imageflip

(PHP 5 >= 5.5.0, PHP 7)

Flips an image using a given mode

bool imageflip ( resource $image, int $mode )

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.

Returns:

Returns TRUE on success or FALSE on failure.

Notes:

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

Examples:

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:

Output of example: Vertically flipped image

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:

Output of example: Horizontally flipped image

Links:

http://php.net/manual/en/function.imageflip.php

doc_php

2025-01-10 15:47:30

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