php json_encode实现与中文乱码解决方法
php 中使用 json_encode() 内置函数(php > 5.2)可以使用得 php 中数据可以与其它语言很好的传递并且使用它,这个函数的功能是将数值转换成json数据存储格式.
<?php $arr = array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5); echo json_encode($arr); //结果 //{"a":1,"b":2,"c":3,"d":4,"e":5} ?>
下面看一款json_encode中文乱码问题:
解决方法是用urlencode()函数处理以下,在json_encode之前,把所有数组内所有内容都用urlencode()处理一下,然用json_encode()转换成json字符串,最后再用urldecode()将编码过的中文转回来.
<?php function arrayrecursive(&$array, $function, $apply_to_keys_also = false) { static $recursive_counter = 0; if (++$recursive_counter > 1000) { die('possible deep recursion attack'); } foreach ($array as $key => $value) { if (is_array($value)) { arrayrecursive($array[$key], $function, $apply_to_keys_also); } else { $array[$key] = $function($value); } if ($apply_to_keys_also && is_string($key)) { $new_key = $function($key); if ($new_key != $key) { $array[$new_key] = $array[$key]; unset($array[$key]); } } } $recursive_counter--; } /************************************************************** * * 将数组转换为json字符串(兼容中文) * @param array $array 要转换的数组 * @return string 转换得到的json字符串 * @access public * *************************************************************/ function json($array) { arrayrecursive($array, 'urlencode', true); $json = json_encode($array); return urldecode($json); } $array = array( 'name' => '希亚', 'age' => 20 ); echo json($array); ?>
应用实例:
<?php $servname = "localhost"; $sqlservname = "root"; $sqlservpws = "123456"; $sqlname = "lock1"; $db = mysql_connect($servname, $sqlservname, $sqlservpws) or die("数据库连接失败"); mysql_select_db($sqlname, $db); $sql = "select * from t_operater"; $result = mysql_query($sql); $rows = mysql_num_rows($result); while ($obj = mysql_fetch_object($result)) { $arr[] = $obj; } echo '({"total":"' . $rows . '","results":' . json_encode($arr) . '})'; ?>

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