PHP如何将JSON转换为XML？

PHP如何将JSON转换为XML？

首先使用“file_get_content()”函数将JSON数据读取出来；

$json = file_get_contents('./data.js');

然后使用函数“json_decode()”将数据进行解码；

$data = json_decode($json, true);

接着循环数据拼接成XML字符串；最后写入文件中即可。

$string=""; foreach($data as $k=>$v){     $string .="<".$k.">";     //取得标签数据         $string .=$v;     $string .="</".$k.">";  }

封装示例

<?php$json = stream_get_contents(STDIN);$data = @json_decode($json, false);if (!is_array($data) && !is_object($data)) {    echo 'ERROR: Invalid JSON given' . PHP_EOL;    exit(1);}class Exporter{    private $root = 'document';    private $indentation = '    ';    // TODO: private $this->addtypes = false; // type="string|int|float|array|null|bool"    public function export($data)    {        $data = array($this->root => $data);        echo '<?xml version="1.0" encoding="UTF-8">';        $this->recurse($data, 0);        echo PHP_EOL;    }    private function recurse($data, $level)    {        $indent = str_repeat($this->indentation, $level);        foreach ($data as $key => $value) {            echo PHP_EOL . $indent . '<' . $key;            if ($value === null) {                echo ' />';            } else {                echo '>';                if (is_array($value)) {                    if ($value) {                        $temporary = $this->getArrayName($key);                        foreach ($value as $entry) {                            $this->recurse(array($temporary => $entry), $level + 1);                        }                        echo PHP_EOL . $indent;                    }                } else if (is_object($value)) {                    if ($value) {                        $this->recurse($value, $level + 1);                        echo PHP_EOL . $indent;                    }                } else {                    if (is_bool($value)) {                        $value = $value ? 'true' : 'false';                    }                    echo $this->escape($value);                }                echo '</' . $key . '>';            }        }    }    private function escape($value)    {        // TODO:        return $value;    }    private function getArrayName($parentName)    {        // TODO: special namding for tag names within arrays        return $parentName;    }}$exporter = new Exporter();$exporter->export($data);