1. 程式人生 > >PHP使用之上傳圖片到指定位置路徑儲存到資料庫的具體實現

PHP使用之上傳圖片到指定位置路徑儲存到資料庫的具體實現

<?php $uploaddir = "upfiles/";//設定檔案儲存目錄 注意包含/ $type=array("jpg","gif","bmp","jpeg","png");//設定允許上傳檔案的型別 $patch="upload/";//程式所在路徑 //獲取檔案字尾名函式 function fileext($filename) { return substr(strrchr($filename, '.'), 1); } //生成隨機檔名函式 function random($length) { $hash = 'CR-'; $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz'
; $max = strlen($chars) - 1; mt_srand((double)microtime() * 1000000); for($i = 0; $i < $length; $i++) { $hash .= $chars[mt_rand(0, $max)]; } return $hash; } $a=strtolower(fileext($_FILES['file']['name'])); //判斷檔案型別 if(!in_array(strtolower(fileext($_FILES['file']['name'])),$type)) { $text=implode(","
,$type); echo "您只能上傳以下型別檔案: ",$text,"<br>"; } //生成目標檔案的檔名 else{ $filename=explode(".",$_FILES['file']['name']); do { $filename[0]=random(10); //設定隨機數長度 $name=implode(".",$filename); //$name1=$name.".Mcncc"; $uploadfile=$uploaddir.$name; } while(file_exists($uploadfile)); if (move_uploaded_file($_FILES
['file']['tmp_name'],$uploadfile)) { if(is_uploaded_file($_FILES['file']['tmp_name'])) { echo "上傳失敗!"; } else {//輸出圖片預覽 echo "<center>您的檔案已經上傳完畢 上傳圖片預覽: </center><br><center><img src='$uploadfile'></center>"; echo "<br><center><a href='upload.htm'>繼續上傳</a></center>"; } } } ?>