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我想在上传图像时使用代码将其裁剪为 100px * 100px 3 种格式gif,png,jpeg

我希望图像仅显示在页面上。无需存储。

4

2 回答 2

3
<?php

$filename= "test.jpg";
list($w, $h, $type, $attr) = getimagesize($filename);
$src_im = imagecreatefromjpeg($filename);

$src_x = '0';   
$src_y = '0';   
$src_w = '100';
$src_h = '100'; 
$dst_x = '0';  
$dst_y = '0';  

$dst_im = imagecreatetruecolor($src_w, $src_h);
$white = imagecolorallocate($dst_im, 255, 255, 255);
imagefill($dst_im, 0, 0, $white);

imagecopy($dst_im, $src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h);

header("Content-type: image/png");
imagepng($dst_im);
imagedestroy($dst_im);

?>
于 2013-05-14T10:58:40.043 回答
0

PHP 代码

<?php

$filename= "test.jpg";
list($w, $h, $type, $attr) = getimagesize($filename);
$src_im = imagecreatefromjpeg($filename);

$src_x = '0';   // begin x
$src_y = '0';   // begin y
$src_w = '100'; // width
$src_h = '100'; // height
$dst_x = '0';   // destination x
$dst_y = '0';   // destination y

$dst_im = imagecreatetruecolor($src_w, $src_h);
$white = imagecolorallocate($dst_im, 255, 255, 255);
imagefill($dst_im, 0, 0, $white);

imagecopy($dst_im, $src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h);

header("Content-type: image/png");
imagepng($dst_im);
imagegif($dst_im);
imagejpeg($dst_im);

imagedestroy($dst_im);

?>
于 2013-05-14T10:56:03.530 回答