I want to create a custom captcha.
so i need to convert text and background image as single image;
Now i can use only background color in imagecolorallocate()
here is my code
<?php
$text = rand (1000, 9999);
$my_img = imagecreate( 200, 80 );
$background = imagecolorallocate( $my_img,255, 255, 255);
$text_colour = imagecolorallocate( $my_img, 0, 0, 255 );
$line_colour = imagecolorallocate( $my_img, 255, 255, 255 );
imagestring( $my_img, 4, 30, 25, $text, $text_colour );
imagesetthickness ( $my_img, 5 );
imageline( $my_img, 30, 45, 165, 45, $line_colour );
header( "Content-type: image/png" );
imagepng( $my_img );
imagecolordeallocate( $line_color );
imagecolordeallocate( $text_color );
imagecolordeallocate( $background );
imagedestroy( $my_img );
?>