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PHP MySQL ????

UPDATE ?? ?????? ???? ???? ???? ? ?????.

??

UPDATE table_name

SET ??1=?, ??2=?2,.. .

WHERE some_column=some_value

??: UPDATE ??? WHERE ?? ?????. WHERE ?? ?????? ?? ???? ?????. WHERE ?? ???? ?? ??? ???????!

SQL? ?? ??? ????? SQL ????? ?????.

?? ???? ?????.

?? Myguests ???? ???? ???????.

09.png

firstname="tom " ?? ??

<?php
 header("Content-type:text/html;charset=utf-8");    //設(shè)置編碼
 $con=mysqli_connect("localhost","root","root","test");
 // 檢測連接
 if (mysqli_connect_errno())
 {
     echo "連接失敗: " . mysqli_connect_error();
 }
 
 mysqli_query($con,"UPDATE Myguests SET Age=23 WHERE firstname='tom'");
 
 mysqli_close($con);
 ?>

???? ??

???? ???

53.png

?????? ?? ????? .



???? ??
||
<?php header("Content-type:text/html;charset=utf-8"); //設(shè)置編碼 $con=mysqli_connect("localhost","root","root","test"); // 檢測連接 if (mysqli_connect_errno()) { echo "連接失敗: " . mysqli_connect_error(); } mysqli_query($con,"UPDATE Myguests SET Age=23 WHERE firstname='tom'"); mysqli_close($con); ?>