renamed variable to keep name semantic

Author: stefanak-michal

README.md

@@ -30,15 +30,15 @@ See ``index.php`` file. It contains few examples how you can use this library. O
 ```php
 <?php
 //Create new Bolt instance
-$neo4j = new \Bolt\Bolt();
+$bolt = new \Bolt\Bolt();
 //Set Bolt protocol version (default is newest 4.1)
-$neo4j->setProtocolVersions(4.1);
+$bolt->setProtocolVersions(4.1);
 //Connect to database
-$neo4j->init('MyClient/1.0', 'username', 'password);
+$bolt->init('MyClient/1.0', 'username', 'password);
 //Execute query
-$neo4j->run('RETURN 1 AS num, 2 AS cnt');
+$bolt->run('RETURN 1 AS num, 2 AS cnt');
 //Pull records from last query
-$rows = $neo4j->pull();
+$rows = $bolt->pull();
 ```
 
 | Method    | Description                                                        |

index.php

@@ -19,63 +19,63 @@
 
 try {
 
-    $neo4j = new \Bolt\Bolt();
-    $neo4j->setProtocolVersions(4.1);
+    $bolt = new \Bolt\Bolt();
+    $bolt->setProtocolVersions(4.1);
 
-    if (!$neo4j->init('MyClient/1.0', $user, $password)) {
+    if (!$bolt->init('MyClient/1.0', $user, $password)) {
         throw new Exception('Wrong login');
     }
 
     //test fields
-    $res = $neo4j->run('RETURN 1 AS num, 2 AS cnt');
+    $res = $bolt->run('RETURN 1 AS num, 2 AS cnt');
     if (($res['fields'][0] ?? '') != 'num' || ($res['fields'][1] ?? '') != 'cnt') {
         throw new Exception('Wrong fields');
     }
 
     //test record
-    $res = $neo4j->pull();
+    $res = $bolt->pull();
     if (($res[0][0] ?? 0) != 1 || ($res[0][1] ?? 0) != 2) {
         throw new Exception('Wrong record');
     }
 
 
     //test node create
-    $neo4j->run('CREATE (a:Test) RETURN a, ID(a)');
-    $created = $neo4j->pull();
+    $bolt->run('CREATE (a:Test) RETURN a, ID(a)');
+    $created = $bolt->pull();
     if (!($created[0][0] instanceof \Bolt\structures\Node)) {
         throw new Exception('Unsuccussful node create');
     }
 
     //get neo4j version to use right placeholders
-    $neo4j->run('call dbms.components() yield versions unwind versions as version return version');
-    $neo4jVersion = $neo4j->pull()[0][0] ?? '';
+    $bolt->run('call dbms.components() yield versions unwind versions as version return version');
+    $neo4jVersion = $bolt->pull()[0][0] ?? '';
     $t = version_compare($neo4jVersion, '4') == -1;
 
     //test delete created node
-    $neo4j->run('MATCH (a:Test) WHERE ID(a) = ' . ($t ? '{a}' : '$a') . ' DELETE a', [
+    $bolt->run('MATCH (a:Test) WHERE ID(a) = ' . ($t ? '{a}' : '$a') . ' DELETE a', [
         'a' => $created[0][1]
     ]);
-    $res = $neo4j->pull();
+    $res = $bolt->pull();
     if (($res[0]['stats']['nodes-deleted'] ?? 0) != 1) {
         throw new Exception('Unsuccussful node delete');
     }
 
     //transaction
-    if ($neo4j->getProtocolVersion() >= 3) {
-        $neo4j->begin();
-        $neo4j->run('CREATE (a:Test) RETURN a, ID(a)');
-        $created = $neo4j->pull();
-        $neo4j->rollback();
+    if ($bolt->getProtocolVersion() >= 3) {
+        $bolt->begin();
+        $bolt->run('CREATE (a:Test) RETURN a, ID(a)');
+        $created = $bolt->pull();
+        $bolt->rollback();
 
-        $neo4j->run('MATCH (a:Test) WHERE ID(a) = ' . ($t ? '{a}' : '$a') . ' RETURN COUNT(a)', [
+        $bolt->run('MATCH (a:Test) WHERE ID(a) = ' . ($t ? '{a}' : '$a') . ' RETURN COUNT(a)', [
             'a' => $created[0][1]
         ]);
-        $res = $neo4j->pull();
+        $res = $bolt->pull();
         if ($res[0][0] != 0)
             throw new Exception('Unsuccussful transaction rollback');
     }
 
-    unset($neo4j);
+    unset($bolt);
 
     echo '<br><br>Test successful';