GD and Image Functions
PHP Manual

imagewbmp

Output image to browser or file

Description

bool imagewbmp(GdImage $image, resourcestringnull $file = null, intnull $foreground_color = null)

imagewbmp outputs or save a WBMP version of the given image.

Parameters

image

A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.

file

The path or an open stream resource (which is automatically closed after this function returns) to save the file to. If not set or null, the raw image stream will be output directly.

foreground_color

You can set the foreground color with this parameter by setting an identifier obtained from imagecolorallocate. The default foreground color is black.

Return Values

Returns true on success or false on failure.

Caution

However, if libgd fails to output the image, this function returns true.

Changelog

Version Description
8.0.0 image expects a GdImage instance now; previously, a valid gd resource was expected.
8.0.0 foreground_color is nullable now.

Examples

Example #1 Outputting a WBMP image

<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

// Set the content type header - in this case image/vnd.wap.wbmp
// Hint: see image_type_to_mime_type() for content-types
header('Content-Type: image/vnd.wap.wbmp');

// Output the image
imagewbmp($im);

// Free up memory
imagedestroy($im);
?>

Example #2 Saving the WBMP image

<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

// Save the image
imagewbmp($im, 'simpletext.wbmp');

// Free up memory
imagedestroy($im);
?>

Example #3 Outputting the image with a different foreground

<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

// Set the content type header - in this case image/vnd.wap.wbmp
// Hint: see image_type_to_mime_type() for content-types
header('Content-Type: image/vnd.wap.wbmp');

// Set a replacement foreground color
$foreground_color = imagecolorallocate($im, 255, 0, 0);

imagewbmp($im, NULL, $foreground_color);

// Free up memory
imagedestroy($im);
?>

See Also

  • image2wbmp
  • imagepng
  • imagegif
  • imagejpeg
  • imagetypes