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passing a variable from php to html/javascrippt

bindiya

By bindiya
in PHP Coding Help

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bindiya Regular Member

bindiya

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I have a contact form in html with captcha image.The Captcha image is randomnly created using a php file and stored in a session variable.

But when i check whether the session (captcha variable) and the use entered captcha value i dont get answer.

posting my code below

 

contact.php(html's action page)
if(isset($_POST['csubmit']))
{
$name=$_POST['cname'];
$lname=$_POST['last_name'];
$email=$_POST['cemail'];
$tele=$_POST['telephone'];
$comments=$_POST['comments'];
$date_posted=date('Y:m:d H:i:s');$status='Inactive';
$security_code=$_POST['security_code'];
//echo $security_code;
//echo"<br>". $_SESSION['security_code'];

//$_SESSION['security_code'] = $code;
//echo $_SESSION['security_code'];
//if( $_SESSION['security_code'] == $_POST['security_code'] && !empty($_SESSION['security_code'] ) ) {
//if(!(empty($_SESSION['security_code'] ) ||strcmp($_SESSION['security_code'], $_POST['security_code']) != 0))

//if(empty($_SESSION['security_code'] ) || $_POST['security_code']) != 0)
  

//if( $_SESSION['security_code'] == $_POST['security_code'] && !empty($_SESSION['security_code'] ) ) {
$sql="insert into contact_us(first_name,last_name,email,contact_number,comments,status,date_posted) values('$name','$lname','$email','$tele','$comments','$status','$date_posted')";
$res=mysql_query($sql);


$mail_to_user ="qq@qq.com";
$mail_subject_user="Comments  "; 
$mail_body_user='<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td colspan="3"> Sir,<br> Please see the comments </td>
</tr>
<tr>
<td width="20%"> </td>
<td width="14%"><strong>First Name</strong></td>
<td width="66%">'.$_POST[cname].'</td>
</tr>
<tr>
<td> </td>
<td><strong>Last Name</strong></td>
<td>'.$_POST[last_name].'</td>
</tr>
<tr>
<td> </td>
<td><strong>Email</strong></td>
<td>'.$_POST[cemail].'</td>
</tr>
<tr>
<td> </td>
<td><strong>Telephone Number</strong></td>
<td>'.$_POST[telephone].'</td>
</tr>
<tr>
<td> </td>
<td><strong>Comments</strong></td>
<td>'.$_POST[comments].'</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr> 
</table>'; 


$headers_user="MIME-Verson:1.0\n";
$headers_user.="Content-Type: text/html;charset=iso-8859-1\n";
$headers_user.="Content-Transfer-Encoding: 8bit\n";
$headers_user.="From: bb@qq.com\n"; 
$headers_user .="Bcc: aa@gg.com\r\n"; 
mail($mail_to_user,$mail_subject_user,$mail_body_user,$headers_user); 
echo "<script language='javascript'>alert('Message has been sent to the Administrator.');</script>";

//=================email to user
$mail_to_user1 = $_POST['cemail']; 
$mail_subject_user1 = "Thanks for contacting with us "; 

$mail_body_user1 ='<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td> Sir,<br> 
We are very much glad to hear from you. We will contact you soon. <br/><br/> Thanks,
<br/>Cusrtomer Care</td>
<td> </td>
<td> </td>
</tr>
</table>'; 

$headers_user1="MIME-Verson:1.0\n";
$headers_user1.="Content-Type: text/html;charset=iso-8859-1\n";
$headers_user1.="Content-Transfer-Encoding: 8bit\n";
$headers_user1.="From: aa@qq.com "; 

mail($mail_to_user1,$mail_subject_user1,$mail_body_user1,$headers_user1);


//header('Location:contact_us.html');
echo "<script> self.location='contact_us.html';</script>";
//}
/*else{

      //Note: the captcha code is compared case insensitively.
      //if you want case sensitive match, update the check above to
      // strcmp()
  //unset($_SESSION['security_code']);
  echo"<script language='javascript'>alert('The security code you entered is not correct');</script>";
  echo "<script> self.location='contact_us.html';</script>";
  //header('Location:contact_us.html');
     // $errors .= "\n The captcha code does not match!";
  }*/

/*else{
?>
<script language="javascript">
alert("The security code you entered is not correct");


history.go(-1);
</script>
<?php
} */

}

unset($_SESSION['security_code']);








html form=========contact_us.html
<form  name='contact_form' id='contact_form' method="post"   action="contact.php">
                      <table width="518" height="341" align="center"  border="0" style=" vertical-align:top"> 
                            
                        <tbody><tr><td width="202" height="28" valign="middle"  align="left">
      
<label for="first_name"><span class="style26 style20">First Name *</span></label>
                            	 </td>
                        <td width="14" align="center" valign="middle">:</td>
               	     <td width="448" valign="top"  >
   	    <div class="con" ><input type="text" size="30" maxlength="50" name="cname" id="cname"  class="contact_text">   </div>                    	  </td>
   	      </tr>
                            
                                <tr>
                             <td valign='middle'>
                              <label for="last_name"><span class="style26 style20">Last Name *</span></label>                             </td>
                             <td align="center" valign="middle">:</td>
                             <td valign="top">
                             <div class="con" > <input type="text" size="30" maxlength="50" name="last_name" id="last_name" class="contact_text"></div>                             </td>
                            </tr>
                            <tr>
                             <td valign="middle">
                            
                              <label for="email"><span class="style26 style20">Email Address *</span></label>                             </td>
                             <td align="center" valign="middle">:</td>
                             <td valign="top"><div class="con" ><input type="text" size="30" maxlength="50" name="cemail" id="cemail" class="contact_text"/></div></td>
                          </tr>
            <tr>
                             <td valign="middle">
                              <label for="telephone"><span class="style26 style20">Telephone Number</span></label>                        </td>
                             <td align="center" valign="middle">:</td>
                             <td valign="top">
                             <div class="con" > <input type="text" size="30" maxlength="80" name="telephone" id="telephone" class="contact_text" >  </div>                      </td>
                      </tr>
                            <tr>
                             <td height="123" valign="middle">
                              <label for="comments"><span class="style26 style20">Comments *</span></label>                             </td>
                             <td align="center" valign="middle">:</td>
                            
                             <td valign="middle">
                              <div class="cmn_ct"><textarea rows="6" cols="25" maxlength="1000" name="comments" id="comments"    onfocus=" this.value = this.value.replace(/\s+/g,'');"  onblur="checkLength(this.value,0,100);" class="cmn_text"></textarea></div>
                                                          </td>
                          </tr>
                      <tr><td><label for="security code"><span class="style26 style20">Security Code *</span></label></td><td align="center" valign="middle"></td><td><img  src="CaptchaSecurityImages.php?width=100&height=40&characters=5" alt="security_code" height="22" id="security_code" name='security_code' class='secuimage'/><br />
                            
                            
	<div class="se_code"><input id="security_code" name="security_code" type="text" class="secuInput"  /></div>
                  <center></td>
                      <tr>
                             <td height="26" colspan="3" style="text-align: center;">
                             <table  width=69% align="right">
                               <tr><td align='left'>
                              <input type="submit"  value="Submit" name="csubmit" onclick="return verify();"> </td></tr></table>                        </td>
            </tr></table></form></p>






CaptchaSecurityImages.php
<?php
class CaptchaSecurityImages {

var $font = 'monofont.ttf';

function generateCode($characters) {
	/* list all possible characters, similar looking characters and vowels have been removed */
	$possible = '23456789bcdfghjkmnpqrstvwxyz';
	$code = '';
	$i = 0;
	while ($i < $characters) { 
		$code .= substr($possible, mt_rand(0, strlen($possible)-1), 1);
		$i++;
	}
	return $code;
}

function CaptchaSecurityImages($width='120',$height='40',$characters='6') {
	$code = $this->generateCode($characters);
	/* font size will be 75% of the image height */
	$font_size = $height * 0.75;
	$image = @imagecreate($width, $height) or die('Cannot initialize new GD image stream');
	/* set the colours */
	$background_color = imagecolorallocate($image, 255, 255, 255);
	$text_color = imagecolorallocate($image, 20, 40, 100);
	$noise_color = imagecolorallocate($image, 100, 120, 180);
	/* generate random dots in background */
	for( $i=0; $i<($width*$height)/3; $i++ ) {
		imagefilledellipse($image, mt_rand(0,$width), mt_rand(0,$height), 1, 1, $noise_color);
	}
	/* generate random lines in background */
	for( $i=0; $i<($width*$height)/150; $i++ ) {
		imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color);
	}
	/* create textbox and add text */
	$textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Error in imagettfbbox function');
	$x = ($width - $textbox[4])/2;
	$y = ($height - $textbox[5])/2;
	imagettftext($image, $font_size, 0, $x, $y, $text_color, $this->font , $code) or die('Error in imagettftext function');
	/* output captcha image to browser */
	header('Content-Type: image/jpeg');
	imagejpeg($image);
	imagedestroy($image);
	$_SESSION['security_code'] = $code;
}

}

$width = isset($_GET['width']) ? $_GET['width'] : '120';
$height = isset($_GET['height']) ? $_GET['height'] : '40';
$characters = isset($_GET['characters']) && $_GET['characters'] > 1 ? $_GET['characters'] : '6';

$captcha = new CaptchaSecurityImages($width,$height,$characters);
?>

I just want to know how will i pass a session variable frm php to html thru js and from there to the php page where action of the html page occurs?

 

 

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