问题
The utf-8 charcode of Russian 'A' is 1040 (decimal). Javascript do it right:
> 'А'.charCodeAt(0)
> 1040
But PHP code
<?php echo ord('А');?>
returns 208.
Please note that in the beginning of the PHP code I have:
mb_internal_encoding( 'UTF-8' );
setlocale( LC_CTYPE, 'ru_RU' );
How can I implement coding and decoding of UTF-8 characters in PHP? Use another function instead of ord?
回答1:
<?php
mb_internal_encoding('UTF-8');
header('Content-Type: text/html; charset=UTF-8');
?>
<html>
<head>
<meta charset="UTF-8" />
</head>
<body>
<?php
$the_char = 'А';
$byte_1 = $the_char[0];
$byte_2 = $the_char[1];
print (ord($byte_1) - 192) * 64 + (ord($byte_2) - 128);
?>
</body>
</html>
回答2:
<?php
function ord_utf8($s){
return (int) ($s=unpack('C*',$s[0].$s[1].$s[2].$s[3]))&&$s[1]<(1<<7)?$s[1]:
($s[1]>239&&$s[2]>127&&$s[3]>127&&$s[4]>127?(7&$s[1])<<18|(63&$s[2])<<12|(63&$s[3])<<6|63&$s[4]:
($s[1]>223&&$s[2]>127&&$s[3]>127?(15&$s[1])<<12|(63&$s[2])<<6|63&$s[3]:
($s[1]>193&&$s[2]>127?(31&$s[1])<<6|63&$s[2]:0)));
}
print_r(ord_utf8('А'));
// Output 1040
You can found more explanations about it here https://stackoverflow.com/a/42600959/7558876
来源：https://stackoverflow.com/questions/22575085/php-function-ord-returns-wrong-code-of-cirilyc-charecter