Question

我知道这个话题是重复性的，但是我做不到... ir在我的cmd中运行

C：\ Users \ Asus>作曲家需要graphaware / neo4j-php-client

我使用以下代码：

   <?php
/**
 * To install Neo4j-PHP-Client, we use Composer
 *
 * $ curl -sS https://getcomposer.org/installer | php
 * $ php composer.phar require graphaware/neo4j-php-client
 *
 */

require 'C:\Users\Asus\vendor\autoload.php';

use GraphAware\Neo4j\Client\ClientBuilder;

// change to your hostname, port, username, password
$neo4j_url = "neo4j@bolt://localhost:11004";

// setup connection
$client = ClientBuilder::create()
    ->addConnection('default', $neo4j_url)
    ->build();

// setup data
$insert_query = <<<EOQ
UNWIND {pairs} as pair
MERGE (p1:Person {name:pair[0]})
MERGE (p2:Person {name:pair[1]})
MERGE (p1)-[:KNOWS]-(p2);
EOQ;

// friend data to insert
$data = [["Jim","Mike"],["Jim","Billy"],["Anna","Jim"],
    ["Anna","Mike"],["Sally","Anna"],["Joe","Sally"],
    ["Joe","Bob"],["Bob","Sally"]];

// insert data
$client->run($insert_query, ["pairs" => $data]);


// friend of friend: query
$foaf_query = <<<EOQ
MATCH (person:Person)-[:KNOWS]-(friend)-[:KNOWS]-(foaf)
WHERE person.name = {name}
  AND NOT (person)-[:KNOWS]-(foaf)
RETURN foaf.name AS name
EOQ;

// friend of friend: build and execute query
$params = ['name' => 'Joe'];
$result = $client->run($foaf_query, $params);

foreach ($result->records() as $record) {
    echo $record->get('name') . PHP_EOL;
}


// common friends: query
$common_friends_query = <<<EOQ
MATCH (user:Person)-[:KNOWS]-(friend)-[:KNOWS]-(foaf:Person)
WHERE user.name = {user} AND foaf.name = {foaf}
RETURN friend.name AS friend
EOQ;

// common friends: build and execute query
$params = ['user' => 'Joe', 'foaf' => 'Sally'];
$result = $client->run($common_friends_query, $params);

foreach ($result->records() as $record) {
    echo $record->get('friend') . PHP_EOL;
}


// connecting paths: query
$connecting_paths_query = <<<EOQ
MATCH path = shortestPath((p1:Person)-[:KNOWS*..6]-(p2:Person))
WHERE p1.name = {name1} AND p2.name = {name2}
RETURN [n IN nodes(path) | n.name] as names
EOQ;

// connecting paths: build and execute query
$params = ['name1' => 'Joe', 'name2' => 'Billy'];
$result = $client->run($connecting_paths_query, $params);

foreach ($result->records() as $record) {
    print_r($record->get('names'));
}

我有这个错误注意：未定义的索引：77行上的C：\ Users \ Asus \ vendor \ graphaware \ neo4j-php-client \ src \ Connection \ Connection.php中的方案

注意：未定义的索引：第77行上的C：\ Users \ Asus \ vendor \ graphaware \ neo4j-php-client \ src \ Connection \ Connection.php中的主机

警告：stream_socket_client（）：无法连接到C：\ Users \ Asus \ vendor \ graphaware \ neo4j-中的tcp：//：//：7687：7687（所请求的地址在其上下文中无效。） 167行上的bolt \ src \ IO \ StreamSocket.php

致命错误：未捕获的异常'GraphAware \ Bolt \ Exception \ IOException'和消息'连接到服务器的错误（10049）：“在C：\ Users \ Asus中请求的地址在上下文中无效。 \ vendor \ graphaware \ neo4j-bolt \ src \ IO \ StreamSocket.php：170堆栈跟踪：＃0 C：\ Users \ Asus \ vendor \ graphaware \ neo4j-bolt \ src \ IO \ StreamSocket.php（189）：GraphAware \ Bolt \ IO \ StreamSocket-> connect（）＃1 C：\ Users \ Asus \ vendor \ graphaware \ neo4j-bolt \ src \ Driver.php（114）：GraphAware \ Bolt \ IO \ StreamSocket-> reconnect（）＃ 2 C：\ Users \ Asus \ vendor \ graphaware \ neo4j-bolt \ src \ Driver.php（98）：GraphAware \ Bolt \ Driver-> handshake（）＃3 C：\ Users \ Asus \ vendor \ graphaware \ neo4j- php-client \ src \ Connection \ Connection.php（164）：GraphAware \ Bolt \ Driver-> session（）＃4 C：\ Users \ Asus \ vendor \ graphaware \ neo4j-php-client \ src \ Connection \ Connection。 php（115）：GraphAware \ Neo4j \ Client \ Connection \ Connection-> checkSession（）＃5 C：\ Users \ Asus \ vendor \ graphaware \ neo4j-php-client \ src \ Client.php（45）：GraphAware \ Neo4j \ Client \ Connection \ Connection-> run（' UNWIND {pairs ... ...'，Array，NULL）＃6 C在C：\ Users \ Asus \ vendor \ graphaware \ neo4j-bolt \ src \ IO \ StreamSocket.php在第170行

Answer 1

堆栈跟踪看起来像它无法解析连接URL，因为它看起来像是没有方案和 host 。

在我看来，它可以追溯到您发布的代码中的这一行：

$client->run($insert_query, ["pairs" => $data]);

我认为最终将使用此行定义的URL：

$neo4j_url = "neo4j@bolt://localhost:11004";

但是这种格式在我看来错了；当用户名和密码作为URL的一部分提供时，格式为：

 foo://example.com:8042/over/there?name=ferret#nose
 \_/   \______________/\_________/ \_________/ \__/
  |           |            |            |        |
scheme     authority       path        query   fragment

而authority部分是：

authority   = [ userinfo "@" ] host [ ":" port ]

所以我认为您想要的网址是：

$neo4j_url = "http://neo4j:bolt@localhost:11004/";      -or-
$neo4j_url = "bolt://neo4j:password@localhost:11004/";  <-- from doc linked in comment

其中有些是猜测，但我希望这能解决问题，或使您走上正确的道路。

有关URI格式的参考：https://tools.ietf.org/html/rfc3986

在Windows上如何在PHP中使用neo4j？

1 个答案: