how to put php code in image code example

Example 1: php create an image

<?php
header("Content-Type: image/png");//change the php file to an image
$im = @imagecreate(110, 20)
    or die("Cannot Initialize new GD image stream");//creates an image with the resolution x:110 y:20 
$background_color = imagecolorallocate($im, 0, 0, 0);//create an color with RGB
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  "A Simple Text String", $text_color);//draws text to the image with the font:1 xpos:5 ypos:5 
imagepng($im);//sends the image data to the user
imagedestroy($im);//destroys the image from the server
?>

Example 2: picture on picture php

$dest = imagecreatefrompng('mapCanvas.png');
$src = imagecreatefromjpeg('si.jpg');
imagealphablending($dest, false);
imagesavealpha($dest, true);
// Copy and merge
imagecopymerge($dest, $src, 17, 13, 0, 0, 60, 100, 100);

// Output and free from memory
header('Content-Type: image/png');
imagepng($dest);

imagedestroy($dest);
imagedestroy($src);