PHP file upload Script :: online picture upload

upload.php

<form ACTION='uploadck.php' METHOD=POST  enctype='multipart/form-data' >
Upload this file: <input type=file name='file_up'>
<input type=submit value='Upload Image'></FORM>

This html code will display a file selection button and one upload button . The form tag is bit different than the normal form tag used ( see the encrypte = enctype='multipart/form-data'). Here the attribute METHOD=POST

Upload this file:

Above code will allow uer to select the file to upload through file browser and on click of the Submit button all details are submitted to uploadck.php file.

uploadck.php

(Download all the source code at the end of this page.)

• Check the file if it is allowed for upload or not. We can check for file size, file extension, file name etc.
• Copy the file to server.
• Place the file in required directory and then give necessary file permission.

Before starting we must add file permission to the directory where we plan to store the files after uploading it. Let us give the directory name upload and give write permission to it. If it is a Window server nothing is required and by default window gives all permissions. For Linux and Unix we have to give write (Chmod) permission to allow uploaded files to store.

If you are uploading large files then read about maximum file execution time allowed and its adjustments.

Note that we used 'file_up' as name attribute in above html code while showing the file upload form. We can display all elements of the global array $_FILES['file_up'] inside uploadck.php file.

foreach($_FILES['file_up'] as $key => $val) {
echo "$key -> $val <br>";
}

$_FILES['file_up'];

So to get the file size we have to use

$_FILES['file_up']['size']

Same way all other information can be collected from the global variable.

echo "File Name:".$_FILES['file_up']['name'];// Name of the uploaded file
echo "<br>File Size:".$_FILES['file_up']['size']; // file size in bytes 
echo "<br>File Type:".$_FILES['file_up']['type']; // The mime type of the file
echo "<br>File tmp_name:".$_FILES['file_up']['tmp_name']; //The temporary filename
echo "<br>File error:".$_FILES['file_up']['error']; // error code if any 

Maximum allowed file upload size.

In PHP installation ( php.ini file )there is a file size limit for uploading files. You can check your phpinfo() to know about this upper limit. You can also run this code to read other parameters affecting your file upload.

<?Php
echo "Maximum allowed file size: ".ini_get('upload_max_filesize');
echo "<br>";
echo "Maximum input time : ".ini_get('max_input_time');
echo "<br>";
echo "Maximum execution time : ".ini_get('max_execution_time');
echo "<br>";
echo "Maximum Post size : ".ini_get('post_max_size');
?>

From this you can add a check in the script and display message to the user saying about the error. Here is the code for that.

if ($_FILES[file_up][size]>250000){
$msg=$msg."Your uploaded file size is more than 250KB so please reduce the file size and then upload.<BR>";
$file_upload="false";
}

Here is the full code to handle file upload.

upload.php : To show the HTML form with file upload and submit buttons.

<form action='uploadck.php' method=post  enctype='multipart/form-data' >
Upload this file: <input type=file name='file_up'>
<input type=submit value='Upload Image'></FORM>

uploadck.php : To process the uploaded data after the above form submit.
Full code : Copy to clipboard

<?Php
// Show details of the uploaded file // 
echo "File Name:".$_FILES['file_up']['name'];// Name of the uploaded file
echo "<br>File Size:".$_FILES['file_up']['size']; // file size in bytes 
echo "<br>File Type:".$_FILES['file_up']['type']; // The mime type of the file
echo "<br>File tmp_name:".$_FILES['file_up']['tmp_name']; //The temporary filename
echo "<br>File error:".$_FILES['file_up']['error']; // error code if any 

// Use loop to show details of the uploaded file // 
echo "<br><br>";
foreach($_FILES['file_up'] as $key => $val) {
echo "$key -> $val <br>";
}
echo "<br>---End of uploaded file details---<br><br>";

$file_upload_flag="true"; // Flag to check conditions
$msg=''; // Error message if any can be stored 
$file_up_size=$_FILES['file_up']['size']; // size of uploaded file


if ($_FILES['file_up']['size']>250000){
$msg=$msg."Your uploaded file size is more than 250KB ";
$msg.=" so please reduce the file size and then upload.<BR>";
$file_upload_flag="false";
}

// allow only jpeg or gif files, remove this if not required //
if (!($_FILES['file_up']['type'] =="image/jpeg" OR $_FILES['file_up']['type'] =="image/gif"))
{@$msg=$msg."Your uploaded file must be of JPG or GIF. ";
$msg.="Other file types are not allowed<BR>";
$file_upload_flag="false";}

$file_name=$_FILES['file_up']['name'];
$add="upload/$file_name"; // the path with the file name where the file will be stored

if($file_upload_flag=="true"){ // checking the Flag value 

if(move_uploaded_file ($_FILES['file_up']['tmp_name'], $add)){
// do your coding here to give a thanks message or any other thing.
$msg="File successfully uploaded";
}else{
echo "Failed to upload file Contact Site admin to fix the problem";
}
}else{
$msg .= " Failed to upload file ";
}
echo " $msg <br><br> <a href=upload.php>Return to File upload </a>";
?>

Upload Multiple file using single form → Thumbnail Image from uploaded picture → Upload and create a profile picture of a member →

Download Zip File of plus2_upload_v1

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