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±¾ÎĽ«ÏÈÈÝÔõÑùʹÓÃSwooleµÄЭ³ÌÌØÕ÷À´ÓÅ»¯MySQLÊý¾Ý¿â»á¼û¡£

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Э³ÌÊÇÒ»ÖÖÓû§Ì¬Ị̈߳¬Ò²³ÆÇáÁ¿¼¶Ï̡߳£Ëü²»ÐèÒª²Ù×÷ϵͳµÄÏ̵߳÷ÀíÆ÷À´¾ÙÐе÷Àí£¬ËùÓÐÓÉÓ¦ÓóÌÐò¿ØÖÆ¡£Ð­³Ì¿ÉÒÔͨ¹ýyield²Ù×÷£¬´ÓÄ¿½ñÖ´ÐÐÁ÷³ÌÖÐÔÝÍ£²¢ÉúÑÄÆäÉÏÏÂÎÄ£¬ÈÃÁíÒ»¸öЭ³Ì¼ÌÐøÖ´ÐС£ÕâÑùµÄÇл»ÊÇÔÚÓû§Ì¬Ï¾ÙÐеÄ£¬±ÈÏ̵߳ÄÇл»¸ü¿ì£¬ÏûºÄ¸üÉÙµÄϵͳ×ÊÔ´¡£Ð­³ÌµÄÓÅÊÆÔÚÓÚ£º¸ß²¢·¢¡¢µÍ¿ªÏú¡¢¸ßЧÂÊ¡£

¶þ¡¢SwooleÖеÄЭ³Ì

SwooleÊÇÒ»¿î»ùÓÚЭ³ÌµÄ¸ßÐÔÄÜÍøÂçͨѶ¿ò¼Ü£¬ÄÚÖÃÁËЭ³Ìµ÷ÀíÆ÷£¬ÔÚʵÏָ߲¢·¢ÍøÂçͨѶµÄͬʱ£¬Ò²Àû±ãÁËЭ³ÌµÄʹÓá£ÔÚSwooleÖУ¬½¨ÉèЭ³ÌÖ»ÐèҪʹÓÃÒªº¦×Ö¡°coroutine¡±¼´¿É¡£Ê¾Àý´úÂëÈçÏ£º

//½¨ÉèЭ³Ì
go(function(){
    echo "Hello, Coroutine!";
});

µÇ¼ºó¸´ÖÆ

Èý¡¢Ê¹ÓÃЭ³ÌÓÅ»¯Êý¾Ý¿â»á¼û

MySQLÊÇÒ»¿î¿ªÔ´µÄ¹ØϵÐÍÊý¾Ý¿â£¬ÆÕ±éÓ¦ÓÃÓÚWebÓ¦ÓÃÖС£Ôڸ߲¢·¢ºÍ´óÁ÷Á¿µÄÇéÐÎÏ£¬¹Å°åµÄMySQL»á¼û·½·¨¿ÉÄ᷺ܻÆðÐÔÄÜÆ¿¾±¡£Ê¹ÓÃSwooleµÄЭ³ÌÌØÕ÷£¬¿ÉÒÔÓÅ»¯MySQLµÄ»á¼û·½·¨£¬Ìá¸ßÓ¦ÓõÄÐÔÄܺÍÎȹÌÐÔ¡£

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Ôڸ߲¢·¢ÇéÐÎÏ£¬ÆµÈÔ½¨ÉèºÍÏú»ÙMySQLÅþÁ¬»áÔì³ÉºÜ´óµÄ¿ªÏú¡£Ê¹ÓÃÅþÁ¬³Ø¿ÉÒÔïÔÌ­ÅþÁ¬µÄ½¨ÉèºÍÏú»Ù£¬Ìá¸ßÊý¾Ý¿â»á¼ûµÄЧÂÊ¡£Ê¾Àý´úÂëÈçÏ£º

//½¨ÉèÅþÁ¬³Ø
$pool = new SwooleCoroutineChannel(50); 

//Э³Ì³ØʹÃü
function db_task($sql) {
    $conn = $pool->pop(); //´ÓÅþÁ¬³Ø»ñÈ¡ÅþÁ¬
    $result = $conn->query($sql); //Ö´ÐÐSQLÓï¾ä
    $pool->push($conn); //ËÍ»¹ÅþÁ¬µ½ÅþÁ¬³Ø
    return $result;
}

//½¨ÉèЭ³Ì
go(function () {
    $result = db_task("SELECT * FROM users WHERE id = 1");
    var_dump($result);
});

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ʹÓÃЭ³ÌMySQL¿Í»§¶Ë

SwooleÌṩÁËЭ³ÌMySQL¿Í»§¶Ë£¬¿ÉÒÔÖ±½ÓʹÓÃЭ³ÌÀ´¾ÙÐÐMySQLµÄ²Ù×÷£¬¼òÆÓ¸ßЧ¡£Ê¾Àý´úÂëÈçÏ£º

//½¨ÉèMySQL¿Í»§¶Ë
$pool = new SwooleCoroutineMySQL();
$pool->connect([
    'host' => '127.0.0.1',
    'port' => 3306,
    'user' => 'root',
    'password' => '123456',
    'database' => 'test',
]);

//Э³ÌMySQLʹÃü
function db_task($sql) {
    global $pool;
    $result = $pool->query($sql);
    return $result;
}

//½¨ÉèЭ³Ì
go(function () {
    $result = db_task("SELECT * FROM users WHERE id = 1");
    var_dump($result);
});

µÇ¼ºó¸´ÖÆ

ÅúÁ¿´¦ÀíSQLÓï¾ä

ÔÚ»á¼ûÊý¾Ý¿âʱ£¬ÍùÍùÐèÒªÖ´ÐжàÌõSQLÓï¾ä¡£¹Å°åµÄ·½·¨ÊÇÖðÌõÖ´ÐУ¬ÕâÑù»áÔì³É´ó×ÚµÄIO¿ªÏúºÍÆÚ´ýʱ¼ä¡£Ê¹ÓÃЭ³Ì£¬¿ÉÒÔ½«¶àÌõSQLÓï¾äºÏ²¢³ÉÒ»´ÎÅúÁ¿Ö´ÐУ¬ïÔÌ­IO¿ªÏúºÍÆÚ´ýʱ¼ä£¬Ìá¸ßÊý¾Ý¿â»áÊÕЧÂÊ¡£Ê¾Àý´úÂëÈçÏ£º

//½¨ÉèÅþÁ¬³Ø
$pool = new SwooleCoroutineChannel(50);

//Э³Ì³ØʹÃü
function db_task($sql) {
    $conn = $pool->pop();
    $result = $conn->query($sql);
    $pool->push($conn);
    return $result;
}

//½¨ÉèЭ³Ì
go(function () {
    $sqls = [
        "SELECT * FROM users WHERE id = 1",
        "SELECT * FROM users WHERE id = 2",
        "SELECT * FROM users WHERE id = 3",
        //...
    ];
    $sql = implode(";", $sqls); //ºÏ²¢SQLÓï¾ä
    $result = db_task($sql);
    foreach ($result as $row) {
        var_dump($row);
    }
});

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