PHP ClickHouse wrapper

Features

No dependency, only Curl (support php >=7.1 )
Select parallel queries (asynchronous)
Asynchronous bulk inserts from CSV file
Http compression (Gzip), for bulk inserts
Find active host, check cluster
Select WHERE IN ( local csv file )
SQL conditions & template
tablesSize & databaseSize
listPartitions
truncateTable in cluster
Insert array as column
Get master node replica in cluster
Get tableSize in all nodes
Async get ClickHouse progress function
streamRead/Write & Closure functions

Russian articles habr.com 1 on habr.com 2

Install composer

composer require smi2/phpclickhouse

In php

// vendor autoload 
$db = new ClickHouseDB\Client(['config_array']);

if (!$db->ping()) echo 'Error connect';

Last stable version for

php 5.6 <= 1.1.2
php 7.2 <= 1.3.10
php 7.3 >= 1.4.x

Packagist

Start

Connect and select database:

$config = [
    'host' => '192.168.1.1',
    'port' => '8123',
    'username' => 'default',
    'password' => '',
    'https' => true
];
$db = new ClickHouseDB\Client($config);
$db->database('default');
$db->setTimeout(1.5);      // 1 second , support only Int value
$db->setTimeout(10);       // 10 seconds
$db->setConnectTimeOut(5); // 5 seconds
$db->ping(true); // if can`t connect throw exception

Show tables:

print_r($db->showTables());

Create table:

$db->write('
    CREATE TABLE IF NOT EXISTS summing_url_views (
        event_date Date DEFAULT toDate(event_time),
        event_time DateTime,
        site_id Int32,
        site_key String,
        views Int32,
        v_00 Int32,
        v_55 Int32
    )
    ENGINE = SummingMergeTree(event_date, (site_id, site_key, event_time, event_date), 8192)
');

Show create table:

echo $db->showCreateTable('summing_url_views');

Insert data:

$stat = $db->insert('summing_url_views',
    [
        [time(), 'HASH1', 2345, 22, 20, 2],
        [time(), 'HASH2', 2345, 12, 9,  3],
        [time(), 'HASH3', 5345, 33, 33, 0],
        [time(), 'HASH3', 5345, 55, 0, 55],
    ],
    ['event_time', 'site_key', 'site_id', 'views', 'v_00', 'v_55']
);

If you need to insert UInt64 value, you can wrap the value in ClickHouseDB\Type\UInt64 DTO.

$statement = $db->insert('table_name',
    [
        [time(), UInt64::fromString('18446744073709551615')],
    ],
    ['event_time', 'uint64_type_column']
);
UInt64::fromString('18446744073709551615')

Select:

$statement = $db->select('SELECT * FROM summing_url_views LIMIT 2');

Work with Statement:

// Count select rows
$statement->count();

// Count all rows
$statement->countAll();

// fetch one row
$statement->fetchOne();

// get extremes min
print_r($statement->extremesMin());

// totals row
print_r($statement->totals());

// result all
print_r($statement->rows());

// totalTimeRequest
print_r($statement->totalTimeRequest());

// raw answer JsonDecode array, for economy memory
print_r($statement->rawData());

// raw curl_info answer
print_r($statement->responseInfo());

// human size info
print_r($statement->info());

// if clickhouse-server version >= 54011
$db->settings()->set('output_format_write_statistics',true);
print_r($statement->statistics());


// Statement Iterator
$state=$this->client->select('SELECT (number+1) as nnums FROM system.numbers LIMIT 5');
foreach ($state as $key=>$value) {
    echo $value['nnums'];
}

Select result as tree:

$statement = $db->select('
    SELECT event_date, site_key, sum(views), avg(views)
    FROM summing_url_views
    WHERE site_id < 3333
    GROUP BY event_date, url_hash
    WITH TOTALS
');

print_r($statement->rowsAsTree('event_date.site_key'));

/*
(
    [2016-07-18] => Array
        (
            [HASH2] => Array
                (
                    [event_date] => 2016-07-18
                    [url_hash] => HASH2
                    [sum(views)] => 12
                    [avg(views)] => 12
                )
            [HASH1] => Array
                (
                    [event_date] => 2016-07-18
                    [url_hash] => HASH1
                    [sum(views)] => 22
                    [avg(views)] => 22
                )
        )
)
*/

Drop table:

$db->write('DROP TABLE IF EXISTS summing_url_views');

Features

Select parallel queries (asynchronous)

$state1 = $db->selectAsync('SELECT 1 as ping');
$state2 = $db->selectAsync('SELECT 2 as ping');

// run
$db->executeAsync();

// result
print_r($state1->rows());
print_r($state2->fetchOne('ping'));

Parallelizing massive inserts from CSV file

$file_data_names = [
    '/tmp/clickHouseDB_test.1.data',
    '/tmp/clickHouseDB_test.2.data',
    '/tmp/clickHouseDB_test.3.data',
    '/tmp/clickHouseDB_test.4.data',
    '/tmp/clickHouseDB_test.5.data',
];

// insert all files
$stat = $db->insertBatchFiles(
    'summing_url_views',
    $file_data_names,
    ['event_time', 'site_key', 'site_id', 'views', 'v_00', 'v_55']
);

Parallelizing errors

selectAsync without executeAsync

$select = $db->selectAsync('SELECT * FROM summing_url_views LIMIT 1');
$insert = $db->insertBatchFiles('summing_url_views', ['/tmp/clickHouseDB_test.1.data'], ['event_time']);
// 'Exception' with message 'Queue must be empty, before insertBatch, need executeAsync'

see example/exam5_error_async.php

Gzip & enable_http_compression

On fly read CSV file and compress zlib.deflate.

$db->settings()->max_execution_time(200);
$db->enableHttpCompression(true);

$result_insert = $db->insertBatchFiles('summing_url_views', $file_data_names, [...]);


foreach ($result_insert as $fileName => $state) {
    echo $fileName . ' => ' . json_encode($state->info_upload()) . PHP_EOL;
}

see speed test example/exam08_http_gzip_batch_insert.php

Max execution time

$db->settings()->max_execution_time(200); // second

Connection without port

$config['host']='blabla.com';
$config['port']=0;
// getUri() === 'https://blabla.com'


$config['host']='blabla.com/urls';
$config['port']=8765;
// getUri() === 'https://blabla.com/urls'

$config['host']='blabla.com:2224';
$config['port']=1234;
// getUri() === 'https://blabla.com:2224'

tablesSize & databaseSize

Result in human size

print_r($db->databaseSize());
print_r($db->tablesSize());
print_r($db->tableSize('summing_partions_views'));

Partitions

$count_result = 2;
print_r($db->partitions('summing_partions_views', $count_result));

Select WHERE IN ( local csv file )

$file_name_data1 = '/tmp/temp_csv.txt'; // two column file [int,string]
$whereIn = new \ClickHouseDB\Query\WhereInFile();
$whereIn->attachFile($file_name_data1, 'namex', ['site_id' => 'Int32', 'site_hash' => 'String'], \ClickHouseDB\Query\WhereInFile::FORMAT_CSV);
$result = $db->select($sql, [], $whereIn);

// see example/exam7_where_in.php

Bindings

Bindings:

$date1 = new DateTime("now"); // DateTimeInterface

$Bindings = [
  'select_date' => ['2000-10-10', '2000-10-11', '2000-10-12'],
  'datetime'=>$date,
  'limit' => 5,
  'from_table' => 'table'
];

$statement = $db->selectAsync("SELECT FROM {from_table} WHERE datetime=:datetime limit {limit}", $Bindings);

// Double bind in {KEY}
$keys=[
            'A'=>'{B}',
            'B'=>':C',
            'C'=>123,
            'Z'=>[':C',':B',':C']
        ];
$this->client->selectAsync('{A} :Z', $keys)->sql() // ==   "123 ':C',':B',':C' FORMAT JSON",

Simple sql conditions & template

Conditions is deprecated, if need use: $db->enableQueryConditions();

Example with QueryConditions:

$db->enableQueryConditions();

$input_params = [
  'select_date' => ['2000-10-10', '2000-10-11', '2000-10-12'],
  'limit' => 5,
  'from_table' => 'table'
];

$select = '
    SELECT * FROM {from_table}
    WHERE
    {if select_date}
        event_date IN (:select_date)
    {else}
        event_date=today()
    {/if}
    {if limit}
    LIMIT {limit}
    {/if}
';

$statement = $db->selectAsync($select, $input_params);
echo $statement->sql();

/*
SELECT * FROM table
WHERE
event_date IN ('2000-10-10','2000-10-11','2000-10-12')
LIMIT 5
FORMAT JSON
*/

$input_params['select_date'] = false;
$statement = $db->selectAsync($select, $input_params);
echo $statement->sql();

/*
SELECT * FROM table
WHERE
event_date=today()
LIMIT 5
FORMAT JSON
*/

$state1 = $db->selectAsync(
    'SELECT 1 as {key} WHERE {key} = :value',
    ['key' => 'ping', 'value' => 1]
);

// SELECT 1 as ping WHERE ping = "1"

Example custom query Degeneration in exam16_custom_degeneration.php

SELECT {ifint VAR} result_if_intval_NON_ZERO{/if}
SELECT {ifint VAR} result_if_intval_NON_ZERO {else} BLA BLA{/if}

Settings

3 way set any settings

// in array config
$config = [
    'host' => 'x',
    'port' => '8123',
    'username' => 'x',
    'password' => 'x',
    'settings' => ['max_execution_time' => 100]
];
$db = new ClickHouseDB\Client($config);

// settings via constructor
$config = [
    'host' => 'x',
    'port' => '8123',
    'username' => 'x',
    'password' => 'x'
];
$db = new ClickHouseDB\Client($config, ['max_execution_time' => 100]);

// set method
$config = [
    'host' => 'x',
    'port' => '8123',
    'username' => 'x',
    'password' => 'x'
];
$db = new ClickHouseDB\Client($config);
$db->settings()->set('max_execution_time', 100);

// apply array method
$db->settings()->apply([
    'max_execution_time' => 100,
    'max_block_size' => 12345
]);

// check
if ($db->settings()->getSetting('max_execution_time') !== 100) {
    throw new Exception('Bad work settings');
}

// see example/exam10_settings.php

Use session_id with ClickHouse

useSession() - make new session_id or use exists useSession(value)

// enable session_id
$db->useSession();
$sesion_AA=$db->getSession(); // return session_id

$db->write(' CREATE TEMPORARY TABLE IF NOT EXISTS temp_session_test (number UInt64)');
$db->write(' INSERT INTO temp_session_test SELECT number*1234 FROM system.numbers LIMIT 30');

// reconnect to continue with other session
$db->useSession($sesion_AA);

Array as column

$db->write('
    CREATE TABLE IF NOT EXISTS arrays_test_string (
        s_key String,
        s_arr Array(String)
    )
    ENGINE = Memory
');

$db->insert('arrays_test_string',
    [
        ['HASH1', ["a", "dddd", "xxx"]],
        ['HASH1', ["b'\tx"]],
    ],
    ['s_key', 's_arr']
);

// see example/exam12_array.php

Class for FormatLine array

var_dump(
    ClickHouseDB\Quote\FormatLine::CSV(
        ['HASH1', ["a", "dddd", "xxx"]]
    )
);

var_dump(
    ClickHouseDB\Quote\FormatLine::TSV(
        ['HASH1', ["a", "dddd", "xxx"]]
    )
);

// example write to file
$row=['event_time'=>date('Y-m-d H:i:s'),'arr1'=>[1,2,3],'arrs'=>["A","B\nD\nC"]];
file_put_contents($fileName,ClickHouseDB\Quote\FormatLine::TSV($row)."\n",FILE_APPEND);

HTTPS

$db = new ClickHouseDB\Client($config);
$db->settings()->https();

getServer System.Settings & Uptime

print_r($db->getServerUptime());

print_r($db->getServerSystemSettings());

print_r($db->getServerSystemSettings('merge_tree_min_rows_for_concurrent_read'));

ReadOnly ClickHouse user

$config = [
    'host' => '192.168.1.20',
    'port' => '8123',
    'username' => 'ro',
    'password' => 'ro',
    'readonly' => true
];

Direct write to file

Send result from clickhouse, without parse json.

$WriteToFile=new ClickHouseDB\WriteToFile('/tmp/_1_select.csv');
$db->select('select * from summing_url_views',[],null,$WriteToFile);
// or
$db->selectAsync('select * from summing_url_views limit 4',[],null,new ClickHouseDB\WriteToFile('/tmp/_3_select.tab',true,'TabSeparatedWithNames'));
$db->selectAsync('select * from summing_url_views limit 4',[],null,new ClickHouseDB\WriteToFile('/tmp/_4_select.tab',true,'TabSeparated'));
$statement=$db->selectAsync('select * from summing_url_views limit 54',[],null,new ClickHouseDB\WriteToFile('/tmp/_5_select.csv',true,ClickHouseDB\WriteToFile::FORMAT_CSV));

Stream

streamWrite() : Closure stream write

$streamWrite=new ClickHouseDB\Transport\StreamWrite($stream);

$client->streamWrite(
        $streamWrite,                                   // StreamWrite Class
        'INSERT INTO {table_name} FORMAT JSONEachRow',  // SQL Query
        ['table_name'=>'_phpCh_SteamTest']              // Binds
    );

streamWrite & custom Closure & Deflate

$stream = fopen('php:https://memory','r+');

for($f=0;$f<23;$f++) {  // Make json data in stream
        fwrite($stream, json_encode(['a'=>$f]).PHP_EOL );
}

rewind($stream); // rewind stream


$streamWrite=new ClickHouseDB\Transport\StreamWrite($stream);
$streamWrite->applyGzip();   // Add Gzip zlib.deflate in stream

$callable = function ($ch, $fd, $length) use ($stream) {
    return ($line = fread($stream, $length)) ? $line : '';
};
// Apply closure
$streamWrite->closure($callable);
// Run Query
$r=$client->streamWrite($streamWrite,'INSERT INTO {table_name} FORMAT JSONEachRow', ['table_name'=>'_phpCh_SteamTest']);
// Result
print_r($r->info_upload());

streamRead

streamRead is like WriteToFile

$stream = fopen('php:https://memory','r+');
$streamRead=new ClickHouseDB\Transport\StreamRead($stream);

$r=$client->streamRead($streamRead,'SELECT sin(number) as sin,cos(number) as cos FROM {table_name} LIMIT 4 FORMAT JSONEachRow', ['table_name'=>'system.numbers']);
rewind($stream);
while (($buffer = fgets($stream, 4096)) !== false) {
    echo ">>> ".$buffer;
}
fclose($stream); // Need Close Stream



// Send to closure

$stream = fopen('php:https://memory','r+');
$streamRead=new ClickHouseDB\Transport\StreamRead($stream);
$callable = function ($ch, $string) use ($stream) {
    // some magic for _BLOCK_ data
    fwrite($stream, str_ireplace('"sin"','"max"',$string));
    return strlen($string);
};

$streamRead->closure($callable);

$r=$client->streamRead($streamRead,'SELECT sin(number) as sin,cos(number) as cos FROM {table_name} LIMIT 44 FORMAT JSONEachRow', ['table_name'=>'system.numbers']);

insert Assoc Bulk

 $oneRow = [
            'one' => 1,
            'two' => 2,
            'thr' => 3,
            ];
            $failRow = [
                'two' => 2,
                'one' => 1,
                'thr' => 3,
            ];

$db->insertAssocBulk([$oneRow, $oneRow, $failRow])

Auth methods

   AUTH_METHOD_HEADER       = 1;
   AUTH_METHOD_QUERY_STRING = 2;
   AUTH_METHOD_BASIC_AUTH   = 3;

In config set auth_method

$config=[
    'host'=>'host.com',
    //...
    'auth_method'=>1,
];

progressFunction

// Apply function

$db->progressFunction(function ($data) {
    echo "CALL FUNCTION:".json_encode($data)."\n";
});
$st=$db->select('SELECT number,sleep(0.2) FROM system.numbers limit 5');


// Print
// ...
// CALL FUNCTION:{"read_rows":"2","read_bytes":"16","total_rows":"0"}
// CALL FUNCTION:{"read_rows":"3","read_bytes":"24","total_rows":"0"}
// ...

ssl CA

$config = [
    'host' => 'cluster.clickhouse.dns.com', // any node name in cluster
    'port' => '8123',
    'sslCA' => '...', 
];

Cluster

$config = [
    'host' => 'cluster.clickhouse.dns.com', // any node name in cluster
    'port' => '8123',
    'username' => 'default', // all node have one login+password
    'password' => ''
];


// client connect first node, by DNS, read list IP, then connect to ALL nodes for check is !OK!


$cl = new ClickHouseDB\Cluster($config);
$cl->setScanTimeOut(2.5); // 2500 ms, max time connect per one node

// Check replica state is OK
if (!$cl->isReplicasIsOk())
{
    throw new Exception('Replica state is bad , error='.$cl->getError());
}

// get array nodes, and clusers
print_r($cl->getNodes());
print_r($cl->getClusterList());


// get node by cluster
$name='some_cluster_name';
print_r($cl->getClusterNodes($name));

// get counts
echo "> Count Shard   = ".$cl->getClusterCountShard($name)."\n";
echo "> Count Replica = ".$cl->getClusterCountReplica($name)."\n";

// get nodes by table & print size per node
$nodes=$cl->getNodesByTable('shara.adpreview_body_views_sharded');
foreach ($nodes as $node)
{
    echo "$node > \n";
    // select one node
    print_r($cl->client($node)->tableSize('adpreview_body_views_sharded'));
    print_r($cl->client($node)->showCreateTable('shara.adpreview_body_views'));
}

// work with one node

// select by IP like "*.248*" = `123.123.123.248`, dilitmer `;`  , if not fount -- select first node
$cli=$cl->clientLike($name,'.298;.964'); // first find .298 then .964 , result is ClickHouseDB\Client

$cli->ping();



// truncate table on cluster
$result=$cl->truncateTable('dbNane.TableName_sharded');

// get one active node ( random )
$cl->activeClient()->setTimeout(500);
$cl->activeClient()->write("DROP TABLE IF EXISTS default.asdasdasd ON CLUSTER cluster2");


// find `is_leader` node
$cl->getMasterNodeForTable('dbNane.TableName_sharded');


// errors
var_dump($cl->getError());


//

Return Extremes

$db->enableExtremes(true);

Enable Log Query

You can log all query in ClickHouse

$db->enableLogQueries();
$db->select('SELECT 1 as p');
print_r($db->select('SELECT * FROM system.query_log')->rows());

isExists

$db->isExists($database,$table);

Debug & Verbose

$db->verbose();

Verbose to file|steam:

    // init client
    $cli = new Client($config);
    $cli->verbose();
    // temp stream
    $stream = fopen('php:https://memory', 'r+');
    // set stream to curl
    $cli->transport()->setStdErrOut($stream);
    // exec curl
    $st=$cli->select('SElect 1 as ppp');
    $st->rows();
    // rewind 
    fseek($stream,0,SEEK_SET);
    
    // output
    echo stream_get_contents($stream);

Dev & PHPUnit Test

Don't forget to run composer install. It should setup PSR-4 autoloading.
Then you can simply run vendor/bin/phpunit and it should output the following

cp phpunit.xml.dist phpunit.xml
mcedit phpunit.xml

Edit in phpunit.xml constants:

<php>
    <env name="CLICKHOUSE_HOST" value="127.0.0.1" />
    <env name="CLICKHOUSE_PORT" value="8123" />
    <env name="CLICKHOUSE_USER" value="default" />
    <env name="CLICKHOUSE_DATABASE" value="phpChTestDefault" />
    <env name="CLICKHOUSE_PASSWORD" value="" />
    <env name="CLICKHOUSE_TMPPATH" value="/tmp" />
</php>

Run docker ClickHouse server

cd ./tests
docker-compose up

Run test

./vendor/bin/phpunit

./vendor/bin/phpunit --group ClientTest

./vendor/bin/phpunit --group ClientTest --filter testInsertNestedArray

./vendor/bin/phpunit --group ConditionsTest

Run PHPStan

# Main
./vendor/bin/phpstan analyse src tests --level 7
# SRC only
./vendor/bin/phpstan analyse src --level 7



# Examples
./vendor/bin/phpstan analyse example -a ./example/Helper.php

License

MIT

ChangeLog

See changeLog.md

Name		Name	Last commit message	Last commit date
Latest commit History 615 Commits
example		example
src		src
tests		tests
.gitattributes		.gitattributes
.gitignore		.gitignore
.scrutinizer.yml		.scrutinizer.yml
.travis.yml		.travis.yml
CHANGELOG.md		CHANGELOG.md
LICENSE		LICENSE
README.md		README.md
composer.json		composer.json
include.php		include.php
phpcs.xml.dist		phpcs.xml.dist
phpstan.neon.dist		phpstan.neon.dist
phpunit.xml.dist		phpunit.xml.dist

License

cybercog/smi2-php-clickhouse

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PHP ClickHouse wrapper

Features

Install composer

Start

Features

Select parallel queries (asynchronous)

Parallelizing massive inserts from CSV file

Parallelizing errors

Gzip & enable_http_compression

Max execution time

Connection without port

tablesSize & databaseSize

Partitions

Select WHERE IN ( local csv file )

Bindings

Simple sql conditions & template

Settings

Use session_id with ClickHouse

Array as column

HTTPS

getServer System.Settings & Uptime

ReadOnly ClickHouse user

Direct write to file

Stream

streamWrite & custom Closure & Deflate

streamRead

insert Assoc Bulk

Auth methods

progressFunction

ssl CA

Cluster

Return Extremes

Enable Log Query

isExists

Debug & Verbose

Dev & PHPUnit Test

License

ChangeLog

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