如何使用PHP读取XML输出

Question

我正在尝试阅读下面列出的XML输出：

SimpleXMLElement Object
(
   [merchant] => SimpleXMLElement Object
        (
            [merchant-id] => SimpleXMLElement Object
                (
                )
            [merchant-name] => Snip-Its
            [merchant-category] => Hair
            [merchant-website] => www.snipits.com
        )

    [store] => SimpleXMLElement Object
        (
            [store-id] => 173DFBB7-67F6-DE11-AD5B-0026B953348A
            [store-name] => Heb
            [store-number] => 0109
        )

    [coupon] => SimpleXMLElement Object
        (
            [coupon-id] => 385748
            [coupon-address] => 14096 Memorial Drive
            [coupon-city] => Houston
            [coupon-state] => TX
        )
)

使用PHP脚本，如下所示，但我得到的值为'0'：

foreach( $data->coupons as $mycoupon ) {    
      $address = $mycoupon->coupon->coupon-address;     
    //print_r($mycoupon); 
}

所以，请帮助我理解如何阅读SimpleXMLElement对象的值并将它们分配给局部变量。

Answer 1

某些字符不允许用于PHP的命名约定，例如连字符。要处理这个问题，只需将元素名称括在括号中作为字符串：

$address = $mycoupon->coupon->{'coupon-address'};

试一试。