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直接调用 getInitials 函数即可
public function getInitials($str) {
$strResult = "";
$str = str_to_arr($str);
for ($i = 0; $i < count($str); $i ) {
$strResult .= strtoupper($this->getUni($str[$i]));
}
return $strResult;
}
private function getUni($ch) {
$uni = $this->charCodeAt($ch);
if ($uni > 40869 || $uni < 19968) {
return $ch;
}
$u = $this->getWorld($uni - 19968);
return $u;
}
private function charCodeAt($str, $from_encoding = false) {
$from_encoding = $from_encoding ? $from_encoding : 'UTF-8';
if (strlen($str) == 1) {
return ord($str);
}
$str = mb_convert_encoding($str, 'UCS-4BE', $from_encoding);
$tmp = unpack('N', $str);
return $tmp[1];
}