(PHP 4, PHP 5, PHP 7)
imagejpeg — 브라우저나 파일로 출력 이미지
imagejpeg() creates a JPEG file from
the given image
.
image
imagecreatetruecolor() 등의 이미지 생성 함수에서 반환한 이미지 자원.
to
저장할 파일 경로. 지정하지 않거나 NULL
일 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 TRUE
를, 실패 시 FALSE
를 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.
|