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親愛的我所有我遇到錯誤時,我正在嘗試創建一個表通過遷移。 我得到以下錯誤:致命錯誤:調用成員函數num_rows()在布爾在C: xamp htdocs project24 system database DB_driver.php上線768
Fatal error: Call to a member function num_rows() on boolean
in C:\xamp\htdocs\project24\system\database\DB_driver.php on line 768
我的代碼是:
if ($query->num_rows() > 0)
{
foreach ($query->result_array() as $row)
{
if (isset($row['TABLE_NAME']))
{
$retval[] = $row['TABLE_NAME'];
}
else
{
$retval[] = array_shift($row);
}
}
}
$this->data_cache['table_names'] = $retval;
$ex=$this->data_cache['table_names'];
return $ex;
}
行號768
請幫我弄輸出F rom此錯誤