DatabaseObject::existsInDatabase
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DatabaseObject::existsInDatabase — Check if object exists in database
说明
   abstract public mysql_xdevapi\DatabaseObject::existsInDatabase
    ( void
   ) : bool
  Verifies if the database object refers to an object that exists in the database.
参数
此函数没有参数。
返回值
   Returns TRUE if object exists in the database, else FALSE if it does not.
  
范例
Example #1 mysql_xdevapi\DatabaseObject::existsInDatabase() example
<?php
$existInDb = $dbObj->existsInDatabase();
?>