PHP | Gmagick labelimage() Function

<?php

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

$label = "Hello World";

// Label the image
$gmagick->labelimage($label);

// Get the label from image
$label = substr($gmagick, -28, strlen($label) + 1);
echo $label;
?>

<?php

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

$label = "This is my label";

// Label the image
$gmagick->labelimage($label);

// Get the label from image
$getlabel = substr($gmagick, -32, strlen($label));
 
// Create a GmagickDraw object
$draw = new GmagickDraw();
 
// Set the color
$draw->setFillColor('white');
 
// Function to draw rectangle
$draw->rectangle(0, 0, 800, 400);
 
// Set the fill color
$draw->setFillColor('orange');
 
// Set the font size
$draw->setfontsize(50);
 
// Annotate a text
$draw->annotate(30, 100, $getlabel);
 
// Use of drawimage function
$gmagick->drawImage($draw);
 
// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>