neo4jphp异常：未捕获异常'；普通人\Neo4j\Exception'；带有消息'；无法检索服务器信息[500]'；

我正在尝试将neo4j连接到php。我正在windows上使用XAMPP服务器

我发现了一个和我类似的问题。

根据上面链接中给出的解决方案，我得到以下错误

       Fatal error: Undefined constant 'Everyman\Neo4j\Transport\Curl' in C:\xampp\htdocs\con1.php on line 4

我试图通过命令行运行php neo4jphp.phar，但出现以下错误

            Fatal error: Uncaught exception 'Everyman\Neo4j\Exception' with message 'Unable to retrieve server info [500]:
            Headers: Array
            (
            )
            Body: Array
            (
                [error] => Could not resolve host: 7474 [6]
            )
            ' in phar://C:/xampp/php/neo4jphp.phar/lib/Everyman/Neo4j/Command.php:116
            Stack trace:
            #0 phar://C:/xampp/php/neo4jphp.phar/lib/Everyman/Neo4j/Command/GetServerInfo.php(52): Everyman\Neo4j\Command->throwExce
            ption('Unable to retri...', 500, Array, Array)
            #1 phar://C:/xampp/php/neo4jphp.phar/lib/Everyman/Neo4j/Command.php(69): Everyman\Neo4j\Command\GetServerInfo->handleRes
            ult(500, Array, Array)
            #2 phar://C:/xampp/php/neo4jphp.phar/lib/Everyman/Neo4j/Client.php(587): Everyman\Neo4j\Command->execute()
            #3 phar://C:/xampp/php/neo4jphp.phar/lib/Everyman/Neo4j/Client.php(360): Everyman\Neo4j\Client->runCommand(Object(Everym
            an\Neo4j\Command\GetServerInfo))
            #4 C:\xampp\php\neo4jphp.phar(45): Everyman\Neo4j\Client->getServerInfo()
            #5 {main}
              thrown in phar://C:/xampp/php/neo4jphp.phar/lib/Everyman/Neo4j/Command.php on line 116

                Fatal error: Uncaught exception 'Everyman\Neo4j\Exception' with message 'Unable to retrieve server info [500]: 
            Headers: Array ( ) Body: Array ( [error] => Failed connect to localhost:7474; No error [7] ) 
            ' in phar://C:/xampp/htdocs/neo4jphp.phar/lib/Everyman/Neo4j/Command.php:116 Stack trace: 
            #0 phar://C:/xampp/htdocs/neo4jphp.phar/lib/Everyman/Neo4j/Command/GetServerInfo.php(52): Everyman\Neo4j\Command->throwException('Unable to retri...', 500, Array, Array) 
            #1 phar://C:/xampp/htdocs/neo4jphp.phar/lib/Everyman/Neo4j/Command.php(69): Everyman\Neo4j\Command\GetServerInfo->handleResult(500, Array, Array) 
            #2 phar://C:/xampp/htdocs/neo4jphp.phar/lib/Everyman/Neo4j/Client.php(587): Everyman\Neo4j\Command->execute() 
            #3 phar://C:/xampp/htdocs/neo4jphp.phar/lib/Everyman/Neo4j/Client.php(360): Everyman\Neo4j\Client->runCommand(Object(Everyman\Neo4j\Command\GetServerInfo)) 
            #4 C:\xampp\htdocs\con1.php(9): Everyman\Neo4j\Client->getServerInfo() 
            #5 {main} thrown in phar://C:/xampp/htdocs/neo4jphp.phar/lib/Everyman/Neo4j/Command.php on line 116                         

另外，当我运行以下代码时

<?php
      use Everyman\Neo4j\Client,
          Everyman\Neo4j\Transport;
      require('neo4jphp.phar');
          $client = new Client(new Transport('localhost', 7474)); 
          print_r($client->getServerInfo());
          ?>

---

可能是什么错误？

您的neo4j服务器是否已启动并正在运行？我从未意识到要检查：（，无论如何，非常感谢。启动服务器后，我的连接现在工作正常。：）PHAR文件已弃用且非常过时。我建议将来使用Composer安装库。