W3cubDocs

/PHP

imagecopymerge

(PHP 4 >= 4.0.1, PHP 5, PHP 7, PHP 8)

imagecopymerge — Copy and merge part of an image

Description

imagecopymerge(
 GdImage $dst_image,
 GdImage $src_image,
 int $dst_x,
 int $dst_y,
 int $src_x,
 int $src_y,
 int $src_width,
 int $src_height,
 int $pct
): bool

Copy a part of src_image onto dst_image starting at the x,y coordinates src_x, src_y with a width of src_width and a height of src_height. The portion defined will be copied onto the x,y coordinates, dst_x and dst_y.

Parameters

dst_image

Destination image resource.

src_image

Source image resource.

dst_x

x-coordinate of destination point.

dst_y

y-coordinate of destination point.

src_x

x-coordinate of source point.

src_y

y-coordinate of source point.

src_width

Source width.

src_height

Source height.

pct

The two images will be merged according to pct which can range from 0 to 100. When pct = 0, no action is taken, when 100 this function behaves identically to imagecopy() for pallete images, except for ignoring alpha components, while it implements alpha transparency for true colour images.

Return Values

Returns true on success or false on failure.

Changelog

Version Description
8.0.0 dst_image and src_image expect GdImage instances now; previously, resources were expected.

Examples

Example #1 Merging two copies of the PHP.net logo with 75% transparency

<?php
// Create image instances
$dest = imagecreatefromgif('php.gif');
$src = imagecreatefromgif('php.gif');

// Copy and merge
imagecopymerge($dest, $src, 10, 10, 0, 0, 100, 47, 75);

// Output
header('Content-Type: image/gif');
imagegif($dest);
?>

© 1997–2025 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.imagecopymerge.php