php面向对象文件上传

文件上传类 Upload.class.php
  1. <?php
  2. class Upload {
  3. 	private $path;
  4. 	private $n;
  5. 	private $ext;
  6. 	private $length;
  7. 	public function __construct($path = './', $n = 3, $ext = ['jpg','gif','png','rar','ppt','doc'], $length = 20971520) {
  8. 		$this->path = $path;
  9. 		$this->n = $n;
  10. 		$this->ext = $ext;
  11. 		$this->length = $length;
  12. 	}
  13. 	public function up() {
  14. 		$ufs = $_FILES;
  15. 		if (count ( $ufs ) <= 0) {
  16. 			return;
  17. 		} else {
  18. 			if (! file_exists ( $this->path )) {
  19. 				mkdir ( $this->path, 0777, true );
  20. 			}
  21. 			$uuu = [ ];
  22. 			
  23. 			foreach ( $ufs as $k => $v ) {
  24. 				if (is_array ( $v ['name'] )) {
  25. 					$ns = $v ['name'];
  26. 					$fs = $v ['tmp_name'];
  27. 					$ss = $v ['size'];
  28. 					foreach ( $fs as $kk => $vv ) {
  29. 						if ($ss [$kk] == 0) {
  30. 							continue;
  31. 						}
  32. 						$uf = iconv ( 'utf-8', 'gbk', $ns [$kk] );
  33. 						$et = strtolower ( substr ( $uf, strrpos ( $uf, '.' ) + 1 ) );
  34. 						
  35. 						if ($this->n == 1) {
  36. 							$uf = uniqid () . '.' . $et;
  37. 						} else if ($this->n == 2) {
  38. 							$uf = $this->uuid () . '.' . $et;
  39. 						} else if ($this->n == 3) {
  40. 							$nnn = substr ( $uf, 0, strrpos ( $uf, '.' ) );
  41. 							$t = 0;
  42. 							while ( file_exists ( $this->path . $uf ) ) {
  43. 								$uf = $nnn . (++ $t) . '.' . $et;
  44. 							}
  45. 						}
  46. 						if (in_array ( $et, $this->ext ) && $ss [$kk] <= $this->length) {
  47. 							move_uploaded_file ( $vv, $this->path . $uf );
  48. 							$uuu [] = $uf;
  49. 						}
  50. 					}
  51. 				} else {
  52. 					if ($v ['size'] == 0) {
  53. 						continue;
  54. 					}
  55. 					$uf = iconv ( 'utf-8', 'gbk', $v ['name'] );
  56. 					$et = strtolower ( substr ( $uf, strrpos ( $uf, '.' ) + 1 ) );
  57. 					if ($this->n == 1) {
  58. 						$uf = uniqid () . '.' . $et;
  59. 					} else if ($this->n == 2) {
  60. 						$uf = $this->uuid () . '.' . $et;
  61. 					} else if ($this->n == 3) {
  62. 						$nnn = substr ( $uf, 0, strrpos ( $uf, '.' ) );
  63. 						$t = 0;
  64. 						while ( file_exists ( $this->path . $uf ) ) {
  65. 							$uf = $nnn . (++ $t) . '.' . $et;
  66. 						}
  67. 					}
  68. 					if (in_array ( $et, $this->ext ) && $v ['size'] <= $this->length) {
  69. 						move_uploaded_file ( $v ['tmp_name'], $this->path . $uf );
  70. 						$uuu [] = $uf;
  71. 					}
  72. 				}
  73. 			}
  74. 			return $uuu;
  75. 		}
  76. 	}
  77. 	public function uuid($namespace = '') {
  78. 		$guid = $namespace;
  79. 		$uid = uniqid ( "", true );
  80. 		$data = $namespace;
  81. 		$data .= $_SERVER ['REQUEST_TIME'];
  82. 		$data .= $_SERVER ['HTTP_USER_AGENT'];
  83. 		$data .= $_SERVER ['REMOTE_ADDR'];
  84. 		$data .= $_SERVER ['REMOTE_PORT'];
  85. 		$hash = strtoupper ( hash ( 'ripemd128', $uid . $guid . md5 ( $data ) ) );
  86. 		$guid = substr ( $hash, 0, 8 ) . '-' . substr ( $hash, 8, 4 ) . '-' . substr ( $hash, 12, 4 ) . '-' . substr ( $hash, 16, 4 ) . '-' . substr ( $hash, 20, 12 );
  87. 		return $guid;
  88. 	}
  89. 	public function __destruct() {
  90. 		
  91. 	}
  92. }
上传单个文件或者多个文件的html代码  uup.html
  1. <!DOCTYPE html>
  2. <html>
  3. <head>
  4. <meta charset="UTF-8">
  5. <title>Insert title here</title>
  6. </head>
  7. <body>
  8. <form action="up.php" method="post" enctype="multipart/form-data">
  9. 文件上传：<input type="file" name="f[]" multiple><br><!-- 上传多个文件 -->
  10. <!-- 上传文件:<input type="file" name="f" ><br> 上传单个文件 -->
  11. <input type="submit" value="提交">
  12. </form>
  13. </body>
  14. </html>
引入类和实例化类的代码up.php
  1. <?php
  2. include 'inc/Upload.class.php';
  3. $u=new Upload('abc/',1);
  4. $uf=$u->up();
  5. echo '<pre>';
  6. print_r($uf);






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原文地址：https://www.cnblogs.com/lsr111/p/4594291.html