Question

我正在使用PHP来解析XML，并希望使用XPATH根据系统和前端值条件返回唯一的部分值。

XML：

<?xml version="1.0" encoding="utf-8"?>
<language>
    <phrase section="Url" system="0" front="1" data="_URL_M1">invoice</phrase>
    <phrase section="Url" system="0" front="1" data="_URL_M2">view</phrase>
    <phrase section="Invoice" system="1" front="0" data="_MOD_IM1">System1</phrase>
    <phrase section="Invoice" system="1" front="0" data="_MOD_IM2">System2</phrase>
    <phrase section="Invoice" system="0" front="1" data="_MOD_IM3">Front1</phrase>
    <phrase section="Invoice" system="0" front="1" data="_MOD_IM4">Front2</phrase>
    <phrase section="Invoice" system="1" front="1" data="_MOD_IM5">System and Front</phrase>
</language>

所以我的部分Url只显示在前面= 1和部分Invoice的位置，显示前面= 1，前面和系统（两者）= 1。需要显示部分明显。

PHP：

$xmlel = simplexml_load_file(BASEPATH . self::langdir . $flag . "/" . $filename . ".xml");

$query_system = '/language/phrase[@system="1" and @front="0" and not(@section = preceding-sibling::phrase/@section)]/@section';

$query_front = '/language/phrase[@system="0" and @front="1" and not(@section = preceding-sibling::phrase/@section)]/@section';

$query_both = '/language/phrase[@system="1" and @front="1" and not(@section = preceding-sibling::phrase/@section)]/@section';

使用当前代码，我得到了这个：

系统：$xmlel->xpath($query_system)

Array
(
[0] => SimpleXMLElement Object
    (
        [@attributes] => Array
            (
                [section] => Invoice
            )

    )
)

正面：$xmlel->xpath($query_front)

Array
(
[0] => SimpleXMLElement Object
    (
        [@attributes] => Array
            (
                [section] => Url
            )

    )
)

两者：$xmlel->xpath($query_both)

Array
(
)

我想要实现的目标：

系统：

Array
(
[0] => SimpleXMLElement Object
    (
        [@attributes] => Array
            (
                [section] => Invoice
            )

    )
)

前：

Array
(
[0] => SimpleXMLElement Object
    (
        [@attributes] => Array
            (
                [section] => Url
            )

    )
)
[1] => SimpleXMLElement Object
    (
        [@attributes] => Array
            (
                [section] => Invoice
            )

    )
)

这两种：

Array
(
[0] => SimpleXMLElement Object
    (
        [@attributes] => Array
            (
                [section] => Invoice
            )

    )
)

如何获得明确的section
其中：system = 1，
其中front = 1
以及system和front = 1

的位置

Answer 1

好的，所以我得出结论，我还需要调整前兄弟：

$query_system = '/language/phrase[@system="1" and @front="0" and not(@section = preceding-sibling::*[@system="1" and @front="0"]/@section)]/@section';
$query_front = '/language/phrase[@system="0" and @front="1" and not(@section = preceding-sibling::*[@system="0" and @front="1"]/@section)]/@section';
$query_both = '/language/phrase[@system="1" and @front="1" and not(@section = preceding-sibling::*[@system="1" and @front="1"]/@section)]/@section';

PHP和XPath按条件获得不同的属性

1 个答案: