop
$ Sigma = 0;
For ($ I = 0; $ I <17; $ I ++ ){
// Extract one of the first 17 digits and convert the variable type into a real number
$ B = (int) $ number {$ I };

// Extract the corresponding weighting factor
$ W = $ wi [$ I];

// Multiply the number extracted from the ID card number and the weighting factor, and accumulate
$ Sigma + = $ B * $ w;
}
// Calculates the serial number.
$ Snumber = $ sigma % 11;

// Extract the corresponding characters from the check string according to the serial number.
$ Check_number = $ ai [$ snumber];

If ($ number {17 }==$ check_number ){
Return true;
} Else {
Return false;
}
}
?>