本文实例讲述了PHP实现上传文件并存进数据库的方法。分享给大家供大家参考。具体如下：
show_add.php文件如下：
<?php if(!isset($_REQUEST['id']) or $_REQUEST['id']=="") die("error: id none"); $id = $_REQUEST['id']; //定位记录,读出 $conn=mysql_connect("localhost","root","admin"); if(!$conn) die("error: mysql connect failed"); mysql_select_db("nokiapaymentplat",$conn); $sql = "select * from receive where id=$id"; $result = mysql_query($sql,$conn); if(!$result) die("error: mysql query"); $num=mysql_num_rows($result); if($num<1) die("error: no this recorder"); $data = mysql_result($result,0,"file_data"); $type = mysql_result($result,0,"file_type"); $name = mysql_result($result,0,"file_name"); mysql_close($conn); //先输出相应的文件头,并且恢复原来的文件名 header("Content-type:$type"); header("Content-Disposition: attachment; filename=$name"); echo $data; ?>
show_info.php文件如下：
<?php if(!isset($_REQUEST['id']) or $_REQUEST['id']=="") die("error: id none"); $id = $_REQUEST['id']; //定位记录,读出 $conn=mysql_connect("localhost","root","admin"); if(!$conn) die("error: mysql connect failed"); mysql_select_db("nokiapaymentplat",$conn); $sql = "select file_name ,file_size from receive where id=$id"; $result = mysql_query($sql,$conn); if(!$result) die(" error: mysql query"); //如果没有指定的记录，则报错 $num=mysql_num_rows($result); if($num<1) die("error: no this recorder"); //下面两句程序也可以这么写 //$row=mysql_fetch_object($result); //$name=$row->name; //$size=$row->size; $name = mysql_result($result,0,"file_name"); $size = mysql_result($result,0,"file_size"); mysql_close($conn); echo "<hr>上传的文件的信息："; echo "<br>The file's name - $name"; echo "<br>The file's size - $size"; echo "<br><a href=show_add.php?id=$id>附件</a>"; ?>
submit.php文件如下：
<?php if(is_uploaded_file($_FILES['myfile']['tmp_name'])) { //有了上传文件了 $myfile=$_FILES["myfile"]; //设置超时限制时间,缺省时间为 30秒,设置为0时为不限时 $time_limit=60; set_time_limit($time_limit); // //把文件内容读到字符串中 $fp=fopen($myfile['tmp_name'], "rb"); if(!$fp) die("file open error"); $file_data = addslashes(fread($fp, filesize($myfile['tmp_name']))); fclose($fp); unlink($myfile['tmp_name']); //文件格式,名字,大小 $file_type=$myfile["type"]; $file_name=$myfile["name"]; $file_size=$myfile["size"]; die($file_type); //连接数据库,把文件存到数据库中 $conn=mysql_connect("localhost","root","admin"); if(!$conn) die("error : mysql connect failed"); mysql_select_db("nokiapaymentplat",$conn); $sql="insert into receive (file_data,file_type,file_name,file_size) values ('$file_data','$file_type','$file_name',$file_size)"; $result=mysql_query($sql,$conn); //下面这句取出了刚才的insert语句的id $id=mysql_insert_id(); mysql_close($conn); set_time_limit(30); //恢复缺省超时设置 echo "上传成功--- "; echo "<a href='show_info.php?id=$id'>显示上传文件信息</a>"; } else { echo "你没有上传任何文件"; } ?>
upload.php文件如下：
<html> <head> <title>文件上传表单</title> </head> <body> <table> <form enctype='multipart/form-data' name='myform' action='submit.php' method='post'> <INPUT TYPE = "hidden" NAME = "MAX_FILE_SIZE" VALUE ="1000000"> <tr><td>选择上传文件</td><td> <input name='myfile' type='file'></td></tr> <tr><td colspan='2'><input name='submit' value='上传' type='submit'></td></tr> </table> </body> </html>
希望本文所述对大家的PHP程序设计有所帮助。