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PHP receives binary data stream and converts it into pictures_PHP tutorial
- WBOYOriginal
- 2016-07-13 17:50:10894browse
Php code
1
2 /**
3 * Picture category
4 * @author Haroldphp@163.com
5 * @version 1.0
6 *
7*/
8 class image {
9 const ROOT_PATH = './';
10 const FAIL_WRITE_DATA = 'Fail to write data';
11 //No data flow
12 const NO_STREAM_DATA = 'The post data is empty';
13 //The image type is incorrect
14 const NOT_CORRECT_TYPE = 'Not a correct image type';
15 //Cannot create file
16 const CAN_NOT_CREATE_FILE = 'Can not create file';
17 //Upload picture name
18 public $image_name;
19 //Picture saving name
20 public $save_name;
21 //Picture saving path
22 public $save_dir;
23 //Directory + full path to image
24 public $save_fullpath;
25
26 /**
27 * Constructor
28 * @param String $save_name Save the picture name
29 * @param String $save_dir save path name
30*/
31 public function __construct($save_name, $save_dir) {
32 //set_error_handler ( $this->error_handler () );
33
34 //Set the name of the saved picture, if not set, a unique file name will be randomly generated
35 $this->save_name = $save_name ? $save_name : md5 ( mt_rand (), uniqid () );
36 //Set the path to save the picture, if not set, use the year/month/day format for directory storage
37 $this->save_dir = $save_dir ? self::ROOT_PATH .$save_dir : self::ROOT_PATH .date ( 'Y/m/d' );
38
39 //Create folder
40 @$this->create_dir ($this->save_dir);
41 //Set directory + full path of picture www.2cto.com
42 $this->save_fullpath = $this->save_dir . '/' . $this->save_name;
43 }
44 //Compatible with PHP4
45 public function image($save_name) {
46 $this->__construct ($save_name);
47 }
48
49 public function stream2Image() {
50 //Binary data stream
51 $data = file_get_contents ( 'php://input' ) ? file_get_contents ( 'php://input' ) : gzuncompress ( $GLOBALS ['HTTP_RAW_POST_DATA'] );
52 //If the data stream is not empty, save the operation
53 if (! empty ( $data )) {
54 //Create and write the data stream, and then save the file
55 if (@$fp = fopen ( $this->save_fullpath, 'w+' )) {
56 fwrite ( $fp, $data );
57 fclose ( $fp );
58 $baseurl = "http://" . $_SERVER ["SERVER_NAME"] . ":" . $_SERVER ["SERVER_PORT"] . dirname ( $_SERVER ["SCRIPT_NAME"] ) . '/' . $this->save_name;
59 if ( $this->getimageInfo ( $baseurl )) {
60 echo $baseurl;
61 } else {
62 echo ( self::NOT_CORRECT_TYPE );
63 }
64 } else {
65
66 }
67 } else {
68 //没有接收到数据流
69 echo ( self::NO_STREAM_DATA );
70 }
71 }
72 /**
73 * Create folder
74 * @param String $dirName Folder path name
75*/
76 public function create_dir($dirName, $recursive = 1,$mode=0777) {
77 ! is_dir ( $dirName ) && mkdir ( $dirName,$mode,$recursive );
78 }
79 /**
80 * Get image information and return the width, height, type, size, and image mine type of the image
81 * @param String $imageName Image name
82*/
83 public function getimageInfo($imageName = '') {
84 $imageInfo = getimagesize ( $imageName );
85 if ($imageInfo !== false) {
86 $imageType = strtolower ( substr ( image_type_to_extension ( $imageInfo [2] ), 1 ) );
87 $imageSize = filesize ( $imageInfo );
88 return $info = array ('width' => $imageInfo [0], 'height' => $imageInfo [1], 'type' => $imageType, 'size' => $imageSize, 'mine' => $imageInfo ['mine'] );
89 } else {
90 //不是合法的图片
91 return false;
92 }
93
94 }
95
96 /*private function error_handler($a, $b) {
97 echo $a, $b;
98 }*/
99
100 }