(PHP 4, PHP 5, PHP 7)
imagejpeg — 브라우저나 파일로 출력 이미지
imagejpeg() creates a JPEG file from
the given image.
imageimagecreatetruecolor() 등의 이미지 생성 함수에서 반환한 이미지 자원.
to저장할 파일 경로. 지정하지 않거나 NULL일 경우에는, raw 이미지 스트림을 직접 출력합니다.
To skip this argument in order to provide the
quality parameter, use NULL.
quality
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).
성공 시 TRUE를, 실패 시 FALSE를 반환합니다.
Example #1 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);
// Free up memory
imagedestroy($im);
?>
위 예제의 출력 예시:
Example #2 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');
// Free up memory
imagedestroy($im);
?>
Example #3 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', $text_color);
// Set the content type header - in this case image/jpeg
header('Content-Type: image/jpeg');
// Skip the to parameter using NULL, then set the quality to 75%
imagejpeg($im, NULL, 75);
// Free up memory
imagedestroy($im);
?>
Note:
If you want to output Progressive JPEGs, you need to set interlacing on with imageinterlace().
| 버전 | 설명 |
|---|---|
| 5.4.0 |
Added support for passing a stream resource to
to.
|
| 5.4.0 |
Disallowed passing an empty string to to to
skip this argument.
|