PHP Manual: imagewebp

Description

function imagewebp(GdImage $image, resource|string|null $file = null, int $quality = -1): bool

Outputs or saves a WebP version of the given image.

Parameters

image: A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().
file: The path or an open stream resource (which is automatically closed after this function returns) to save the file to. If not set or null, the raw image stream will be output directly.
quality: quality ranges from 0 (worst quality, smaller file) to 100 (best quality, biggest file). If -1 is provided, the default value 80 is used.

Return Values

Returns true on success or false on failure.

Caution

However, if libgd fails to output the image, this function returns true.

Errors/Exceptions

Throws a ValueError if quality is invalid.

Changelog

Version	Description
8.4.0	Now throws a ValueError if `quality` is invalid.
8.0.0	`image` expects a GdImage instance now; previously, a valid `gd` resource was expected.

Examples

Example #1 Saving an WebP file

<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);

imagestring($im, 1, 5, 5,  'WebP with PHP', $text_color);

// Save the image
imagewebp($im, 'php.webp');
?>