PHP | imagecopymerge() Function

Last Updated : 15 Mar, 2025

The imagecopymerge() function is an inbuilt function in PHP that is used to copy and merge the image into a single image. This function returns True on success or False on failure.

Syntax:

bool imagecopymerge ( $dst_image, $src_image, $dst_x, $dst_y, 
$src_x, $src_y, $src_w, $src_h, $pct )

Parameters: This function accepts nine parameters, as mentioned above and described below:

$dst_image: This parameter is used to set the destination image link resource.
$src_image: This parameter is used to set the source image link resource.
$dst_x: This parameter is used to set the x-coordinate of the destination point.
$dst_y: This parameter is used to set the y-coordinate of the destination point.
$src_x: This parameter is used to set the x-coordinate of the source point.
$src_y: This parameter is used to set the y-coordinate of the source point.
$src_w: This parameter is used to set the source width.
$src_h: This parameter is used to set the source height.
$pct: The two images will be merged with the help of $pct variables. The range of PCT is 0 to 100. If $pct = 0, then no action is taken, and when $pct = 100, then this function behaves similarly to the imagecopy() function for palette images, except ignoring the alpha components. It implements alpha transparency for true color images.

Return Value: This function returns True on success or False on failure. The below programs illustrate the imagecopymerge() function in PHP.

Program 1: Input Source Image:

Input Destination Image:

php

<?php // Create image instances $dest = imagecreatefromgif( 'https://media.geeksforgeeks.org/wp-content/uploads/animateImages.gif'); $src = imagecreatefromgif( 'https://media.geeksforgeeks.org/wp-content/uploads/slider.gif');  // Copy and merge imagecopymerge($dest, $src, 10, 10, 0, 0, 500, 200, 75);  // Output and free from memory header('Content-Type: image/gif'); imagegif($dest);  imagedestroy($dest); imagedestroy($src); ?>

Output:

copy merge image

Program 2: Input Source Image:

source image

Input Destination Image:

destination image

php

<?php // Create image instances $dest = imagecreatefrompng( 'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-9.png'); $src = imagecreatefrompng( 'https://media.geeksforgeeks.org/wp-content/uploads/col1.png');  // Copy and merge imagecopymerge($dest, $src, 10, 10, 0, 0, 500, 200, 75);  // Output and free from memory header('Content-Type: image/png'); imagegif($dest);  imagedestroy($dest); imagedestroy($src); ?>