imageflip

(PHP 5 >= 5.5.0, PHP 7)

imageflip — Flips an image using a given mode

Descrição

bool imageflip ( resource $image , int $mode )

Flips the image image using the given mode.

Parâmetros

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.

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em caso de falha.

Exemplos

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);
?>

O exemplo acima irá imprimir algo similar à:

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);
?>

O exemplo acima irá imprimir algo similar à:

Output of example: Horizontally flipped image

Notas

Note: Esta função somente está disponível se o PHP estiver compilado com a versão embarcada da biblioteca GD.