PHP method to delete the multiple selection content of the front-end checkbox at one time_PHP tutorial

Copy code The code is as follows:

SQL: $SQL="delete from `doing` where id in ('1,2,3 ,4')";

Data are separated by commas.
Form:

Copy code The code is as follows:

Okay $ID_Dele=$_POST['ID_Dele'] will be an array. Although PHP is weakly typed, it is not as weak as ASP.

ASP can delete directly:
SQL="delete from [doing] where id in ('"&ID_Dele&"')". But PHP cannot put $ID_Dele directly into it. Because $ID_Dele is not '1,2,3,4', because $ID_Dele is an array with keys and values.
Okay, it’s not difficult in PHP. There happens to be a function: implode(), that’s right. A function that has exactly the opposite function to split()explode(). The latter two are separated by a certain character (such as a comma), while the former can be spliced ​​into a string.

So:

Copy code The code is as follows:

$ID_Dele= implode(",",$ _POST['ID_Dele']);
$SQL="delete from `doing` where id in ($ID_Dele)";

http://www.bkjia.com/PHPjc/313602.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/313602.htmlTechArticleCopy the code as follows: SQL: $SQL="delete from `doing` where id in ('1,2 ,3,4')"; Data are separated by commas. Form: Copy code The code is as follows: form action="?action=doing" method...