(PHP 4, PHP 5)
imagejpeg — Output image to browser or file
imagejpeg() creates a JPEG file from the given image .
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
The path to save the file to. If not set or NULL, the raw image stream will be outputted directly.
To skip this argument in order to provide the quality parameter, use NULL.
quality is optional, and ranges from 0 (worst quality, smaller file) to 100 (best quality, biggest file). The default is the default IJG quality value (about 75).
Devuelve TRUE si todo se llevó a cabo correctamente, FALSE en caso de fallo.
Note: JPEG support is only available if PHP was compiled against GD-1.8 or later.
Note: If you want to output Progressive JPEGs, you need to set interlacing on with imageinterlace().