Question

我尝试用HTML / PHP / XML构建一个简单的聊天机器人。大脑＆＃39;是用XML构建的。将通过AJAX提交一个html表单，调用searchBrain.php。问题是，当提交表单时，searchBrain不会查询我的brain.xml文件。有人可以给我一些帮助吗？

brain.xml

<?xml version="1.0" encoding="UTF-8"?>
<brain>
    <neuron>
        <id>1</id>
        <input>wie ben jij?</input>
        <code></code>
        <output>Ik ben Skye</output>
        <keywords>wie,ben,jij,Wie,?</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>2</id>
        <input>hoe gaat het?</input>
        <code></code>
        <output>Met mij gaat het goed. Hoe gaat het me u?</output>
        <keywords>hoe,gaat,het,Hoe,?</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>3</id>
        <input>wat ben jij?</input>
        <code></code>
        <output>Ik ben het laatste resultaat in kunstmatige intelligentie die de functies van het menselijk brein kan reproduceren met een grotere snelheid en nauwkeurigheid.</output>
        <keywords>wat,ben,jij,Wat,?</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>4</id>
        <input>hoe zie jij er uit?</input>
        <code></code>
        <output></output>
        <keywords>hoe,zie,jij,er,uit,Hoe,?</keywords>
        <image><!-- insert binary.jpg from imgLib --></image>
    </neuron>
    <neuron>
        <id>5</id>
        <input>stel jezelf even voor</input>
        <code></code>
        <output>Hoi ik ben Skye, ik ben online gegaan op 17-02-2016.Ik ben het laatste resultaat in kunstmatige intelligentie die de functies van het menselijk brein kan reproduceren met een grotere snelheid en nauwkeurigheid.</output>
        <keywords>stel,jezelf,even,voor</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>6</id>
        <input>Welke dag is het vandaag?</input>
        <code><!-- PHP code om huidige dag weer te geven --></code>
        <output>Vandaag is het </output>
        <keywords>welke,dag,is,het,vandaag,?</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>7</id>
        <input>wanneer ben je jarig?</input>
        <code></code>
        <output>Ik ben online gegaan op 17 Februari, dus ik ben jarig op 17 Februari :-)</output>
        <keywords>wanneer,ben,je,jarig,?</keywords>
        <image><!-- jarig.jpeg from imgLib --></image>
    </neuron>
</brain>

searchBrain.php

<?php 

    //Create DOMDocument based on XML
    $dom = new DOMDocument();

    // We don't want to bother with white spaces
    $dom->preserveWhiteSpace = false;

    //Load brain.xml
    $dom->Load('brain.xml');

    //Get POST value
    $sentence = $_POST['sentence'];

    //Lowercase the XML so non case sensitive search is possible
    $xml = strtolower($xml);

    //Create XPath based on the DOM Document to search it
    $xpath = new DOMXpath($dom);

    //Define keywords for search
    $searchKeywords = array($sentence);

    //Iterate all of them to make them into valid XPath
    $searchKeywords = array_map(
    function($keyword){
        //Replace any single quotes with an escaped single quote
        $keyword = str_replace('\'','\\\'',$keyword);
        return 'contains(.,\''.$keyword.'\')';
    },
    $searchKeywords
    );

    //Implode all the keywords using and, could 
    //be changed to be an "or" condition if needed
    $searchKeywords = implode(' and ',$searchKeywords);

    //The search keywords now look like contains(.,'good') and
    //contains(.,'hello')

    //Search for any neuron tag that contains the text
    //submitted by the from
    $nodes = $xpath->query('//keywords['.$searchKeywords.']');

    //Iterate all nodes
    foreach($nodes as $node){
        //Find the output node an print its content
        var_dump($xpath->query('output',$node)->item[3]->textContent);
    }

?>

和index.php

<!DOCTYPE html>
<head>
    <title>Skye</title>
    <script src="jquery-2.1.4.js"></script>

    <script>
    $(document).ready(function() {
        $("#Skye").submit(function(e){
            var url = "searchBrain.php";

            $.ajax({
                type: "POST",
                url: url,
                data: $("#Skye").serialize(),
                success: function(response){
                    $("#result").html(response); 
                    //alert(response);
                }
            });
            e.preventDefault();
        });
    });
    </script>

    <link rel="stylesheet" type="text/css" href="gui/css/skye.css" />
</head>
<body>

    <h1>Skye</h1>

    <div id="result"></div>

    <form id="Skye" name="Skye" method="POST" >
        <input type="text" id="sentence" name="sentence" autofocus="autofocus" />
        <input type="submit" id="display" value="Stuur..." />
    </form>



</body>
</html>

Answer 1

我发现你的查询有问题。如果您正在寻找完全匹配并想要父节点，则需要：

$nodes = $xpath->query('//neuron/keywords[contains(text(), "wanneer") and contains(text(), "gaat")]/..');

所以你要用上面的内容替换implode(' and ', $searchKeywords)。

您也可以像下面的评论员一样简写上述语法：

$nodes = $xpath->query('//neuron[keywords[contains(., "wanneer") or contains(., "gaat")]]');

它做了什么？

然后查看每个神经元，然后搜索<keywords>的文本值是否具有您要查找的内容，/..就像一个基本上返回父级的文件路径。很漂亮。现在，您可以获得<output>代码。

//Iterate all nodes
foreach($nodes as $node){
    //Find the output node an print its content
    var_dump($xpath->query('output',$node)->item(0)->textContent);
}

这是我测试过的完整代码。您可以将其粘贴到测试文件中以查看结果并进行修补，以便将其用于脚本。

<?php

$xml = xml_str();
$dom = new DOMDocument();
$dom->loadXML($xml);

$xpath= new DOMXPath($dom);
$nodes = $xpath->query('//neuron/keywords[contains(text(), "wanneer") or contains(text(), "gaat")]/..');

foreach ($nodes as $node) {
    var_dump($xpath->query('output', $node)->item(0)->textContent);
}

function xml_str()
{
    return <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<brain>
    <neuron>
        <id>1</id>
        <input>wie ben jij?</input>
        <code></code>
        <output>Ik ben Skye</output>
        <keywords>wie,ben,jij,Wie,?</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>2</id>
        <input>hoe gaat het?</input>
        <code></code>
        <output>Met mij gaat het goed. Hoe gaat het me u?</output>
        <keywords>hoe,gaat,het,Hoe,?</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>3</id>
        <input>wat ben jij?</input>
        <code></code>
        <output>Ik ben het laatste resultaat in kunstmatige intelligentie die de functies van het menselijk brein kan reproduceren met een grotere snelheid en nauwkeurigheid.</output>
        <keywords>wat,ben,jij,Wat,?</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>4</id>
        <input>hoe zie jij er uit?</input>
        <code></code>
        <output></output>
        <keywords>hoe,zie,jij,er,uit,Hoe,?</keywords>
        <image><!-- insert binary.jpg from imgLib --></image>
    </neuron>
    <neuron>
        <id>5</id>
        <input>stel jezelf even voor</input>
        <code></code>
        <output>Hoi ik ben Skye, ik ben online gegaan op 17-02-2016.Ik ben het laatste resultaat in kunstmatige intelligentie die de functies van het menselijk brein kan reproduceren met een grotere snelheid en nauwkeurigheid.</output>
        <keywords>stel,jezelf,even,voor</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>6</id>
        <input>Welke dag is het vandaag?</input>
        <code><!-- PHP code om huidige dag weer te geven --></code>
        <output>Vandaag is het </output>
        <keywords>welke,dag,is,het,vandaag,?</keywords>
        <image></image>
    </neuron>
    <neuron>
        <id>7</id>
        <input>wanneer ben je jarig?</input>
        <code></code>
        <output>Ik ben online gegaan op 17 Februari, dus ik ben jarig op 17 Februari :-)</output>
        <keywords>wanneer,ben,je,jarig,?</keywords>
        <image><!-- jarig.jpeg from imgLib --></image>
    </neuron>
</brain>
XML;
}
?>

XPath查询不返回答案

1 个答案: