The ImagickDraw::comment() function is an inbuilt function in PHP which is used to add a comment to a vector output stream. The comment is appended at the end of the output stream.
Syntax:
bool ImagickDraw::comment( string $comment )
Parameters: This function accept a single parameter $comment which holds the comment.
Return Value: This function returns TRUE on success.
Exceptions: This function throws ImagickException on error.
Below given program illustrates the ImagickDraw::comment() function in PHP:
Program 1:
<?php //Create a new Imagick object $imagick = new Imagick();
// Create a image on imagick object $imagick ->newImage(800, 250, 'white' );
// Create a new ImagickDraw object $draw = new ImagickDraw();
// Add comment $draw ->comment( 'Hello ! This is my comment.' );
// Get the vector graphics as string $graphics = $draw ->getVectorGraphics();
// Get comment from vector graphics $comment = substr ( $graphics , 807);
echo $comment ;
?> |
Output:
Hello ! This is my comment.
Program 2:
<?php //Create a new Imagick object $imagick = new Imagick();
// Create a image on imagick object $imagick ->newImage(800, 250, 'white' );
// Create a new ImagickDraw object $draw = new ImagickDraw();
$string = 'This is my comment' ;
// Add comment $draw ->comment( $string );
// Get the vector graphics $graphics = $draw ->getVectorGraphics();
// Get comment from vector graphics $getComment = substr ( $graphics , 807, strlen ( $string ));
// Set the font size $draw ->setFontSize(50);
// Write on image $draw ->annotation(50, 100, $getComment );
// Render the draw commands $imagick ->drawImage( $draw );
// Show the output $imagick ->setImageFormat( 'png' );
header( "Content-Type: image/png" );
echo $imagick ->getImageBlob();
?> |
Output:
Reference: https://www.php.net/manual/en/imagickdraw.comment.php