php man page for imageflip

IMAGEFLIP(3)								 1							      IMAGEFLIP(3)

imageflip - Flips an image using a given mode

SYNOPSIS
       bool imageflip (resource  $image, int  $mode)

DESCRIPTION
	Flips the $image image using the given $mode.

PARAMETERS
	      o $
		image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).

	      o $mode
		- Flip mode, this can be one of the IMG_FLIP_* constants:

	      +--------------------+---------------------------------------------------+
	      |     Constant	   |						       |
	      | 		   |						       |
	      | 		   |			  Meaning		       |
	      | 		   |						       |
	      +--------------------+---------------------------------------------------+
	      | 		   |						       |
	      |IMG_FLIP_HORIZONTAL |						       |
	      | 		   |						       |
	      | 		   |	       Flips the image horizontally.	       |
	      | 		   |						       |
	      | 		   |						       |
	      | IMG_FLIP_VERTICAL  |						       |
	      | 		   |						       |
	      | 		   |		Flips the image vertically.	       |
	      | 		   |						       |
	      | 		   |						       |
	      |   IMG_FLIP_BOTH    |						       |
	      | 		   |						       |
	      | 		   |  Flips  the  image  both  horizontally and verti- |
	      | 		   | cally.					       |
	      | 		   |						       |
	      +--------------------+---------------------------------------------------+
RETURN VALUES
	Returns TRUE on success or FALSE on failure.

EXAMPLES
       Example #1

	      Flips an image vertically

	       This example uses the IMG_FLIP_VERTICAL constant.

	      <?php
	      // File
	      $filename = 'phplogo.png';

	      // Content type
	      header('Content-type: image/png');

	      // Load
	      $im = imagecreatefrompng($filename);

	      // Flip it vertically
	      imageflip($im, IMG_FLIP_VERTICAL);

	      // Output
	      imagejpeg($im);
	      imagedestroy($im);
	      ?>

	      The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example: Vertically flipped image

       Example #2

	      Flips the image horizontally

	       This example uses the IMG_FLIP_HORIZONTAL constant.

	      <?php
	      // File
	      $filename = 'phplogo.png';

	      // Content type
	      header('Content-type: image/png');

	      // Load
	      $im = imagecreatefrompng($filename);

	      // Flip it horizontally
	      imageflip($im, IMG_FLIP_HORIZONTAL);

	      // Output
	      imagejpeg($im);
	      imagedestroy($im);
	      ?>

	      The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example: Horizontally flipped image

NOTES
       Note

	      This function is only available if PHP is compiled with the bundled version of the GD library.

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