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GitHub - swoole/ext-orm

 5 years ago
source link: https://github.com/swoole/ext-orm
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README.md

English | 中文

MySQL ORM User Guide

Catalogue

  • Instruction
  • Requirement
  • Compile swoole_orm in linux
  • Create test table
  • Start Coroutine MySQL
  • Native SQL query
  • Error Info
  • Where statement
  • Select statement
  • Insert statement
  • Replace statement
  • Update statement
  • Delete statement
  • Whole Example
  • Connection Pool

Instruction

1、Fast : swoole_orm is an mysql database ORM written in c, built in php extension, as we known, database ORM is a very time-consuming operation, especially for interpretive languages such as PHP, and for a project, the proportion of ORM is very high,so here I will implement the MySQL ORM operation in C language, and use the performance of C language to improve the performance of ORM.
2、Safe : swoole_orm return sql and bind value, you can solve SQL injection through parameter binding.
3、Powerful : concise and powerful usage , support any operation in database.
4、Easy : Extremely easy to learn and use, friendly construction.
5、Connection-pool : we can build connection pool by swoole channel and Coroutine MySQL

Requirement

  • PHP 7.0 +

Compile swoole_orm in linux

## path to is your PHP install dir , dest lib: swoole_orm.so

$cd ~/ext-orm
$/path/to/phpize
$chmod +x ./configure
$./configure --with-php-config=/path/to/php-config
$make
$make install

Create test table

CREATE TABLE `user_info_test` (
  `uid` int(11) NOT NULL COMMENT 'userid' AUTO_INCREMENT,
  `username` varchar(64) NOT NULL COMMENT 'username',
  `sexuality` varchar(8) DEFAULT 'male' COMMENT 'sexuality：male - 男性  female - 女性',
  `age` int(11) DEFAULT 0 COMMENT 'age',
  `height` double(11,2) DEFAULT 0 COMMENT 'height of a person, 身高',
  `bool_flag` int(11) DEFAULT 1 COMMENT 'flag',
  `remark` varchar(11) DEFAULT NULL,
  PRIMARY KEY (`uid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='userinfo';

Start Coroutine MySQL

  • new Swoole\Coroutine\MySQL();
$mysql = new Swoole\Coroutine\MySQL();
$options = array();
$options['host'] = '127.0.0.1';
$options['port'] = 3306;
$options['user'] = 'root';
$options['password'] = 'hao123123';
$options['database'] = 'user';
$ret = $mysql->connect($options);

Native SQL query

  • insert data
$ret = $mysql->query("insert into user_info_test(username, sexuality, age, height) 
			values('smallhow', 'male', 29, 180)");

if ($ret === false) {
  echo $mysql->errno . "\n";
  echo $mysql->error . "\n";
} else {
  echo $mysql->insert_id . "\n";
}
  • update data
$ret = $mysql->query("update user_info_test set remark='test' where height>=180");

if ($ret === false) {
  echo $mysql->errno . "\n";
  echo $mysql->error . "\n";
}
  • select data
$ret = $mysql->query("select * from user_info_test where bool_flag=1");

if ($ret === false) {
  echo $mysql->errno . "\n";
  echo $mysql->error . "\n";
} else {
  var_dump($ret);
}

Error Info

Error codes and error messages can be obtained through the errno and error params

$code = $mysql->errno;
$info = $mysql->error;

Where statement

  • Basic usage
//sql_stat is an array, 
//sql_stat['sql'] : SELECT * FROM `user_info_test` WHERE `sexuality` = ?
//sql_stat['bind_value'] : array("male")

$sql_stat = swoole_orm::select("user_info_test", "*", ["sexuality" => "male"]);
if ($sql_stat !== false) {
  $stmt = $mysql->prepare($sql_stat['sql']);
  $ret = $stmt->execute($sql_stat['bind_value']);
}


swoole_orm::select("user_info_test", "*", ["age" => 29]);  // WHERE age = 29

swoole_orm::select("user_info_test", "*", ["age[>]" => 29]); // WHERE age > 29

swoole_orm::select("user_info_test", "*", ["age[>=]" => 29]); // WHERE age >= 29

swoole_orm::select("user_info_test", "*", ["age[!]" => 29]); // WHERE age != 29

swoole_orm::select("user_info_test", "*", ["age[<>]" => [28, 29]]); // WHERE age  BETWEEN 28 AND 29

swoole_orm::select("user_info_test", "*", ["age[><]" => [28, 29]]); // WHERE age NOT BETWEEN 28 AND 29

swoole_orm::select("user_info_test", "*", ["username" => ["Tom", "Red", "carlo"]]); // WHERE username in ('Tom', 'Red', 'carlo')

//Multiple conditional query
swoole_orm::select("user_info_test", "*", [
    "uid[!]" => 10,
    "username[!]" => "James",
    "height[!]" => [165, 168, 172],
    "bool_flag" => true,
    "remark[!]" => null
]);
// WHERE uid != 10 AND username != "James" AND height NOT IN ( 165, 168, 172) AND bool_flag = 1 AND remark IS NOT NULL
  • Conditional Query

You can use "AND" or "OR" to make up very complex SQL statements.

swoole_orm::select("user_info_test", "*", [
  "OR" => [
    "uid[>]" => 3,
    "age[<>]" => [28, 29],
    "sexuality" => "female"
  ]
]);
// WHERE uid > 3 OR age BETWEEN 29 AND 29 OR sexuality = 'female'

swoole_orm::select("user_info_test", "*", [
  "AND" => [
    "OR" => [
      "age" => 29,
      "sexuality" => "female"
    ],
    "height" => 177
  ]
]);
// WHERE (age = 29 OR sexuality='female') AND height = 177

//Attention： Because mysql uses array arguments, the first OR is overwritten, the following usage is wrong, 
swoole_orm::select("user_info_test", "*", [
  "AND" => [
    "OR" => [
      "age" => 29,
      "sexuality" => "female"
    ],
    "OR" => [
      "uid[!]" => 3,
      "height[>=]" => 170
    ],
  ]
]);
// [X] SELECT * FROM user_info_test WHERE (uid != 3 OR height >= 170)

//We can use # and comments to distinguish between two diffrents OR
swoole_orm::select("user_info_test", "*", [
  "AND" => [
    "OR #1" => [
      "age" => 29,
      "sexuality" => "female"
    ],
    "OR #2" => [
      "uid[!]" => 3,
      "height[>=]" => 170
    ],
  ]
]);
// [√] SELECT * FROM user_info_test WHERE (age = 29 OR sexuality = 'female') AND (uid != 3 OR height >= 170)
  • Fuzzy Matching Like

LIKE USAGE [~].

swoole_orm::select("user_info_test", "*", [ "username[~]" => "%ide%" ]);
// WHERE username LIKE '%ide%'

swoole_orm::select("user_info_test", "*", ["username[~]" => ["%ide%", "Jam%", "%ace"]]);
// WHERE username LIKE '%ide%' OR username LIKE 'Jam%' OR username LIKE '%ace'

swoole_orm::select("user_info_test", "*", [ "username[!~]" => "%ide%" ]);
// WHERE username NOT LIKE '%ide%'
  • Use of wildcards
swoole_orm::select("user_info_test", "*", [ "username[~]" => "Londo_" ]); // London, Londox, Londos...

swoole_orm::select("user_info_test", "id", [ "username[~]" => "[BCR]at" ]); // Bat, Cat, Rat

swoole_orm::select("user_info_test", "id", [	"username[~]" => "[!BCR]at" ]); // Eat, Fat, Hat...
  • ORDER BY And LIMIT
swoole_orm::select("user_info_test", "*", [
  'sexuality' => 'male',
  'ORDER' => [
    "age",
    "height" => "DESC",
    "uid" => "ASC"
  ],
  'LIMIT' => 100,  //Get the first 100 of rows (overwritten by next LIMIT)
  'LIMIT' => [20, 100]  //Started from the top 20 rows, and get the next 100
]);
//SELECT * FROM `user_info_test` WHERE `sexuality` = 'male' ORDER BY `age`, `height` DESC, `uid` ASC LIMIT 100 OFFSET 20
  • GROUP And HAVING
swoole_orm::select("user_info_test", "sexuality,age,height", [
  'GROUP' => 'sexuality',

  // GROUP by array of values
  'GROUP' => [
    'sexuality',
    'age',
    'height'
  ],

  // Must have to use it with GROUP together
  'HAVING' => [
    'age[>]' => 30
  ]
]);
//SELECT uid FROM `user_info_test` GROUP BY sexuality,age,height HAVING `age` > 30

Select statement

  • usage
select($table, $columns, $where)

table [string]

table name

columns [string/array]

Columns to be queried.

where (optional) [array]

The conditions of the query.

select($table, $join, $columns, $where)

table [string]

table name

join [array]

Multi-table query, can be ignored if not used.

columns [string/array]

Columns to be queried.

where (optional) [array]

The conditions of the query.

return: [array]

Fail if false is returned, otherwise an array with select sql and bind value.


  • example

You can use * to match all fields, but if you specify columns you can improve performance.

$sql_stat = swoole_orm::select("user_info_test", ["uid", "username"], ["age[>]" => 31]);

var_dump($sql_stat);

if ($sql_stat !== false) {
  $stmt = $mysql->prepare($sql_stat['sql']);
  $ret = $stmt->execute($sql_stat['bind_value']);
}

// $ret = array(
//  [0] => array(
//      "uid" => 6,
//      "username" => "Aiden"
//  ),
//  [1] => array(
//      "uid" => 11,
//      "username" => "smallhow"
//  )
// )

// Select all columns
swoole_orm::select("user_info_test", "*");

  • Table join

Multi-table query SQL is more complicated, and it can be easily solved with mysql.

// [>] == RIGH JOIN
// [<] == LEFT JOIN
// [<>] == FULL JOIN
// [><] == INNER JOIN

swoole_orm::select("user_info_test",
[ // Table Join Info
  "[>]account" => ["uid" => "userid"], // RIGHT JOIN `account` ON `user_info_test`.`uid`= `account`.`userid`

  // This is a shortcut to declare the relativity if the row name are the same in both table.
  "[>]album" => "uid", //RIGHT JOIN `album` USING (`uid`) 

  // Like above, there are two row or more are the same in both table.
  "[<]detail" => ["uid", "age"], // LEFT JOIN `detail` USING (`uid`,`age`)

  // You have to assign the table with alias.
  "[<]address(addr_alias)" => ["uid" => "userid"], //LEFT JOIN `address` AS `addr_alias` ON `user_info_test`.`uid`=`addr_alias`.`userid`

  // You can refer the previous joined table by adding the table name before the column.
  "[<>]album" => ["account.userid" => "userid"], //FULL JOIN `album` ON  `account`.`userid` = `album`.`userid`

  // Multiple condition
  "[><]account" => [
    "uid" => "userid",
    "album.userid" => "userid"
  ]
], [ // columns
  "user_info_test.uid",
  "user_info_test.age",
  "addr_alias.country",
  "addr_alias.city"
], [ // where condition
  "user_info_test.uid[>]" => 3,
  "ORDER" => ["user_info_test.uid" => "DESC"],
  "LIMIT" => 50
]);


// SELECT 
//   user_info_test.uid,
//   user_info_test.age,
//   addr_alias.country,
//   addr_alias.city 
// FROM `user_info_test` 
// RIGHT JOIN `account` ON `user_info_test`.`uid`= `account`.`userid`  
// RIGHT JOIN `album` USING (`uid`) 
// LEFT JOIN `detail` USING (`uid`,`age`) 
// LEFT JOIN `address` AS `addr_alias` ON `user_info_test`.`uid`=`addr_alias`.`userid` 
// FULL JOIN `album` ON  `account`.`userid` = `album`.`userid` 
// INNER JOIN `account` ON `user_info_test`.`uid`= `account`.`userid` 
//   AND `album`.`userid` = `account`.`userid`  
// WHERE `user_info_test`.`uid` > 3 
// ORDER BY  `user_info_test`.`uid` DESC 
// LIMIT 50
  • alias

You can use aliases to prevent field conflicts

$data = swoole_orm::select("user_info_test(uinfo)", [
  "[<]account(A)" => "userid",
], [
  "uinfo.uid(uid)",
  "A.userid"
]);

// SELECT uinfo.uid AS `uid`, A.userid 
// FROM `user_info_test` AS `uinfo` 
// LEFT JOIN `account` AS `A` USING (`userid`)

Insert statement

insert($table, $data)

table [string]

table name

data [array]

insert data

return [int]

Fail if false is returned, otherwise an array with insert sql and bind value.

$data = array('username' => 'smallhow','sexuality' => 'male','age' => 35, 'height' => '168');
$sql_stat = swoole_orm::insert("user_info_test", $data);

if ($sql_stat !== false) {
  $stmt = $mysql->prepare($sql_stat['sql']);
  if($stmt === false) {
    echo $mysql->errno . "\n";
    echo $mysql->error . "\n";
  } else {
    $ret = $stmt->execute($sql_stat['bind_value']);
    echo $mysql->insert_id . "\n";
  }
}

Replace statement

replace($table, $data)

table [string]

table name

data [array]

replace data

return [int]

Fail if false is returned, otherwise an array with replace sql and bind value.

$data = array('uid' => 35, 'username' => 'smallhow','sexuality' => 'male','age' => 35, 'height' => '168');
$sql_stat = swoole_orm::replace("user_info_test", $data);

if ($sql_stat !== false) {
  $stmt = $mysql->prepare($sql_stat['sql']);
  if($stmt === false) {
    echo $mysql->errno . "\n";
    echo $mysql->error . "\n";
  } else {
    $ret = $stmt->execute($sql_stat['bind_value']);
  }
}

Update statement

update($table, $data, $where)

table [string]

table name

data [array]

update data

where (optional) [array]

where condition [可选]

return [int]

Fail if false is returned, otherwise an array with select sql and bind value.

$data = array('height' => 185,'age' => 32);
$where = array('username' => 'smallhow');
$sql_stat = swoole_orm::update("user_info_test", $data, $where);

if ($sql_stat !== false) {
  $stmt = $mysql->prepare($sql_stat['sql']);
  if($stmt === false) {
    echo $mysql->errno . "\n";
    echo $mysql->error . "\n";
  } else {
    $ret = $stmt->execute($sql_stat['bind_value']);
  }
}

Delete statement

delete($table, $where)

table [string]

table name

where (optional) [array]

where condition [可选]

return [int]

Fail if false is returned, otherwise an array with select sql and bind value.

$where = array('username' => 'smallhow');
$sql_stat = swoole_orm::delete("user_info_test", $where);

if ($sql_stat !== false) {
  $stmt = $mysql->prepare($sql_stat['sql']);
  if($stmt === false) {
    echo $mysql->errno . "\n";
    echo $mysql->error . "\n";
  } else {
    $ret = $stmt->execute($sql_stat['bind_value']);
  }
}

Whole Example

$table = "table_a(a)";

$join = [
  "[>]AAAA(a1)" => "id",
  "[<]BBBB" => ["E1", "E2", "E3"],
  "[>]CCCC(c1)" => [ "GG" => "HH", "II.KK" => "LL"]
];

$columns = ["name(a)", "avatar(b)", "age"];

$where =  [
  "user.email[!]" => ["[email protected]", "[email protected]", "[email protected]"],
  "user.uid[<]" => 11111,
  "uid[>=]" => 222,
  "uid[!]" => null,
  "count[!]" => [36, 57, 89],
  "id[!]" => true,
  "int_num[!]" => 3,
  "double_num[!]" => 3.76,
  "AA[~]" => "%saa%",
  "BB[!~]" => "%sbb",
  "CC[~]" => ["11%", "22_", "33%"],
  "DD[!~]" => ["%44%", "55%", "66%"],
  "EE[~]" => ["AND" => ["%E11", "E22"]],
  "FF[~]" => ["OR" => ["%F33", "F44"]],
  "GG[!~]" => ["AND" => ["%G55", "G66"]],
  "HH[!~]" => ["OR" => ["H77", "H88"]],
  "II[<>]" => ["1", "12"],
  "LL[><]" => ["1", "12"],
    "AND #1" => [
        "OR #1" => [
          "user_name" => null,
          "email" => "[email protected]",
        ],
        "OR #2" => [
          "user_name" => "bar",
          "email" => "[email protected]"
        ]
    ],
    "OR" => [
        "user_name[!]" => "foo",
        "promoted[!]" => true
    ],
    'GROUP' => 'userid',
    'GROUP' => ['type', 'age', 'gender'],
    'HAVING' => [
        "uid.num[>]" => 111,
        "type[>]" => "smart",
        "id[!]" => false,
        "god3[!]" => 9.86,
        "uid[!]" => null,
        "AA[~]" => "SSA%",
        "CC[~]" => ["11%", "22%", "%33"],
    ],
    'ORDER' => [
        "user.score",
        "user.uid" => "ASC",
        "time" => "DESC",
    ],
    "LIMIT" => 33,
];

$sql_stat = swoole_orm::select($table, $join, $columns, $where);
var_dump($sql_stat);

Connection Pool

//usage.php
include("DBConfig.php");
include("MySQLPool.php");

$table = 'user_info_test';
$join = array("[>]account" => ["uid" => "userid"]);
$columns = "uid,username";
$where = ["uid[<]" => 10, "age" => 31];

$ret = MySQLPool::instance('collect')->query("select * from $table where bool_flag=1");

$ret = MySQLPool::instance('collect')->select("user_info_test", $where, $columns, $join);

$ret = MySQLPool::instance('collect')->select_row($table, $where, $columns);

$data = array('username' => 'smallhow','sexuality' => 'male','age' => 35, 'height' => '168');
$insert_id = MySQLPool::instance('collect')->insert($table, $data);

$data['uid'] = 12;
$ret = MySQLPool::instance('collect')->replace($table, $data);

$update_data = array('height' => 186,'age' => 29);
$where = array('username' => 'smallhow');
$ret = MySQLPool::instance('collect')->update($table, $update_data, $where);

$ret = MySQLPool::instance('collect')->delete($table, $where);
//DBConfig.php
$util_db_config['default']['host']     = '127.0.0.1';
$util_db_config['default']['username'] = 'root';
$util_db_config['default']['password'] = 'hao123123';
$util_db_config['default']['dbname']   = 'caihongqiu';
$util_db_config['default']['char_set'] = 'utf8';
$util_db_config['default']['dbcollat'] = 'utf8_general_ci';
$util_db_config['default']['pool_size'] = 10;

$util_db_config['collect']['host']     = '127.0.0.1';
$util_db_config['collect']['username'] = 'root';
$util_db_config['collect']['password'] = 'hao123123';
$util_db_config['collect']['dbname']   = 'shine_light';
$util_db_config['collect']['char_set'] = 'utf8';
$util_db_config['collect']['dbcollat'] = 'utf8_general_ci';
$util_db_config['collect']['pool_size'] = 15;
class MySQLPool {
    const POOL_SIZE = 10;

    protected $pool;
    static private $instances;

    var $host = '';
    var $username = '';
    var $password = '';
    var $dbname = '';
    var $port = 3306;
    var $char_set = 'utf8';
    var $dbcollat = 'utf8_general_ci';

    static public function instance($params) {
        if (!isset(self::$instances[$params])) {

            $params = empty($params) ? 'default' : $params;

            global $util_db_config;

            if (! isset($util_db_config[$params])) {
                throw new RuntimeException("You have specified an invalid database connection group.");
            }

            $config = $util_db_config[$params];

            $pool_size = isset($config['pool_size']) ? intval($config['pool_size']) : MySQLPool::POOL_SIZE;
            $pool_size = $pool_size <= 0 ? MySQLPool::POOL_SIZE : $pool_size;

            self::$instances[$params] = new MySQLPool($config, $pool_size);
        }

        return self::$instances[$params];
    }

    /**
     * MySQLPool constructor.
     * @param int $size 连接池的尺寸
     */
    function __construct($params, $size) {
        foreach ($params as $key => $val) {
            $this->$key = $val;
        }

        $this->pool = new Swoole\Coroutine\Channel($size);

        for ($i = 0; $i < $size; $i++) {
            $mysql = new Swoole\Coroutine\MySQL();

            $ret = $this->connect($mysql);

            if ($ret) {
                $this->pool->push($mysql);
                $this->query("SET NAMES '".$this->char_set."' COLLATE '".$this->dbcollat."'");
            } else {
                throw new RuntimeException("MySQL connect error host={$this->host}, port={$this->port}, user={$this->username}, database={$this->dbname}, errno=[" . $mysql->errno . "], error=[" . $mysql->error . "]");
            }
        }
    }

    function insert($table = '', $data = NULL) {
        if (empty($table) || empty($data) || !is_array($data)) {
            throw new RuntimeException("insert_table_or_data_must_be_set");
        }

        $sql_stat = swoole_orm::insert($table, $data);
        if ($sql_stat === false) {
            throw new RuntimeException("insert_sql error [$table][".json_encode($data)."]");
        }

        $ret = $this->query($sql_stat['sql'], $sql_stat['bind_value'], $mysql);
        if (!empty($ret)) {
            return $mysql->insert_id;
        } else {
            return intval($ret);
        }
    }

    function replace($table = '', $data = NULL) {
        if (empty($table) || empty($data) || !is_array($data)) {
            throw new RuntimeException("replace_table_or_data_must_be_set");
        }

        $sql_stat = swoole_orm::replace($table, $data);
        if ($sql_stat === false) {
            throw new RuntimeException("replace_sql error [$table][".json_encode($data)."]");
        }

        $ret = $this->query($sql_stat['sql'], $sql_stat['bind_value']);
        return $ret;
    }

    function update($table = '', $data = NULL, $where = NULL) {
        if (empty($table) || empty($data) || !is_array($data)) {
            throw new RuntimeException("update_table_or_data_must_be_set");
        }

        $sql_stat = swoole_orm::update($table, $data, $where);
        if ($sql_stat === false) {
            throw new RuntimeException("update_sql error [$table][".json_encode($data)."][".json_encode($where)."]");
        }

        $ret = $this->query($sql_stat['sql'], $sql_stat['bind_value']);
        return $ret;
    }

    function delete($table = '', $where = NULL) {
        if (empty($table)) {
            throw new RuntimeException("delete_table_must_be_set");
        }

        $sql_stat = swoole_orm::delete($table, $where);
        if ($sql_stat === false) {
            throw new RuntimeException("replace_sql error [$table][".json_encode($where)."]");
        }

        $ret = $this->query($sql_stat['sql'], $sql_stat['bind_value']);
        return $ret;
    }

    function select($table = '', $where = array(), $columns = "*", $join = null) {
        if (empty($table)) {
            throw new RuntimeException("select_table_or_columns_must_be_set");
        }

        if (empty($join)) {
            $sql_stat = swoole_orm::select($table, $columns, $where);
        } else {
            $sql_stat = swoole_orm::select($table, $join, $columns, $where);
        }

        if ($sql_stat === false) {
            throw new RuntimeException("select_sql error [$table][".json_encode($where)."][".json_encode($columns)."]");
        }

        $ret = $this->query($sql_stat['sql'], $sql_stat['bind_value']);
        return $ret;
    }

    function select_row($table = '', $where = array(), $columns = "*") {
        $where['LIMIT'] = 1;
        $ret = $this->select($table, $where, $columns);
        if (empty($ret) || !is_array($ret)) {
            return array();
        }

        return $ret[0];
    }

    private function connect(& $mysql, $reconn = false) {
        if ($reconn) {
            $mysql->close();
        }

        $options = array();
        $options['host'] = $this->host;
        $options['port'] = intval($this->port) == 0 ? 3306 : intval($this->port);
        $options['user'] = $this->username;
        $options['password'] = $this->password;
        $options['database'] = $this->dbname;
        $ret = $mysql->connect($options);
        return $ret;
    }

    private function real_query(& $mysql, & $sql, & $map) {
        if (empty($map)) {
            return $mysql->query($sql);
        } else {
            $stmt = $mysql->prepare($sql);

            if ($stmt == false) {
                return false;
            } else {
                return $stmt->execute($map);
            }
        }
    }

    function query($sql, $map = null, & $mysql = null) {
        if (empty($sql)) {
            throw new RuntimeException("input_empty_query_sql");
        }

        try {
            $mysql = $this->pool->pop();
            $ret = $this->real_query($mysql, $sql, $map);

            if ($ret === false) {
                echo "MySQL QUERY FAIL [".$mysql->errno."][".$mysql->error."], sql=[{$sql}], map=[".json_encode($map)."]";

                if ($mysql->errno == 2006 || $mysql->errno == 2013) {
                    //reconnect MySQL
                    $ret = $this->connect($mysql, true);
                    if ($ret) {
                        $ret = $this->real_query($mysql, $sql, $map);
                    } else {
                        throw new RuntimeException("reconnect fail: [" . $mysql->errno . "][" . $mysql->error . "], host={$this->host}, port={$this->port}, user={$this->username}, database={$this->dbname}");
                    }
                }
            }

            if ($ret === false) {
                throw new RuntimeException($mysql->errno . "|" . $mysql->error);
            }

            $this->pool->push($mysql);
            return $ret;
        } catch (Exception $e) {
            $this->pool->push($mysql);
            throw new RuntimeException("MySQL catch exception [".$e->getMessage()."], sql=[{$sql}], map=".json_encode($map));
        }
    }
}

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