问如何使用PHP将阿拉伯语文本转换为十六进制

EN

<?php
$str = '06450631062D06280627';
for($i = 0; $i < strlen($str)/4; $i++) {
  echo "&#x", substr($str, 4*$i, 4), ";";
}
?>

$str = "Some Hexa String";
$replacedString = preg_replace("/\\\\u([0-9abcdef]{4})/", "&#x$1;", $str);
$unicodeString = mb_convert_encoding($replacedString, 'UTF-8', 'HTML-ENTITIES');

bin2hex($str);       // Bin to Hex
pack("H*", $hexStr); // Hex to Bin