Php/docs/function.imagegd

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imagegd

(PHP 4 >= 4.0.7, PHP 5, PHP 7)

imagegdOutput GD image to browser or file


Description

imagegd ( resource $image [, mixed $to = NULL ] ) : bool

Outputs a GD image to the given to.


Parameters

image
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
to
The path or an open stream resource (which is automatically being closed after this function returns) to save the file to. If not set or NULL, the raw image stream will be outputted directly.


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
7.2.0 imagegd() now allows to output truecolor images.

Formerly, these have been implicitly converted to palette.


Examples

Example #1 Outputting a GD 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", $text_color);// Output the imageimagegd($im);// Free up memoryimagedestroy($im);?>

Example #2 Saving a GD 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", $text_color);// Save the gd image// The file format for GD images is .gd, see http://www.libgd.org/GdFileFormatsimagegd($im, 'simple.gd');// Free up memoryimagedestroy($im);?>

Notes

Note:

The GD format is commonly used to allow fast loading of parts of images. Note that the GD format is only usable in GD-compatible applications.

Warning The GD and GD2 image formats are proprietary image formats of libgd. They have to be regarded obsolete, and should only be used for development and testing purposes.


See Also