PHP | imagecreate() Function
The imagecreate() function is an inbuilt function in PHP which is used to create a new image. This function returns the blank image of given size. In general imagecreatetruecolor() function is used instead of imagecreate() function because imagecreatetruecolor() function creates high quality images.
Syntax:
imagecreate( $width, $height )
Parameters: This function accepts two parameters as mentioned above and described below:
- $width: It is mandatory parameter which is used to specify the image width.
- $height: It is mandatory parameter which is used to specify the image height.
Return Value: This function returns an image resource identifier on success, FALSE on errors.
Below programs illustrate the imagecreate() function in PHP:
Program 1:
<?php
$image = imagecreate(500, 300);
$background_color = imagecolorallocate( $image , 0, 153, 0);
$text_color = imagecolorallocate( $image , 255, 255, 255);
imagestring( $image , 5, 180, 100, "GeeksforGeeks" , $text_color );
imagestring( $image , 3, 160, 120, "A computer science portal" , $text_color );
header( "Content-Type: image/png" );
imagepng( $image );
imagedestroy( $image );
?>
|
Output:
Program 2:
<?php
$image = imagecreate(500, 300);
$values = array (
50, 50,
50, 250,
250, 50,
250, 250
);
$background_color = imagecolorallocate( $image , 0, 153, 0);
imagefill( $image , 0, 0, $background_color );
$image_color = imagecolorallocate( $image , 255, 255, 255);
imagepolygon( $image , $values , 4, $image_color );
header( 'Content-type: image/png' );
imagepng( $image );
?>
|
Output:
Related Articles:
Reference: http://php.net/manual/en/function.imagecreate.php
Last Updated :
23 Aug, 2019
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