~~~ PHP <form action="playmobil.php" method="POST"> <table align="center" border="1"> <tr> <th></th> <th>Wert</th> <th></th> <th>INTO</th> <th></th> <th>ID</th> <th></th> <th>Senden</th> </tr> <t> <td><b>UPDATE playmobil SET</td> <td><input type="text" name="Wert" /></td> <td><b>=</td> <td><input type="text" name="into" /></td> <td><b>WHERE ID =</td> <td><input type="int" name="ID2" /></td> <td><b>;</td> <td><input type="submit" name="submit2" value="Senden" /></td> </t> </table> </form> <?php if(isset($_POST["submit2"])): echo $_POST["Wert"]; echo $_POST["into"]; echo $_POST["ID2"]; $Wert = $_POST["Wert"]; $into = $_POST["into"]; $ID2 = $_POST["ID2"]; $absenden2 = $mysqli->prepare("UPDATE playmobil SET ? = '?' WHERE ID=?"); $absenden2->bind_param("ssi", $Wert, $into, $ID2); <!-- Zeile 150--> $absenden2->execute(); $absenden2->close(); endif; ~~~ Warum erhalte ich diese Fehlermeldung Fatal error: Uncaught Error: Call to a member function bind_param() on boolean in D:\Programme\XMAPP\htdocs\playmobil.php:150 Stack trace: #0 {main} thrown in D:\Programme\XMAPP\htdocs\playmobil.php on line 150

~~~ PHP <form action="playmobil.php" method="POST"> <table align="center" border="1"> <tr> <th></th> <th>Wert</th> <th></th> <th>INTO</th> <th></th> <th>ID</th> <th></th> <th>Senden</th> </tr> <t> <td><b>UPDATE playmobil SET</td> <td><input type="text" name="Wert" /></td> <td><b>=</td> <td><input type="text" name="into" /></td> <td><b>WHERE ID =</td> <td><input type="int" name="ID2" /></td> <td><b>;</td> <td><input type="submit" name="submit2" value="Senden" /></td> </t> </table> </form> <?php if(isset($_POST["submit2"])): echo $_POST["Wert"]; echo $_POST["into"]; echo $_POST["ID2"]; $Wert = $_POST["Wert"]; $into = $_POST["into"]; $ID2 = $_POST["ID2"]; $absenden2 = $mysqli->prepare("UPDATE playmobil SET ? = '?' WHERE ID=?"); $absenden2->bind_param("ssi", $Wert, $into, $ID2); <!-- Zeile 150--> $absenden2->execute(); $absenden2->close(); endif; ~~~ Warum erhalte ich diese Fehlermeldung ~~~ HTML Fatal error: Uncaught Error: Call to a member function bind_param() on boolean in D:\Programme\XMAPP\htdocs\playmobil.php:150 Stack trace: #0 {main} thrown in D:\Programme\XMAPP\htdocs\playmobil.php on line 150 ~~~