[RESOLVED] captcha problem

[availer]

Hey guys im having a captcha problem, it WAS working but after I uploaded some files it stopped working. Im not sure why, this is the captcha.php which hasnt been changed

<?php
include("include/config.php");

class CaptchaSecurityImages {

var $font = 'monofont.ttf';

function generateCode($characters) {
	$possible = '23456789bcdfghjkmnpqrstvwxyz';
	$code = '';
	$i = 0;
	while ($i < $characters) { 
		$code .= substr($possible, mt_rand(0, strlen($possible)-1), 1);
		$i++;
	}
	return $code;
}

function CaptchaSecurityImages($width='70',$height='28',$characters='5') {
	$code = $this->generateCode($characters);
	$font_size = $height * 0.75;
	$image = @imagecreate($width, $height) or die('Cannot initialize new GD image stream');
	$background_color = imagecolorallocate($image, 238, 238, 238);
	$text_color = imagecolorallocate($image, 0, 0, 0);
	$noise_color = imagecolorallocate($image, 166, 165, 165);
	for( $i=0; $i<3; $i++ ) {
		imagefilledellipse($image, mt_rand(0,$width), mt_rand(0,$height), 1, 1, $noise_color);
	}
	for( $i=0; $i<5; $i++ ) {
		imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color);
	}
	$textbox = imagettfbbox($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 , $code) or die('Error in imagettftext function');
	header('Content-Type: image/jpeg');
	imagejpeg($image);
	imagedestroy($image);
	$_SESSION['imagecode'] = $code;
}

}

$width = isset($_GET['width']) ? $_GET['width'] : '70';
$height = isset($_GET['height']) ? $_GET['height'] : '28';
$characters = isset($_GET['characters']) && $_GET['characters'] > 1 ? $_GET['characters'] : '5';

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

?>

and here is the site (MOD EDIT: URL removed - see below for error) to see the error,

can i have some help please? Many thanks guys.

PHP error message wrote:

Warning: Cannot modify header information - headers already sent by (output started at /home3/lovelik2/public_html/include/lang/english.php:2) in /home3/lovelik2/public_html/captcha.php on line 36

[bradgrafelman]

There's no need to post the URL for the site - just post the error message instead (which I've done for you above).

As the error message states, the 'english.php' script is outputting data before captcha.php can modify the headers.

[availer]

sorry my friend, I did not see that error so I didnt know what to post. How can I fix it? Many thanks and sorry again.

[availer]

Fixed, thank you so very much!

[bradgrafelman]

availer wrote:

I did not see that error

That's because the error was being generated by captcha.php itself, so you'd have to actually visit the URL for the captcha.php script directly rather than just looking at the broken image on the index page.

avalier wrote:

How can I fix it?

To answer, I defer to an old saying:

Unknown wrote:

Patient: Doctor, it hurts when I do this.
Doctor: Well, don't do that!

So if outputting data before modifying headers causes errors, the solution is.. don't do that! 🙂

Outputting data causes HTTP headers to be sent (since they must come before the content), meaning any code executed later can't modify them (such as to set a Content-Type header in a CAPTCHA script). So... stop your 'english.php' script from outputting data.

[bradgrafelman]

D'oh! Took too long to reply. Glad you got it sorted - don't forget to mark this thread resolved using the link on the Thread Tools menu above.