php的getimagesize方法详解
getimagesize方法可以查看图片的详细信息,如下:
> print_r(getimagesize('mnjpg.jpg'));
Array
(
[0] => 2250 // 宽
[1] => 1500 // 高
[2] => 3 // 类型
[3] => width="2250" height="1500"
[bits] => 8
[mime] => image/png
)
图片类型说明
$imageTypeArray = array(
0 => 'UNKNOWN',
1 => 'GIF',
2 => 'JPEG',
3 => 'PNG',
4 => 'SWF',
5 => 'PSD',
6 => 'BMP',
7 => 'TIFF_II',
8 => 'TIFF_MM',
9 => 'JPC',
10 => 'JP2',
11 => 'JPX',
12 => 'JB2',
13 => 'SWC',
14 => 'IFF',
15 => 'WBMP',
16 => 'XBM',
17 => 'ICO',
18 => 'COUNT'
);
图片上传,以jpeg类型为例
$old_image = imagecreatefromjpeg($image_url);
$new_image = imagecreatetruecolor($width, $height);
imagecopy($new_image, $old_image, 0, 0, $x1, $y1, $width, $height);
ob_start();
imagejpeg($new_image);
$contents = ob_get_contents();
ob_end_clean();
imagedestroy($old_image);
imagedestroy($new_image);
// 新图片上传到图片服务器
$url = 'xxx/upload';
$client = Apf_Http_CurlClient::getInstance();
$ret = $client->doPost($url, array('file' => base64_encode($contents)), array(), array(), 1000);
$ret = json_decode($ret, true);