WordPress at a glance
function is not described

WP_Image_Editor_GD::stream() public WP 3.5.0

Returns stream of current image.

{} It's a method of the class: WP_Image_Editor_GD{}

No Hooks.

Return

true/false. True on success, false on failure.

Usage

$WP_Image_Editor_GD = new WP_Image_Editor_GD();
$WP_Image_Editor_GD->stream( $mime_type );
$mime_type(string)
The mime type of the image.
Default: null

Changelog

Since 3.5.0 Introduced.

Code of WP_Image_Editor_GD::stream() WP 5.5.1

<?php
public function stream( $mime_type = null ) {
	list( $filename, $extension, $mime_type ) = $this->get_output_format( null, $mime_type );

	switch ( $mime_type ) {
		case 'image/png':
			header( 'Content-Type: image/png' );
			return imagepng( $this->image );
		case 'image/gif':
			header( 'Content-Type: image/gif' );
			return imagegif( $this->image );
		default:
			header( 'Content-Type: image/jpeg' );
			return imagejpeg( $this->image, null, $this->get_quality() );
	}
}