How to create a .webp image in PHP

The options currently available are: gd (extension), imagick (extension), imagick (exec-call), gmagick (extension), gmagick (exec-call), cwebp (exec-call), gmagick (exec call) or calling a cloud service. I have created a library 'webp-convert' on github which tries all methods. The readme-file describes the pros and cons of each method. Its available here: https://github.com/rosell-dk/webp-convert.

For reasons unknown to me, the imagick/gmagick extensions produces no better quality than the original files. This is only a problem with the extensions, not the exec calls.

You can go right to Google and build the WebP libraries from source. Use this link to get the appropriate archive for your operating system:

https://developers.google.com/speed/webp/docs/compiling#building

Then you can use the following command within a php system() function to convert the images:

Syntax:

  cwebp [quality 
 qualitypercentage] [source 
 image] -o [destination]`

 cwebp -q 80 source.png -o 
 destination.webp

I would recommend reading the above link to get your libraries compiled, then go here to get more information about using the libraries.

Best of luck with the project!

webp images creating process:

you can use following php commands,to get the webp images

$imgName    =   "codingslover.jpg";
$webPName   =   "codingslover.webp";

Syntax:

 cwebp [quality qualitypercentage] [source image] -o [destination]

exec("cwebp -q 0 ".$imgName." -o ".$webPName." ");

Anthor Method:

exec("convert -colorspace RGB ".$imgName." ".$webPName . " ");

Exec : executes the given command in php

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