Php/docs/function.imageflip

• PHP Manual
• GD and Image Functions
• Flips an image using a given mode

imageflip

(PHP 5 >= 5.5.0, PHP 7)

imageflip — Flips an image using a given mode

Description

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

Flips the image image using the given mode.

Parameters

image

An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

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 vertically.

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$filename = 'phplogo.png';// Content typeheader('Content-type: image/png');// Load$im = imagecreatefrompng($filename);// Flip it verticallyimageflip($im, IMG_FLIP_VERTICAL);// Outputimagejpeg($im);imagedestroy($im);?>

The above example will output something similar to:

Example #2 Flips the image horizontally

This example uses the IMG_FLIP_HORIZONTAL constant.

<?php// File$filename = 'phplogo.png';// Content typeheader('Content-type: image/png');// Load$im = imagecreatefrompng($filename);// Flip it horizontallyimageflip($im, IMG_FLIP_HORIZONTAL);// Outputimagejpeg($im);imagedestroy($im);?>

The above example will output something similar to: