When Unicode semantics are enabled, you can use the \uXXXX and
\UXXXXXX escape sequences to specific Unicode code points
<?php // script is encoded in UTF-8
$str = "金 is equivalent with \u91d1<br/>\n";
echo $str, "<br/>\n";
echo "𐂃 is equivalent with:<br/>\n";
echo "- \U010083<br/>\n";
echo "- \C{LINEAR B IDEOGRAM B105 EQUID}";
?>
Output
金 is equivalent with \u91d1
𐂃 is equivalent with:
- \U010083
- \C{LINEAR B IDEOGRAM B105 EQUID}
𐂃 is equivalent with:
- \U010083
- \C{LINEAR B IDEOGRAM B105 EQUID}