(PHP 5 >= 5.5.0, PHP 7, PHP 8)
imageflip — Flips an image using a given mode
image
A GdImage object, 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. |
Version | Description |
---|---|
8.0.0 | image expects a GdImage instance now; previously, a valid gd resource was expected. |
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:
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: