PHP | GmagickDraw getfillopacity() Function

<?php 

// Create a new GmagickDraw object 
$draw = new GmagickDraw(); 
  
// Get the Fill Opacity 
$fillOpacity = $draw->getfillopacity(); 
echo $fillOpacity; 
?> 

<?php

// Create a new Gmagick object
$gmagick = new Gmagick('geeksforgeeks.png');

// Create a GmagickDraw object
$draw = new GmagickDraw();

// Set the color
$draw->setFillColor('#0E0E0E');

// Draw rectangle for background
$draw->rectangle(-10, -10, 800, 400);

// Set the fill color
$draw->setFillColor('yellow');

// Set the font size
$draw->setFontSize(20);

// Set the fill opacity
$draw->setfillopacity(1);

// Annotate a text
$draw->annotate(50, 30, 'The fill opacity here is '
    . $draw->getfillopacity());

// Set the fill opacity
$draw->setfillopacity(0.5);

// Annotate a text
$draw->annotate(50, 100, 'The fill opacity here is '
    . $draw->getfillopacity());

// Draw the image
$gmagick->drawImage($draw);

// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>