PHP数组转XML，支持多维数组+属性+CDATA+格式化+数字下标处理+递归
特性
- 多维数据
- 可解析节点属性（请看最下面的示例中$orders的_attrs，和
- CDATA标签开关
- 可控缩进、换行 ($indent等于非空字符串时，会自动格式化+换行)
- 强制文字输出，忽略CDATA标签（例如
12/8/2011 21:56 PM , 方法：'OrderDate' => 'force_value:::12/8/2011 21:56 PM',） - 强制文字输出，不带标签（例如强制输出一段文字, 方法：'anyUniqueKey' => 'force_only_value:::',）
- 等等
前言
自己写的函数。请留意以下的约定：
- 节点的属性
- 数字下标处理：重复的order标签，例如<orders><order>..第一个..order><order>..第二个..order>orders>，需要数组orders下面定义一个纯数字下标的数组order，具体请看最下面的实例和结果；
- 函数写得有点费脑，转载时还请添加出处，谢谢理解。
- 拿去class里面用的话，需要修改函数中4处"array_to_xml"的递归调用为$this->array_to_xml()
函数
/**
* array_to_xml 可格式化数组转xml
*
* @author Rudon <[email protected]>
*
*
* 【支持】
* 1.多维数据
* 2.可解析属性标签（请看示例$orders的_attrs，和12/8/2011 21:56 PM , 方法：'OrderDate' => 'force_value:::12/8/2011 21:56 PM',）
* 6.强制文字输出，不带标签（例如强制输出一段文字, 方法：'anyKey' => 'force_only_value:::',）
*
*
* 【注意】
* 1. 不允许在$array的第一维数组全部使用纯数字的下标
* 2. 函数报错，是直接die('message');
* 3. 尚未妥善处理‘对象’变量
*
* 【实例】
* (如果全是纯数字的下标就当作数组，否则当作对象)
* $data = array(
* 'orders' => array(
* '_attrs' => array(
* 'pages' => 9,
* 'date' => '20190412'
* ),
* 'order' => array(
* 0 => array(
* 'id' => 1000,
* 'customer' => 'Michael Jackson',
* 'products' => array(
* 0 => array(
* 'pid' => 86572,
* 'name' => 'Hat in red'
* )
* )
* ),
* 1 => array(
* 'id' => 1001,
* 'customer' => 'John',
* 'products' => array(
* 0 => array(
* 'pid' => 471,
* 'name' => 'Mooncake'
* )
* )
* ) // #1
* ) // order
* ) // orders
* ); // $array
*
*
*
*/
function array_to_xml ($array, $current_depth = -1, $is_getting_more_info = false, $cdata_enabled = true, $indent = ' ', $force_key = '') {
$return = '';
$ch = '';
$body = '';
$labels_attrs = '_attrs';
$current_indent = str_repeat($indent, max(0, $current_depth));
$eol = ($indent != '')? PHP_EOL : ''; // End of line
/* Special case: $is_getting_more_info */
if($is_getting_more_info){
$return = array(
'attr_str_for_parent' => '',
'is_num_keys_only_for_itself' => false,
'checking_data' => $array
);
$attrs_str = ''; // Reset
if(is_array($array) && key_exists($labels_attrs, $array) && count($array[$labels_attrs])){
$attrs_arr = $array[$labels_attrs];
foreach ($attrs_arr as $ak => $av) {
$attrs_str .= ' '.$ak . '='. "'{$av}'";
}
}
$return['attr_str_for_parent'] = $attrs_str;
if(is_array($array)){
$is_num_keys_only = true;
foreach ($array as $k => $v) {
if($k != $labels_attrs && !is_int($k)){
$is_num_keys_only = false;
}
}
$return['is_num_keys_only_for_itself'] = $is_num_keys_only;
}
return $return;
}
/* Go */
if(!is_array($array)){
/* Not an array */
if(is_string($array)){
$body = ($cdata_enabled)? $ch.$array.$cf : $array;
if($array == ''){
$body = $array;
}
} elseif (is_bool($array)) {
$body = ($array)? 'TRUE':'FALSE';
} elseif (is_null($array)) {
$body = '';
} elseif (is_object($array)) {
$body = ($cdata_enabled)? $ch. json_encode($array) .$cf : json_encode($array);
} else {
$body = $array;
}
/* Special case: 'anyKey' => 'force_only_value:::' */
if(is_string($array) && stripos($array, 'force_only_value:::') === 0){
$body = $array;
} elseif (is_string($array) && stripos($array, 'force_value:::') === 0) {
$body = $array;
}
/* Value only */
$return = $body;
} else {
/* Is Array */
$depth_for_son = $current_depth + 1;
$indent_for_itself = str_repeat($indent, max(0, $current_depth));
$indent_for_son = str_repeat($indent, max(0, $depth_for_son));
$more_info_for_itself = array_to_xml($array, $current_depth, true);
if(key_exists($labels_attrs, $array)){
unset($array[$labels_attrs]);
}
$return = '';
foreach ($array as $k => $v) {
$more_info_for_son = array_to_xml($v, $depth_for_son, true);
$tag_header_for_son = '<'.$k.$more_info_for_son['attr_str_for_parent'].'>';
$tag_footer_for_son = '';
if($more_info_for_son['is_num_keys_only_for_itself']){
$body_for_son = array_to_xml($v, $current_depth, false, $cdata_enabled, $indent, $k);
$return .= $body_for_son;
} else {
if($force_key != ''){
$tag_header_for_son = '<'.$force_key.$more_info_for_son['attr_str_for_parent'].'>';
$tag_footer_for_son = '';
}
$body_for_son = array_to_xml($v, $depth_for_son, false, $cdata_enabled, $indent);
if(is_array($v)){
$return .= $indent_for_son.$tag_header_for_son.$eol.$body_for_son.$indent_for_son.$tag_footer_for_son;
} else {
$new_row = $indent_for_son.$tag_header_for_son.$body_for_son.$tag_footer_for_son;
/* Special case: 'anyKey' => 'force_only_value:::' */
if(is_string($body_for_son) && stripos($body_for_son, 'force_only_value:::') === 0){
$new_row = $indent_for_son . str_ireplace('force_only_value:::', '', $body_for_son);
} elseif (is_string($body_for_son) && stripos($body_for_son, 'force_value:::') === 0) {
$new_row = $indent_for_son.$tag_header_for_son.str_ireplace('force_value:::', '', $body_for_son).$tag_footer_for_son;;
}
$return .= $new_row;
}
}
$return .= $eol;
}
}
return $return;
}
实例及结果
'force_only_value:::',
'orders' => array(
'_attrs' => array(
'pages' => 10
),
'Order' => array(
0 => array(
'OrderID' => '123456',
'OrderNumber' => 'ABC123',
'OrderDate' => 'force_value:::12/8/2011 21:56 PM',
'OrderStatus' => 'paid',
'LastModified' => 'force_value:::12/8/2011 12:56 PM',
'ShippingMethod' => 'USPSPriorityMail',
'PaymentMethod' => 'Credit Card',
'OrderTotal' => 'force_value:::123.45',
'TaxAmount' => 'force_value:::0.00',
'ShippingAmount' => 'force_value:::4.50',
'CustomerNotes' => 'Please make sure it gets here by Dec. 22nd!',
'InternalNotes' => 'Ship by December 18th via Priority Mail.',
'Gift' => false,
'GiftMessage' => '',
'CustomField1' => '',
'CustomField2' => '',
'CustomField3' => '',
'Customer' => array(
'CustomerCode' => '[email protected]',
'BillTo' => array(
'Name' => 'The President',
'Company' => 'US Govt',
'Phone' => '512-555-5555',
'Email' => '[email protected]',
),
'ShipTo' => array(
'Name' => 'The President',
'Company' => 'US Govt',
'Address1' => '1600 Pennsylvania Ave',
'Address2' => '',
'City' => 'Washington',
'State' => 'DC',
'PostalCode' => '20500',
'Country' => 'US',
'Phone' => '512-555-5555'
)
),
'Items' => array(
'Item' => array(
0 => array(
'SKU' => 'FD88821',
'Name' => 'My Product Name',
'ImageUrl' => 'http://www.mystore.com/products/12345.jpg',
'Weight' => 8,
'WeightUnits' => 'force_value:::Ounces',
'Quantity' => 2,
'UnitPrice' => 'force_value:::13.99',
'Location' => 'A1-B2',
'Options' => array(
'Option' => array(
0 => array(
'Name' => 'Size',
'Value' => 'Large',
'Weight' => 10
),
1 => array(
'Name' => 'Color',
'Value' => 'Green',
'Weight' => 5
)
)
),
),
1 => array(
'SKU' => '',
'Name' => '$10 OFF',
'Quantity' => 1,
'UnitPrice' => 'force_value:::-10.00',
'Adjustment' => true
)
)
)
),
)
)
);
// array_to_xml ($array, $current_depth = -1, $is_getting_more_info = false, $cdata_enabled = true, $indent = ' ', $force_key = ''
$xml = array_to_xml($data);
$xml = htmlspecialchars($xml); // 强制显示所有的内容
echo '';
echo $xml;
echo '';
die();
谢谢使用～