Form Validation

j00sh

Right now I use javascript form validation and want to switch to PHP. I have tried to look for tutorials and stuff, but I can seem to find it.

This is my contact form I have created. It may seem newb but I am new. Ha. Here it is:

contact_form.php

<?php

$pagetype = "Web";
$scriptname = "$pagetype Inquire Form";
$script_dir = "/www/";
$emailaddress[1] = "emailremoved";
$emailaddress[2] = "emailremoved";
$subjectheader = "$pagetype Inquire Form";
$redirecturl = "removed/index.php?x=web&cat=inquire&form=submit";
$message = "
    Name: $name
    Email: $email
    Company: $company
    Phone: $phone
    Website: $website
    Message: $msg \n\n
	IP Address: $ip
	Browser: $browser
	Date: $d
	Time: $t";

if ($_SERVER['REQUEST_METHOD'] == "POST") {

  $name     = $_POST[name];
  $email    = $_POST[email];
  $company  = $_POST[company];
  $phone    = $_POST[phone];
  $website  = $_POST[website];
  $msg      = $_POST[msg];
  $ip		= $_POST[ip];
  $browser  = $_POST[browser];
  $d	    = $_POST[d];
  $t	    = $_POST[t];
  $subject  = $_POST[subject];

   mail("$emailaddress[$who]", "$subjectheader $subject", "$message", "From: $email \nReply-To: $email");

  if ($redirecturl != "") {
     header("Location: $redirecturl");
  } else {
     echo "";
  }

} else {

   include($script_dir . 'index.php?x=web&cat=inquire');

}
?>

contact.php

<table width="411" border="0" cellpadding="1" cellspacing="2">
  <form action="contact_form.php" method="post" name="contact" id="contact">
    <tr> 
      <td width="110">Your Name *</td>
      <td width="293"><input type="text" size='30' maxlength='30' name="name" class='textbox' /> 
      </td>
    </tr>
    <tr> 
      <td>Email Address *</td>
      <td width="293"><input name='email' type='text' class='textbox' size='30' maxlength='30' /></td>
    </tr>
    <tr> 
      <td>Company Name</td>
      <td width="293"><input name='company' type='text' class='textbox' size='30' maxlength='30' /></td>
    </tr>
    <tr> 
      <td>Phone Number</td>
      <td width="293"><input name='phone' type='text' class='textbox' size='30' maxlength='30' /></td>
    </tr>
    <tr> 
      <td>Current Website</td>
      <td width="293"><input name='website' type='text' class='textbox'  size='30' maxlength='60' /></td>
    </tr>
    <tr> 
      <td>Email to *</td>
      <td width="293"><select name='who' class="textbox">
          <option value='1'>Sales</option>
        </select> </td>
    </tr>
    <tr> 
      <td>Subject *</td>
      <td width="293"><input name='subject' type='text' class='textbox'  value='' size='30' maxlength='60' /></td>
    </tr>
    <tr> 
      <td>Project Details *</td>
      <td width="293"><textarea name='msg' rows='7' cols='40' class='textbox'></textarea></td>
    </tr>
    <tr> 
      <td>&nbsp;</td>
      <td width="293">* Field Required<br /> 
        <br /> 
        <input name="submit" type="submit" id="submit" value="Send" onclick="this.disabled = true; this.value='Send'; this.form.submit();" /> 
        &nbsp; 
      <input name="reset" type="reset" id="reset" value="Reset" /> </td>
    </tr>
	<?php
	$ip 	 = @$REMOTE_ADDR;
	$browser = $HTTP_USER_AGENT;
	$d 		 = date("F j, Y");
	$t		 = date("g:i a", time() + 3600);
	?>
	 <input name="ip" type="hidden" id="ip" value="<?php echo $ip ?>">
	<input name="browser" type="hidden" id="browser" value="<?php echo $browser ?>">
   <input name="d" type="hidden" id="d" value="<?php echo $d ?>">
  <input name="t" type="hidden" id="t" value="<?php echo $t ?>">
  </form>
</table>

sfullman

//syntax i use in file contact.php

if($_POST){
   //validate data here - you need develop this per your specific form
   if(!trim($firstname)) $err[firstname]='First name cannot be blank';
   if(!trim($lastname)) $err[lastname]='Last name cannot be blank';
   // ... etc. ... etc.

   if(!$err){
      //send the email, write to the database, etc.

  //show the completion page
  require('contact_complete.php');
  exit;
   }else{
      //re-show the form, with error messages next to field(s)
      require('contact_form.php');
      exit;
   }
}else{
   //show the form
   require('contact_form.php');
}

sys4dm1n

sfullman wrote:

//syntax i use in file contact.php

if($_POST){
   //validate data here - you need develop this per your specific form
   if(!trim($firstname)) $err[firstname]='First name cannot be blank';
   if(!trim($lastname)) $err[lastname]='Last name cannot be blank';
   // ... etc. ... etc.

   if(!$err){
      //send the email, write to the database, etc.

  //show the completion page
  require('contact_complete.php');
  exit;
   }else{
      //re-show the form, with error messages next to field(s)
      require('contact_form.php');
      exit;
   }
}else{
   //show the form
   require('contact_form.php');
}

I don't think that would exactly work with his question-- I think what he needs is something that would be in contact_form.php? Maybe I'm just lost here, haha.

j00sh

I don't really get it, sfullman-- could anyone please help me with this?

umrguy

Actually, the code that sfullman posted would show the errors on contact form because the form would be included within the validation checking - note the require statements.

I'm not sure how else to help you j00sh. Basically, what you need to do is check all the 'required' fields on your form to make sure that they are not empty. sfullman's code takes all of your variables, cuts off the white space, and then checks them to see if they are empty. If they are, then error messages are generated and stored. On the contact_form page, you can have if loops to check to see if the errors are set. If they are, then you can display them.

If you have more questions about this j00sh, try to find me while I'm online and I can attempt to answer specific things.

j00sh

Okay-- I guess I dont exactly get how to implement the code into my script? I get what its trying todo, but I have no idea where I would put this. :xbones:

Enlightened

Heres the method i use to validate the input:

<?php 

errors[] = array();

 if(!isset($_POST['input1']) || (strlen($_POST['input1']) == 0) || (strlen($_POST['input1']) > 15)) 
 {
      errors[] = "Your input in input1 was invalid"; 
}else{ 
      trim($_POST['input1']); 
 }
?>

Seeing as php doesnt see "" as and empty string

This is the contact validation, so you can do like contact_validation.php
And in your form input, use it as your action, make sure method is post

j00sh

Enlightened wrote:
Heres the method i use to validate the input:
<?php 

errors[] = array();

 if(!isset($_POST['input1']) || (strlen($_POST['input1']) == 0) || (strlen($_POST['input1']) > 15)) 
 {
      errors[] = "Your input in input1 was invalid"; 
}else{ 
      trim($_POST['input1']); 
 }
?>
Seeing as php doesnt see "" as and empty string

This is the contact validation, so you can do like contact_validation.php
And in your form input, use it as your action, make sure method is post

But I still dont understand where I would put it in contact_form.php (where the mail() function is)

j00sh

anyone?