PHP | Gmagick labelimage() Function
The Gmagick::labelimage() function is an inbuilt function in PHP which is used to label to the image. A label is just a string attached to an image which can be extracted back later from the image. This label is not visible on the image itself but you can do so using annotate function.
Syntax:
mixed Gmagick::labelimage( string $label )
Parameters: This function accepts a single parameter $label which holds the label of an image.
Return Value: This function returns the Gmagick object with the label.
Exceptions: This function throws GmagickException on error.
Below given programs illustrate the Gmagick::labelimage() function in PHP:
Used Image:
Program 1:
<?php
$gmagick = new Gmagick( 'geeksforgeeks.png' );
$label = "Hello World" ;
$gmagick ->labelimage( $label );
$label = substr ( $gmagick , -28, strlen ( $label ) + 1);
echo $label ;
?>
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Output:
Hello World
Program 2:
<?php
$gmagick = new Gmagick( 'geeksforgeeks.png' );
$label = "This is my label" ;
$gmagick ->labelimage( $label );
$getlabel = substr ( $gmagick , -32, strlen ( $label ));
$draw = new GmagickDraw();
$draw ->setFillColor( 'white' );
$draw ->rectangle(0, 0, 800, 400);
$draw ->setFillColor( 'orange' );
$draw ->setfontsize(50);
$draw ->annotate(30, 100, $getlabel );
$gmagick ->drawImage( $draw );
header( "Content-Type: image/png" );
echo $gmagick ->getImageBlob();
?>
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Output:
Reference: https://www.php.net/manual/en/gmagick.labelimage.php
Last Updated :
23 Jan, 2020
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