The example in this article describes how PHP implements uploading files and storing them in the database. Share it with everyone for your reference. The details are as follows:
show_add.php file is as follows:
<?php
if(!isset($_REQUEST['id']) or $_REQUEST['id ']=="") die("error: id none");
$id = $_REQUEST['id'];
//Locate the record, read out
$conn=mysql_connect("localhost","root","admin");
if(!$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($conn);
//Output the corresponding file header first, And restore the original file name
header("Content-type:$type");
header("Content-Disposition: attachment; filename=$name");
echo $data;
?>
show_info.php file is as follows:
<?php
if (!isset($_REQUEST['id']) or $_REQUEST['id']=="") die("error: id none");
$id = $_REQUEST['id' ];
//Locate the record, read out
$conn=mysql_connect("localhost","root","admin");
if(!$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");
//If If there is no specified record, an error will be reported
$num=mysql_num_rows($result);
if($num<1) die("error: no this recorder");
//The following two sentences of program can also be written like this
//$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>Uploaded file information:";
echo "<br>The file's name - $name";
echo "< ;br>The file's size - $size";
echo "<br><a href=show_add.php?id=$id>Attachment</a>";
?>
submit.php file is as follows:
<?php
if(is_uploaded_file($_FILES['myfile'][ 'tmp_name'])) {
//Now you have the uploaded file
$myfile=$_FILES["myfile"];
//Set the timeout limit, The default time is 30 seconds. When set to 0, there is no time limit.
$time_limit=60;
set_time_limit($time_limit); //
Read into the string
$fp=fopen($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']);
//File format, name, size
$file_type=$myfile["type"];
$file_name=$myfile ["name"];
$file_size=$myfile["size"];
die($file_type);
//Connect to the database and save the file to In the database
$conn=mysql_connect("localhost","root","admin");
if(!$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);
//The following sentence takes out the id of the insert statement just now
$id=mysql_insert_id();
mysql_close($conn);
set_time_limit(30); / /Restore the default timeout setting
echo "Upload successful--- ";
echo "<a href='show_info.php?id=$id'>Display uploaded file information </a>";
}
else {
echo "You did not upload any files";
}
?>
upload.php file is as follows:
<html>
<head>
<title> ;File upload form</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>Select upload file</td><td>
<input name='myfile' type ='file'></td></tr>
<tr><td colspan='2'><input name='submit' value='upload' type ='submit'></td></tr>
</table>
</body>
</html>
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When I see this bunch of code, I really don’t want to write it and read it