![PHP开发实例大全(提高卷) 中文完整pdf扫描版[244MB]](http://www.3qphp.com/uploadfile/2019/1205/thumb_90_60_1IK62NB0.jpg)
PHP开发实例大全(提高卷) 中文完整pdf扫描版[244MB]
function utf8_bytes($cp){
if ($cp > 0x10000){
# 4 bytes
return chr(0xF0 | (($cp & 0x1C0000) >> 18)).
chr(0x80 | (($cp & 0x3F000) >> 12)).
chr(0x80 | (($cp & 0xFC0) >> 6)).
chr(0x80 | ($cp & 0x3F));
}else if ($cp > 0x800){
# 3 bytes
return chr(0xE0 | (($cp & 0xF000) >> 12)).
chr(0x80 | (($cp & 0xFC0) >> 6)).
chr(0x80 | ($cp & 0x3F));
}else if ($cp > 0x80){
# 2 bytes
return chr(0xC0 | (($cp & 0x7C0) >> 6)).
chr(0x80 | ($cp & 0x3F));
}else{
# 1 byte
return chr($cp);
}
}
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