吴旭晓个人博客 繁体中文 简体中文

<?php
$str = ‘百度abc’;
$en = javaEn($str);
echo $en;
echo “<br>”;
echo javaDe($en);

function javaEn($str) {
 $output = ”;
 $str = iconv(‘GBK’, ‘UTF-16BE’, $str);   
 for($i = 0; $i < strlen($str); $i+=2) {   
  $code = ord($str{$i}) * 256 + ord($str{$i + 1}); 
  $output .= ‘%u’.str_pad(dechex($code), 4, ’0′, STR_PAD_LEFT);
 }
 return $output;   
}

function javaDe($str) {
 preg_match_all(‘/%u0*([1-9a-e][0-9a-z]*)/’, $str, $arr);
 $return = ”;
 foreach($arr[1] as $v) {
  if(strlen($v) > 2) {
   $s = chr(hexdec(substr($v, 0, 2))).chr(hexdec(substr($v, 2)));
   $return .= iconv(‘UTF-16BE’, ‘GBK’, $s);
  } else {
   $return .= chr(hexdec($v));
  }
 }
 return $return;
 
}
?>