php程序使用cassandra

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PHP 程序使用 Cassandra

在 PHP 代码中使用 Cassandra，需要借助 Thrift 来生成需要的 PHP 文件，通过使用 thrift --gen php interface/cassandra.thrift 生成所需要的 PHP 文件，生成的 PHP 文件中提供了与 Cassandra 建立连接、读写数据时所需要的函数。

 <?php  $GLOBALS['THRIFT_ROOT'] = '/usr/share/php/Thrift';  require_once  $GLOBALS['THRIFT_ROOT'].'/packages/cassandra/Cassandra.php';  require_once  $GLOBALS['THRIFT_ROOT'].'/packages/cassandra/cassandra_types.php';  require_once $GLOBALS['THRIFT_ROOT'].'/transport/TSocket.php';  require_once $GLOBALS['THRIFT_ROOT'].'/protocol/TBinaryProtocol.php';  require_once  $GLOBALS['THRIFT_ROOT'].'/transport/TFramedTransport.php';  require_once  $GLOBALS['THRIFT_ROOT'].'/transport/TBufferedTransport.php';  try {  // 建立 Cassandra 连接 $socket = new TSocket('192.168.10.2', 9160);  $transport = new TBufferedTransport($socket, 1024, 1024);  $protocol = new TBinaryProtocolAccelerated($transport);  $client = new CassandraClient($protocol);  $transport->open();  $keyspace = 'Keyspace1';  $keyUser = "studentA";  $columnPath = new cassandra_ColumnPath();  $columnPath->column_family = 'Standard1';  $columnPath->super_column = null;  $columnPath->column = 'age';  $consistency_level = cassandra_ConsistencyLevel::ZERO;  $timestamp = time();  $value = "18";  // 写入数据 $client->insert($keyspace, $keyUser, $columnPath, $value,                             $timestamp, $consistency_level);  $columnParent = new cassandra_ColumnParent();  $columnParent->column_family = "Standard1";  $columnParent->super_column = NULL;  $sliceRange = new cassandra_SliceRange();  $sliceRange->start = "";  $sliceRange->finish = "";  $predicate = new cassandra_SlicePredicate();  list() = $predicate->column_names;  $predicate->slice_range = $sliceRange;  $consistency_level = cassandra_ConsistencyLevel::ONE;  $keyUser = studentA;  // 查询数据 $result = $client->get_slice($keyspace, $keyUser, $columnParent,              $predicate, $consistency_level);  // 关闭连接 $transport->close();  } catch (TException $tx) {  }?>

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