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imagejpeg

imagejpeg

gd.image.output

bool **imagejpeg** GdImage $image  $file int $quality

creates a  file from

the given . imagejpeg``image

filegd.image.path

quality is optional, and ranges from 0 (worst quality, smaller file) to 100 (best quality, biggest file). The default () uses the default IJG quality value (about 75). quality``-1

return.success

Throws a if is invalid. ValueError``quality

Voorbeeld: Outputting a JPEG image to the browser

<?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/jpeg
header('Content-Type: image/jpeg');

// Output the image
imagejpeg($im);
?>

Voorbeeld: Saving a JPEG image to a file

<?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 as 'simpletext.jpg'
imagejpeg($im, 'simpletext.jpg');
?>

Voorbeeld: Outputting the image at 75% quality to the browser

<?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/jpeg
header('Content-Type: image/jpeg');

// Skip the file parameter using NULL, then set the quality to 75%
imagejpeg($im, NULL, 75);
?>

Opmerking: > If you want to output Progressive JPEGs, you need to set interlacing on with . imageinterlace

imagepng``imagegif``imagewbmp``imageinterlace``imagetypes

Vorige ← imageistruecolor Volgende imagelayereffect →

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