MySQL是一款廣泛使用的開(kāi)源關(guān)系型數(shù)據(jù)庫(kù)管理系統(tǒng),在Web開(kāi)發(fā)中經(jīng)常用到。通過(guò)PHP語(yǔ)言連接MySQL數(shù)據(jù)庫(kù),我們可以對(duì)數(shù)據(jù)庫(kù)進(jìn)行操作。以下是一些常見(jiàn)的MySQL操作頁(yè)面:
//連接數(shù)據(jù)庫(kù) $con = mysqli_connect("localhost","root","password","database_name"); //查詢數(shù)據(jù) $sql = "SELECT * FROM table_name"; $result = mysqli_query($con, $sql); //處理查詢結(jié)果 while($row = mysqli_fetch_array($result)){ echo $row['column_name']; } //插入數(shù)據(jù) $sql = "INSERT INTO table_name (column1, column2, column3) VALUES ('value1', 'value2', 'value3')"; mysqli_query($con, $sql); //更新數(shù)據(jù) $sql = "UPDATE table_name SET column_name='new_value' WHERE condition"; mysqli_query($con, $sql); //刪除數(shù)據(jù) $sql = "DELETE FROM table_name WHERE condition"; mysqli_query($con, $sql); //關(guān)閉數(shù)據(jù)庫(kù)連接 mysqli_close($con);
以上是一些基本的MySQL操作頁(yè)面,通過(guò)這些操作,我們可以實(shí)現(xiàn)對(duì)數(shù)據(jù)庫(kù)的增刪改查。在實(shí)際應(yīng)用中,還需要注意編寫安全的SQL語(yǔ)句,避免SQL注入等安全問(wèn)題。
下一篇mysql操作框架