How to do bulk delete in PHP? Request Code

How to do bulk delete in PHP? Request Code
Recently doing a project, but the bulk delete has not been able to achieve the effect. I put the code below, you and Daniel help me to see, the problem is where, thank you again!




1. Bulk Delete
if ($_post["CHK"]) {
$sid = Implode (",", $_post["chk"]);
$query = mysql_query ("Delete from news where news_id in (". $sid. ")");
if ($query) {
echo "";
}
else {
echo "";
}
}

This method how to delete also not, there are sometimes point cancellation can be deleted, do not know why, seeking expert answers.

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The SQL statement echo come out and see what's going on, no way to think of other solutions
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This problem is easy to solve, the $_post["chk" Print, the SQL statement printing problem solved
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Suggest you put all your code
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echo " ";

Your checkbox does not give a value.
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Click Cancel can also be deleted because this sentence to write:
ReturnDel () "/>

and the Del () function:
if (num==0) {
Alert ("Please select!");
return false;
}

