I want to edit images using ImageMagick and PHP on my website.
I'm on Linux (Raspbian OS) and have PHP and ImageMagick installed.
I'm trying to do something similar to: `convert test.png test.webp` using PHP. All work in the Terminal.

What I've tried:

putenv("PATH=/usr/local/bin:/usr/bin:/bin");
Full command path "/usr/bin/convert test.png test.webp" (Work in Terminal)
All of the PHP CMD commands including: exec() shell_exec() system() passthru()
(All of the output of those were empty, but simple commands like echo $PWD worked)
Images Full Path "convert /home/pi/www/test.png /home/pi/www/test.webp" (And all of the above variations)

Any help in hugely appreciated!

CodePudding user response：

Use 2>&1 in php shell_exec command and try this code;

$file = "/home/pi/www/test.png";
$dest = "/home/pi/www/test.webp";

$file_extension = strtolower(pathinfo($file, PATHINFO_EXTENSION));
if(extension_loaded("cwebp") || extension_loaded('gif2webp')) {
  if($file_extension=="png" or $file_extension=="jpg" or $file_extension=="jpeg"){
    shell_exec("cwebp -q 80 ".escapeshellarg($file)." -o ".escapeshellarg($dest) . " 2>&1");
  }
  if($file_extension=="gif"){
    shell_exec("gif2webp -q 80 ".escapeshellarg($file)." -o ".escapeshellarg($dest) . " 2>&1");
  }
} else if(extension_loaded("gmagick") || extension_loaded('imagick')) {
  if($file_extension=="png" or $file_extension=="jpg" or $file_extension=="jpeg" or $file_extension=="gif"){
    shell_exec("convert ".escapeshellarg($file)." -quality 80 -define webp:lossless=true ".escapeshellarg($dest) . " 2>&1");
  }
} else {
  die("Does not have any webp library!");
}

I don't know your version of Imagick, some arguments may vary by version, but it might give some idea for your code.

CodePudding user response：

You have also an imagick extension in PHP: https://www.php.net/manual/fr/book.imagick.php