Making Sure They Did Not Leave Any Required Fields Blank

dvayne

Nov 9 2007, 09:40 AM

how to make sure they did not leave any required fields blank?

CODE

<?php
    include("config/config.inc.php");
    include("config/dbcon.php");
    include("checksession.php");

        if(isset($_POST['action'])){
        $gname = $_POST['gname'];
        $gemail = $_POST['mail'];
        $gmsg = $_POST['gmsg'];
        $date = date("m.d.y");
$sql = "insert into tblguestbook ";
$sql .= "(guestname, guestemail, guestmessage, guestdate)";
$sql .=" values('$gname','$gemail','$gmsg','$date')";
    mysql_query($sql);
    }

?>

<html>
<head><title>My Guestbook</title>
<link href="styles/style.css" rel="stylesheet" />
<script language="javascript" src="includes/validate.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><style type="text/css">

</style></head>
<body>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td width="17%"> </td>
    <td width="83%" valign="bottom" > </td>
  </tr>
</table>

<form name = "form1" method="post" action="<?php echo $_SERVER['PHP_SELF'];?>" onSubmit="return validateForm(form1)">
  <p class="fontSubTitle">Sign to Guestbook</p>
  <p class="fontSubTitle"><span class="fontText">Name: </span>
    <input type="text" name="gname">
    <br>
    <span class="fontText">Email:</span>
    <input name="mail" type="text" id="mail">
    <br>
    <span class="fontText">Message:</span>
    <textarea cols="35" rows="6" name="gmsg"></textarea>
  </p>
  <p class="fontSubTitle">
    <input type="submit" value="Send" name="action">
    <input name="reset" type="reset" value="Clear">
    <br>
  </p>
</form>
  <p>
    <?php
    $results = mysql_query("select * from tblguestbook order by guestid desc");

    while($data = mysql_fetch_object($results)){
    echo "<table width=\"500\" border=\"0\" cellpadding=\"5\" cellspacing=\"1\" class=\"borderThin\" >";
echo " <tr>\n";
echo "<td class=\"fontTextTwo\" align=\"left\" width=\"60%\">name: ";
echo "<a href=\"mailto:".$data->guestemail."\" class=\"b\">".$data->guestname."</a>";
echo "</td>\n";
            echo "<td class=\"fontTextTwo\" align=\"right\"  width=\"40%\">dated posted: ".$data->guestdate."</td>\n";
echo "  </tr>\n";
          echo "<tr>\n";
           echo " <td colspan=\"2\" class=\"fontText\" align=\"left\">".$data->guestmessage."</td>\n";
echo " </tr>\n";
echo "</table><br>";
    }

?>
</p>

</body>
</html>
<?php
    mysql_close($dbh);
?>

any help would be appreciated.

pop

Nov 9 2007, 12:03 PM

If you want to check that something isn't empty use operator == .
Let's say you want to check your post['name'] to be empty, you can use

CODE

if (post['name'] !== "")

In this case if condition will only return true if post['name'] !== ""

Also you can use empty

CODE

if (!empty(post['name']) {

Will return true if your post['name'] is everything but empty.

To check your post['name'] even better, you can use regular expression

CODE

$pattern = '/[^a-z]/i';
if(preg_match($pattern, $string)>0) {

returns true if there was some other character than letter

gogoily

Dec 11 2007, 05:49 AM

I add one tips:

CODE

if(preg_match("/^\s*$/",$string))
{
die("Sorry, but all fileds must be filled !");
}

This code can prevent any kind of blank, including spacing.

online

Dec 20 2007, 07:53 PM

for examle... (i make this simple)

CODE

<?php
if($_GET['act'] == 'fields')
{
echo "<br><b>Please fill in all the fields.</b><br>";
}

if($message == '')
{
header("location:?do=&act=fields");
exit;
}
?>

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