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SQL-database bijwerken met selectievakjes

Ik heb een echt hacky-manier toegevoegd om de update uit te voeren. Je moet oppassen voor SQL-injectie en andere slechte dingen bij het gebruik van post ... zorg ervoor dat u uw gegevens altijd valideert en opschoont. De "hacky" manier werkt omdat we met gehele waarden werken en die zijn gemakkelijk op te schonen.

Schermafbeelding:

Dit is mijn tafel... ik noemde het zo voor stackoverflow...

+----+-------+-------+-------+-------+-------+-------+-------+-------+
| id | week1 | week2 | week3 | week4 | week5 | week6 | week7 | week8 |
+----+-------+-------+-------+-------+-------+-------+-------+-------+
|  1 |       |       |       |       |       |       |       |       |
|  2 | 1     |       |       |       |       |       |       |       |
|  3 | 1     |       | 1     |       |       |       |       |       |
|  4 | 1     |       | 1     |       | 1     |       |       |       |
|  5 | 1     |       | 1     |       | 1     |       | 1     |       |
+----+-------+-------+-------+-------+-------+-------+-------+-------+

Dit is mijn PHP-bestand... (plak het in een leeg PHP-document om het uit te voeren, het staat op zichzelf, behalve het wijzigen van de db-verbinding en query)

<?php 
$mysqli = new mysqli("localhost", "root", "password", "test"); 

if (!empty($_POST)) {
   print "<pre>POST VARS: \n".print_r($_POST,true)."</pre>";

   foreach($_POST as $i => $data) 
   { 
      if (substr($i,0,3)=='row' && is_numeric(substr($i,3)))
      {
         $row_id = substr($i,3);  
         $data = array_flip($data); 
         $values = array(); 

         for ($x=1; $x<9; $x++) {
            $values[] = "week$x = ". ((isset($data[$x])) ? '1' : '0');  
         }   

         $stmt = "\nupdate so ".
                 "\n  set ".implode(", \n      ",$values).
                 "\n  where id = $row_id; \n"; 

         $update = $mysqli->query($stmt); 
         if ($update) { print "Row $row_id updated successfully.<br/>"; } 
      }
      print "<br/>"; 
   }
}
$result = $mysqli->query("select * from so"); 

$mysqli->close();
?>

<form method="post" id="updating" action="<?php $_PHP_SELF ?>"> 
   <?php
   while($row = $result->fetch_object())
   {

      $count = 1;

      print "<div style='border:1px solid black; display:inline-block;'>\n";
      print "Row ".$row->id."<br/>\n"; 
      while($count < 9) 
      {
         $week = "week$count";

         $checkvalue = $row->{$week};
         ?>
         Week<?php echo $count ?> <input type="checkbox" id="Week<?php echo$count;?>" name="row<?php echo $row->id 
         ?>[]" value="<?php echo $count;?>" <?php if($checkvalue==1){
         ?>  checked="checked" <?php } ?> />&nbsp;&nbsp;&nbsp;
         <?php   
         $count++; 
      }
      print "</div><br/><br/>\n\n\n"; 
   }
   ?>
        <input name="update" type="submit" id="update" value="Update">
    </form>
"; foreach($_POST als $i => $data) { if (substr($i,0,3)=='row' &&is_numeric(substr($i,3))) { $row_id =substr($i, 3); $data =array_flip($data); $waarden =array(); for ($x=1; $x<9; $x++) { $values[] ="week$x =". ((isset($data[$x])) ? '1' :'0'); } $stmt ="\nupdate dus ". "\n stel ".implode(", \n ",$values) in. "\n waar id =$row_id; \n"; $update =$mysqli->query($stmt); if ($update) { print "Rij $row_id succesvol bijgewerkt.
"; } } print "
"; }}$result =$mysqli->query("select * from so"); $mysqli->close();?>
fetch_object()) { $telling =1; print "
\n"; print "Rij ".$row->id."
\n"; while($count <9) { $week ="week$count"; $checkvalue =$row->{$week}; ?> Week checked="checked" />   

\n\n\n"; } ?>

Dit is de $_POST na indienen:

POST VARS: 
Array
(
    [row2] => Array
        (
            [0] => 1
        )

    [row3] => Array
        (
            [0] => 1
            [1] => 3
        )

    [row4] => Array
        (
            [0] => 1
            [1] => 3
            [2] => 5
        )

    [row5] => Array
        (
            [0] => 1
            [1] => 3
            [2] => 5
            [3] => 7
        )

    [update] => Update
)

Mijn "bron bekijken" van het formulier:

<form method="post" id="updating" action=""> 
   <div style='border:1px solid black; display:inline-block;'>
Row 1<br/>
         Week1 <input type="checkbox" id="Week1" name="row1[]" value="1"  />&nbsp;&nbsp;&nbsp;
                  Week2 <input type="checkbox" id="Week2" name="row1[]" value="2"  />&nbsp;&nbsp;&nbsp;
                  Week3 <input type="checkbox" id="Week3" name="row1[]" value="3"  />&nbsp;&nbsp;&nbsp;
                  Week4 <input type="checkbox" id="Week4" name="row1[]" value="4"  />&nbsp;&nbsp;&nbsp;
                  Week5 <input type="checkbox" id="Week5" name="row1[]" value="5"  />&nbsp;&nbsp;&nbsp;
                  Week6 <input type="checkbox" id="Week6" name="row1[]" value="6"  />&nbsp;&nbsp;&nbsp;
                  Week7 <input type="checkbox" id="Week7" name="row1[]" value="7"  />&nbsp;&nbsp;&nbsp;
                  Week8 <input type="checkbox" id="Week8" name="row1[]" value="8"  />&nbsp;&nbsp;&nbsp;
         </div><br/><br/>


<div style='border:1px solid black; display:inline-block;'>
Row 2<br/>
         Week1 <input type="checkbox" id="Week1" name="row2[]" value="1"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week2 <input type="checkbox" id="Week2" name="row2[]" value="2"  />&nbsp;&nbsp;&nbsp;
                  Week3 <input type="checkbox" id="Week3" name="row2[]" value="3"  />&nbsp;&nbsp;&nbsp;
                  Week4 <input type="checkbox" id="Week4" name="row2[]" value="4"  />&nbsp;&nbsp;&nbsp;
                  Week5 <input type="checkbox" id="Week5" name="row2[]" value="5"  />&nbsp;&nbsp;&nbsp;
                  Week6 <input type="checkbox" id="Week6" name="row2[]" value="6"  />&nbsp;&nbsp;&nbsp;
                  Week7 <input type="checkbox" id="Week7" name="row2[]" value="7"  />&nbsp;&nbsp;&nbsp;
                  Week8 <input type="checkbox" id="Week8" name="row2[]" value="8"  />&nbsp;&nbsp;&nbsp;
         </div><br/><br/>


<div style='border:1px solid black; display:inline-block;'>
Row 3<br/>
         Week1 <input type="checkbox" id="Week1" name="row3[]" value="1"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week2 <input type="checkbox" id="Week2" name="row3[]" value="2"  />&nbsp;&nbsp;&nbsp;
                  Week3 <input type="checkbox" id="Week3" name="row3[]" value="3"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week4 <input type="checkbox" id="Week4" name="row3[]" value="4"  />&nbsp;&nbsp;&nbsp;
                  Week5 <input type="checkbox" id="Week5" name="row3[]" value="5"  />&nbsp;&nbsp;&nbsp;
                  Week6 <input type="checkbox" id="Week6" name="row3[]" value="6"  />&nbsp;&nbsp;&nbsp;
                  Week7 <input type="checkbox" id="Week7" name="row3[]" value="7"  />&nbsp;&nbsp;&nbsp;
                  Week8 <input type="checkbox" id="Week8" name="row3[]" value="8"  />&nbsp;&nbsp;&nbsp;
         </div><br/><br/>


<div style='border:1px solid black; display:inline-block;'>
Row 4<br/>
         Week1 <input type="checkbox" id="Week1" name="row4[]" value="1"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week2 <input type="checkbox" id="Week2" name="row4[]" value="2"  />&nbsp;&nbsp;&nbsp;
                  Week3 <input type="checkbox" id="Week3" name="row4[]" value="3"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week4 <input type="checkbox" id="Week4" name="row4[]" value="4"  />&nbsp;&nbsp;&nbsp;
                  Week5 <input type="checkbox" id="Week5" name="row4[]" value="5"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week6 <input type="checkbox" id="Week6" name="row4[]" value="6"  />&nbsp;&nbsp;&nbsp;
                  Week7 <input type="checkbox" id="Week7" name="row4[]" value="7"  />&nbsp;&nbsp;&nbsp;
                  Week8 <input type="checkbox" id="Week8" name="row4[]" value="8"  />&nbsp;&nbsp;&nbsp;
         </div><br/><br/>


<div style='border:1px solid black; display:inline-block;'>
Row 5<br/>
         Week1 <input type="checkbox" id="Week1" name="row5[]" value="1"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week2 <input type="checkbox" id="Week2" name="row5[]" value="2"  />&nbsp;&nbsp;&nbsp;
                  Week3 <input type="checkbox" id="Week3" name="row5[]" value="3"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week4 <input type="checkbox" id="Week4" name="row5[]" value="4"  />&nbsp;&nbsp;&nbsp;
                  Week5 <input type="checkbox" id="Week5" name="row5[]" value="5"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week6 <input type="checkbox" id="Week6" name="row5[]" value="6"  />&nbsp;&nbsp;&nbsp;
                  Week7 <input type="checkbox" id="Week7" name="row5[]" value="7"   checked="checked"  />&nbsp;&nbsp;&nbsp;
                  Week8 <input type="checkbox" id="Week8" name="row5[]" value="8"  />&nbsp;&nbsp;&nbsp;
         </div><br/><br/>


        <input name="update" type="submit" id="update" value="Update">
    </form>

bewerken
Ik kwam terug op dit antwoord om naar iets te verwijzen en ik realiseerde me net dat ik ID opnieuw gebruikte waarden voor de selectievakjes. Het was geen probleem in deze situatie, maar het is altijd een slechte gewoonte. Elk selectievakje moet een ID hebben die uniek is op de pagina. Dus... het zou eigenlijk id="row1week1" . moeten zijn , id="row1week2" ... id="row8week1" ... id="row8week8" .




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