(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
imagesettile — Set the tile image for filling
   imagesettile() sets the tile image to be
   used by all region filling functions (such as imagefill()
   and imagefilledpolygon()) when filling with the special
   color IMG_COLOR_TILED.
  
A tile is an image used to fill an area with a repeated pattern. Any GD image can be used as a tile, and by setting the transparent color index of the tile image with imagecolortransparent(), a tile allows certain parts of the underlying area to shine through can be created.
    You need not take special action when you are finished with a tile, but if you
    destroy the tile image (or let PHP destroy it), you must not use the IMG_COLOR_TILED
    color until you have set a new tile image!
   
imageA GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().
tileThe image object to be used as a tile.
   Returns true on success or false on failure.
  
| Version | Description | 
|---|---|
| 8.0.0 | imageandtileexpect
       GdImage instances now; previously, resources
       were expected. | 
Example #1 imagesettile() example
<?php
// Load an external image
$zend = imagecreatefromgif('./zend.gif');
// Create a 200x200 image
$im = imagecreatetruecolor(200, 200);
// Set the tile
imagesettile($im, $zend);
// Make the image repeat
imagefilledrectangle($im, 0, 0, 199, 199, IMG_COLOR_TILED);
// Output image to the browser
header('Content-Type: image/png');
imagepng($im);
imagedestroy($im);
imagedestroy($zend);
?>
The above example will output something similar to:
