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                # Table->create 創建內存表。 ~~~ function Table->create() : bool; ~~~ * 定義好表的結構后,執行`create`向操作系統申請內存,創建表 * 調用`create`之前不能使用`set`、`get`等數據讀寫操作方法 * 調用`create`之后不能使用`column`方法添加新字段 * 系統內存不足,申請失敗,`create`返回`false` * 申請內存成功,`create`返回`true` > `Table`使用共享內存來保存數據,在創建子進程前,務必要執行`Table->create()` > `Server`中使用`Table`,`Table->create()`必須在`Server->start()`前執行 ~~~ $table = new Swoole\Table(1024); $table->column('id', swoole_table::TYPE_INT, 4); //1,2,4,8 $table->column('name', swoole_table::TYPE_STRING, 64); $table->column('num', swoole_table::TYPE_FLOAT); $table->create(); $worker = new Swoole\Process('child1', false, false); $worker->start(); //$serv = new Swoole\Server('127.0.0.1', 9501); //$serv->start(); ~~~ ## 內存尺寸 使用`create`方法創建表后,可以讀取`$table->memorySize`屬性獲取實際占用內存的尺寸,單位為字節。 ~~~ echo $table->memorySize; ~~~
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