Location code input method: Analysis of source code application examples for converting Chinese characters to location codes in PHP

Copy code The code is as follows:

global $PHP_SELF;
//echo $PHP_SELF;
$t1=$_POST['textfield1'];
$t2=$_POST['textfield2 '];
$t3=$_POST['textfield3'];
$t4=$_POST['textfield4'];
// Chinese characters--location code
if($t1!=""){
$t2= sprintf("%02d%02d",ord($t1[0])-160,ord($t1[1])-160);
//echo $t2;
}
// Area code--Chinese characters
if($t3!=""){
$t4 = chr(substr($t3,0,2)+160).chr(substr($t3,2,2)+160);
//echo $t4 ;
}
?>
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