PHP上传图片到数据库，并进行显示
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PHP上传图片到数据库，并进行显示
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1、創(chuàng)建數(shù)據(jù)表
CREATE TABLE ccs_image (id int(4) unsigned NOT NULL auto_increment,description varchar(250) default NULL,bin_data longblob,filename varchar(50) default NULL,filesize varchar(50) default NULL,filetype varchar(50) default NULL,PRIMARY KEY (id) )engine=myisam DEFAULT charset=utf8?
2、用于上傳圖片到服務(wù)器的頁面 upimage.html
<!doctype html> <html lang="en"> <head><meta charset="UTF-8"><meta name="viewport"content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"><meta http-equiv="X-UA-Compatible" content="ie=edge"><style type="text/css">*{margin: 1%}</style><title>Document</title> </head> <body> <form method="post" action="upimage.php" enctype="multipart/form-data">描述:<input type="text" name="form_description" size="40"><input type="hidden" name="MAX_FILE_SIZE" value="1000000"> <br>上傳文件到數(shù)據(jù)庫:<input type="file" name="form_data" size="40"><br><input type="submit" name="submit" value="submit"> </form> </body> </html>?
3、處理圖片上傳的php ?upimage.php
<?php if (isset($_POST['submit'])) {$form_description = $_POST['form_description'];$form_data_name = $_FILES['form_data']['name'];$form_data_size = $_FILES['form_data']['size'];$form_data_type = $_FILES['form_data']['type'];$form_data = $_FILES['form_data']['tmp_name'];$dsn = 'mysql:dbname=test;host=localhost';$pdo = new PDO($dsn, 'root', 'root');$data = addslashes(fread(fopen($form_data, "r"), filesize($form_data)));//echo "mysqlPicture=".$data;$result = $pdo->query("INSERT INTO ccs_image (description,bin_data,filename,filesize,filetype)VALUES ('$form_description','$data','$form_data_name','$form_data_size','$form_data_type')");if ($result) {echo "圖片已存儲到數(shù)據(jù)庫";} else {echo "請求失敗,請重試";?
注:圖片是以二進(jìn)制blob形式存進(jìn)數(shù)據(jù)庫的,像這樣
?
4、顯示圖片的php getimage.php
<?php$id =2;// $_GET['id']; 為簡潔,直接將id寫上了,正常應(yīng)該是通過用戶填入的id獲取的$dsn ='mysql:dbname=test;host=localhost';$pdo = new PDO($dsn,'root','root');$query = "select bin_data,filetype from ccs_image where id=2";$result = $pdo->query($query);$result = $result->fetchAll(2); // var_dump($result);$data = $result[0]['bin_data'];$type = $result[0]['filetype'];Header( "Content-type: $type");echo $data;?
5、到瀏覽器查看已經(jīng)上傳的圖片,看是否可以顯示
是沒有問題的,證明圖片已經(jīng)以二進(jìn)制的形式存儲到數(shù)據(jù)庫了
總結(jié)
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