获取用于创建图像的变量

Question

I'm making my own 'captcha' form and I now have a page that generates the image:

<?php
   header('Content-Type: image/png');
   $im = imagecreatetruecolor(200, 50);

   $white = imagecolorallocate($im, 255, 255, 255);
   $gray = imagecolorallocate($im, 160, 160, 160);

   imagefilledrectangle($im, 0, 0, 200, 50, $white);

   $captcha = "SOMErandomTEXT";

   $font = 'Chewy.ttf';

   imagettftext($im, 20, 0, 0, 20, $gray, $font, $captcha);

   imagepng($im);
   imagedestroy($im);
?>

Now I also have another page that shows this image, inside the form. Now I want to get the value $captcha from the page shown above on the other page. How can I do it?

Answer 1

Using sessions did the job for me. PHP Sessions