php - my delete query won't delete anything from mysql -


i'm building website .. , in page, want show data in mysql , select 1 row , delete mysql, when testing (row_affect) gives nothing has changed.. shows info database, , ok, when want delete, won't delete. code..

<?php  //connect db //include_once("project/cieconn.php"); $mysqlcon= mysqli_connect("localhost", "root", "","cie") or die(mysqli_connect_error());  mysqli_select_db($mysqlcon,'cie') or die ("no database");    $idid = isset($_post['id']); // 1 2   if( isset($_post['delete']) ){         if( empty($idid) || $idid == 0 ){             echo"<h4>  please choose delete   </h4>";         }else{               echo $idid ;              echo "<br>" ;              $impid = implode(" , " ,  $_post['id']);    $sqldelete = ("delete  shopping id in ('".$impid."') ") ; $deletequery = mysqli_query($mysqlcon,$sqldelete) or die ("error : ".mysqli_error($mysqlcon));  // test ////////----------------------------------------//////////// if (mysqli_affected_rows($mysqlcon) > 0) {     echo "you have updated data.<br><br>"; } else {     echo "the data submitted matched current data nothing changed.<br><br>"; } if (!$deletequery) {     die("invalid query:" ); }   //var_dump($deletequery ); ////////----------------------------------------////////////                       if(isset($deletequery )){                         echo"<h3> done deleting .... !!</h3>";                      }else {echo "error while deleting...";}         }    }    $sqlcommand = "select * shopping  "; $result = mysqli_query($mysqlcon,$sqlcommand) or die(mysqli_error($mysqlcon));    echo ' <form action= "shop_sup.php"  method = "post"> <table width ="100%" cellpadding ="4" border="1" >  <tr> <th>check </th> <th>id</th> <th>jobs name</th> <th>description</th> <th> no students needed</th> <th>due date</th> </tr>';  while ($row = mysqli_fetch_array($result) ){  // name = 'id[]'     echo "<tr>  <td> <input type='checkbox'  name='id[]'  vlaue='". $row['id'] ."' /> </td>    <td>". $row['id'] ." </td>  <td> ". $row['jobname'] ." </td>  <td> ". $row['description'] ." </td>  <td> ". $row['nostudent'] . "</td> <td>". $row['date'] ." </td> </tr>";   }  echo ' </table> <br/>  <div align="center"> <input type="submit" name="delete" value="delete" />  <input type="reset" value="clear marks" /> </div>  </form>  ';  ?>  <html> <head><title> shopping.. </title></head> <br> <body> </body> </html>

the problem because of incorrect single quotes in delete query,

$sqldelete = ("delete  shopping id in ('".$impid."') ") ;                                                   ^          ^

so delete query should this:

$sqldelete = "delete shopping id in (" . $impid . ")";

edited:

if $_post['id'] contains array of strings, this:

// code  $impid = implode("' , '" ,  $_post['id']); $sqldelete = "delete shopping id in ('" . $impid . "')";  // execute $sqldelete query

also there's problem in html code. @ statement here,

<td> <input type='checkbox'  name='id[]'  vlaue='". $row['id'] ."' /> </td>                                            ^ here

it should be,

<td> <input type='checkbox' name='id[]' value='". $row['id'] ."' /> </td>

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