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hi i want to put a validation in my code so it will check all fields if they have been used  ive got the code pretty much sorted but they i think they is one problem with it on line 30 

 

<!DOCTYPE HTML> 
<html>
<head>
<style>
.error {color: #FF0000;}
</style>
</head>
<body> 
<?
$con = mysqli_connect("","","","");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
mysqli_query($con,"INSERT INTO tbl_club_contacts (CompanyName, FirstName, Address1, Address2, Area, City);
VALUES ('nelsons', 'luke', '', 'IT', '5 HIGHFIELD ROAD', 'LITTLEOVER', 'DERBY')");
 
 
mysqli_close($con);
 
 
// define variables and set to empty values
$companynameErr = $FirstNameErr = $Address1Err = $Address2Err = $AreaErr = $CityErr = "";
$companyname = $FirstName = $Address1 = $Address2 = $Area = $City = "";
 
if ($_SERVER["REQUEST_METHOD"] == "POST")
 
$allValid = true;
if(validation fails);
{
$allValid = false;
}
if($allValid) {
// connect to db, create query, execute query
}
As for checking the values you could
if($_POST['companyname']==null || $_POST['companyname']=="") {
$allValid = false;
}
?>
<form action="insertaddleads.php" method="post">
<p><span class="error">* required field.</span></p>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>"> 
   CompanyName: <input type="text" name="companyname">
   <span class="error">* <?php echo $CompanyNameErr;?></span>
   <br><br>
   FirstName: <input type="text" name="firstname">
   <span class="error">* <?php echo $FirstNameErr;?></span>
   <br><br>
   Address 1: <input type="text" name="address1">
   <span class="error">* <?php echo $Address1Err;?></span>
   <br><br>
   Address 2: <input type="text" name="address2">
   <span class="error">* <?php echo $Address2Err;?></span>
   <br><br>
   Area: <input type="text" name="area">
   <span class="error">* <?php echo $AreaErr;?></span>
   <br><br>
   City: <input type="text" name="city">
   <span class="error">* <?php echo $CityErr;?></span>
   <br><br>
   
   <input type="submit" name="submit" value="Submit"> 
 
</form>
 
<?
echo $CompanyName;
echo "<br>";
echo $FirstName;
echo "<br>";
echo $Address1;
echo "<br>";
echo $Address2;
echo "<br>";
echo $Area;
echo "<br>";
echo $City;
echo "<br>";
?>
<?php
foreach($_POST as $fieldName=>$fieldValue) {
     if($fieldValue == '') {
          print "<div>$fieldName is blank</div>";
     }
}
?>
</body>
</html>
 
heres the insert just incase
 
<?php
$con=mysqli_connect("","","","");
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }
 
$sql="INSERT INTO tbl_club_contacts (CompanyName, FirstName, Address1, Address2, Area, City)
VALUES
('$_POST[companyname]','$_POST[firstname]','$_POST[address1]','$_POST[address2]','$_POST[area]','$_POST[city]')";
 
if (!mysqli_query($con,$sql))
  {
   die('Error: ' . mysqli_error($con));
  }
echo "record added";
 
mysqli_close($con);
?>
<html>
<body>
 
<form action="addleads2.php" method="post">
<input type="submit", value = "go back">
</form>
 
</body>
</html>
 
Link to comment
https://forums.phpfreaks.com/topic/283647-validation/
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