如何重新初始化Neo4j查询？

Question

请告诉我哪个命令行可以帮助我重新初始化一个neo4j查询，为了解释更多，我有一个给所有用户节点的查询，第二个查询给出了节点，不幸的是，第二个查询记住了第一个查询的结果。

编辑0

下面是OP作为答案发布的附加信息的连接。对于有能力的人，请合并编辑并删除此注释。

编辑1

            <td>
            <select name=user>
            <?php
            $result1 = $client->sendCypherQuery("MATCH (n:$label1) return n")->getResult();
            $i=0;
            foreach ($result1->getNodes() as $nu){

                $n[$i]=$nu->getproperty('lastname');
                $i++;
            }
                while ($j<$i)
                {
                echo "<option value='$n[$j]'> $n[$j] </option>";
                $j=$j+1;
                }
                echo "</select>";

            ?>
            </td>
        </tr>
        <tr>
            <td>Nom dossier :</td>
            <td>
            <select name=folder>
            <?php
            $result2 = $client->sendCypherQuery("MATCH (n:$label2) return n")->getResult();
            $i=0;
            foreach ($result2->getNodes() as $nd){

                $d[$i]=$nd->getProperty('name');
                $i++;
            }
            $j=0;
                while ($j<$i)
                {
                echo "<option value='$d[$j]'> $d[$j] </option>";
                $j=$j+1;
                }
                echo "</select>";
            ?>
            </td>
        </tr>

编辑2

我有两个用户和两个文件夹。$result1应该返回用户，$result2应该返回文件夹。当我查找文件夹的大小时，我得到的是4，而不是2，所以查询总是记住第一个查询的结果。

编辑3

var_dump($result1)，我明白：

object(Neoxygen\NeoClient\Formatter\Result)  protected 'nodes' => 
array (size=2)
  7 => 
    object(Neoxygen\NeoClient\Formatter\Node)[796]
      protected 'id' => string '7' (length=1)
      protected 'labels' => 
        array (size=1)
          ...
      protected 'properties' => 
        array (size=6)
          ...
      protected 'inboundRelationships' => 
        array (size=0)
          ...
      protected 'outboundRelationships' => 
        array (size=0)
          ...
  9 => 
    object(Neoxygen\NeoClient\Formatter\Node)[797]
      protected 'id' => string '9' (length=1)
      protected 'labels' => 
        array (size=1)
          ...
      protected 'properties' => 
        array (size=6)
          ...
      protected 'inboundRelationships' => 
        array (size=0)
          ...
      protected 'outboundRelationships' => 
        array (size=0)
          ...   protected 'relationships' => 
array (size=0)
  empty   protected 'errors' => null 
  protected 'identifiers' => 
array (size=1)
  'n' => 
    array (size=2)
      0 => 
        object(Neoxygen\NeoClient\Formatter\Node)[796]
          ...
      1 => 
        object(Neoxygen\NeoClient\Formatter\Node)[797]
          ...

编辑4

和var_dump($result2)

object(Neoxygen\NeoClient\Formatter\Result)  protected 'nodes' => 
array (size=4)
  7 => 
    object(Neoxygen\NeoClient\Formatter\Node)[799]
      protected 'id' => string '7' (length=1)
      protected 'labels' => 
        array (size=1)
          ...
      protected 'properties' => 
        array (size=6)
          ...
      protected 'inboundRelationships' => 
        array (size=0)
          ...
      protected 'outboundRelationships' => 
        array (size=0)
          ...
  9 => 
    object(Neoxygen\NeoClient\Formatter\Node)[800]
      protected 'id' => string '9' (length=1)
      protected 'labels' => 
        array (size=1)
          ...
      protected 'properties' => 
        array (size=6)
          ...
      protected 'inboundRelationships' => 
        array (size=0)
          ...
      protected 'outboundRelationships' => 
        array (size=0)
          ...
  8 => 
    object(Neoxygen\NeoClient\Formatter\Node)[787]
      protected 'id' => string '8' (length=1)
      protected 'labels' => 
        array (size=1)
          ...
      protected 'properties' => 
        array (size=2)
          ...
      protected 'inboundRelationships' => 
        array (size=0)
          ...
      protected 'outboundRelationships' => 
        array (size=0)
          ...
  10 => 
    object(Neoxygen\NeoClient\Formatter\Node)[788]
      protected 'id' => string '10' (length=2)
      protected 'labels' => 
        array (size=1)
          ...
      protected 'properties' => 
        array (size=2)
          ...
      protected 'inboundRelationships' => 
        array (size=0)
          ...
      protected 'outboundRelationships' => 
        array (size=0)
          ...

编辑5

<?php    include 'connection.php'; 
$j=0;

$l=0;

$label1="user";

$label2="folder1";

?>
<br><br><br>    
<h3>Ajouter relation</h3>    
<form action='php/addlink.php' method=post>
    <table>
        <tr>
            <td>Nom utilisateur:</td>
            <td>
            <select name=user>
            <?php
            $result1 = $client->sendCypherQuery("MATCH (n:$label1) return n")->getResult();

            $i=0;
            foreach ($result1->getNodes() as $nu){

                $n[$i]=$nu->getproperty('lastname');
                $i++;
            }
                while ($j<$i)
                {
                echo "<option value='$n[$j]'> $n[$j] </option>";
                $j=$j+1;
                }
                echo "</select>";

            ?>
            </td>
        </tr>
        <tr>
            <td>Nom dossier :</td>
            <td>
            <select name=folder>
            <?php
            $result2 = $client->sendCypherQuery("MATCH (n:$label2) return n")->getResult();

            $i=0;
            foreach ($result2->getNodes() as $nd){

                $d[$i]=$nd->getid();
                $i++;
            }
            $j=0;
                while ($j<$i)
                {
                echo "<option value='$d[$j]'> $d[$j] </option>";
                $j=$j+1;
                }
                echo "</select>";
            ?>

Answer 1

这真的很奇怪，我创建了一个集成测试，它证明了在后续查询中不会重复结果：

https://github.com/neoxygen/neo4j-neoclient/blob/master/tests/Neoxygen/NeoClient/Tests/Issues/IssueSOResultDuplicationTest.php

所以我会看不同的位置：

1. 确保只有两个文件夹节点
2. 检查所有变量是否已重新初始化。
3. 查询中提供的标签。

注:你可以编辑你的原始问题，而不是创建多个答复。

我已经测试了您的代码，只需将标签替换为我的db中的标签，我只得到两个文件夹：

​

​

所以我会检查db内容，您能在浏览器中手动进行第二个查询吗？