validation to an array of textboxes

[misslois74]

im using an array of textboxes and put a validation on those textboxes in which if a user puts in a non-numeric value it should display an error message and would not proceed but it seems that my validation is not working bec. eventhough i've already entered a numeric value im still getting the error message and would not proceed on the next step...

here is the validation:

function validate_input()
								{
									global $errors;
									if(!isset($_POST["qty"]) || trim($_POST["qty"]) == "")
									{
										$errors['qty1'] = "<font color='red' size='1'>*</font>";
										$errors['qty2'] = "<font color='red' size='1'> * Choose at least one item</font><br>";
									}
									else if(!is_numeric(trim($_POST["qty"])))
									{
										$errors['qty3'] = "<font color='red' size='1'>*</font>";
										$errors['qty4'] = "<font color='red' size='1'>Should be numeric value</font><br>";
									}
									else if(isFloat(trim($_POST["qty"])))
									{
										$errors['qty5'] = "<font color='red' size='1'>*</font>";
										$errors['qty6'] = "<font color='red' size='1'>Should be integer value</font><br>";
									}
								}

and here is the form:

function display_form()
								{
									global $errors;
							?>
		            <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
                                  <p>Enter the quantity of the product you wish to order.</p><br />
					<?php  if(isset($errors['qty2']))
					 	   { 
						   		echo $errors['qty2'];
						   } 
						   else if(isset($errors['qty4']))
					 	   { 
						   		echo $errors['qty4'];
						   }
						   else if(isset($errors['qty6']))
					 	   { 
						   		echo $errors['qty6'];
						   }  ?>
                            
                            
							<table width="650" border="0">
                                          <tr>
                                            <td width="135">Product Code</td>
                                            <td width="153"><div align="center">Product Name</div></td>
                                            <td width="103"><div align="center">Image</div></td>
                                            <td width="67"><div align="center">Price</div></td>
                                            <td width="56"><div align="center">&nbsp;</div></td>
                                            <td width="110"><div align="center">Quantity</div></td>
                                          </tr>
                                        </table>

                  						<table width="655" border="0">
								<?php
									//print items from the catalog for selection
									include "db_config.php";
									$quer = "Select * from tbl_candle order by product_name";
									$res = mysql_query($quer) or die(mysql_error());
									//$nums 
									while($rows = mysql_fetch_array($res))
									{  ?>
										<tr><td width="176"><b><?php echo $rows[product_code]; ?></b></td>
										<td width="173"><b><?php echo $rows[product_name]; ?></b></td>
										<td width="125"><a href="<?php echo $rows[product_image]; ?>" onclick="window.open(this.href, 'child', 'height=200, width=250'); return false"><img src="<?php echo $rows[product_image]; ?>" width="74" height="69" title="CLICK TO ENLARGE"></a></td>
										<td width="70"><b><?php echo $rows[product_price]; ?></b></td>
                                        <td><center><input type="checkbox" name="order[]" value="<?php echo $rows[product_id]; ?>" onClick="myFunction('<?php echo $rows['product_id']. "qty"; ?>')"></center></td>
										<td><center><input type="text" name="qty[<?php echo $rows['product_id']; ?>]" size="5" id="<?php echo $rows['product_id']."qty"; ?>" disabled></center></td><td><?php echo $errors['qty1']; echo $errors['qty3']; echo $errors['qty5']; ?></td></tr>
										
							  <?php }
								}  ?>
								
								<tr>
								<td colspan="5"><br />
                                <input type="hidden" value="additems" name="action" />
								<center><input type="submit" name="submit" value="Add items to order" title="Click to Order"></center>
								</td>
								</tr>
								</table>
                         </form>

thanks in advance.

 

[vacunita]

From what I can gather, your $_POST['qty'] variable is an array, yet you are performing checks on it as if it where a single value.

Basically you are checking to see whether your array of qty text boxes is numeric, but of course its not, because its an array.

You need to check each element of your array to validate its actually numeric.

Use a loop to go through each value inside the qty array and check if its numeric.

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