note 76208 deleted from function.move-uploaded-file by nlopess
| From: | nlopess@php.net | Date: | Fri, 13 Jul 2007 19:16:14 +0000 |
| Subject: | note 76208 deleted from function.move-uploaded-file by nlopess | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-128469@lists.php.net to get a copy of this message | ||
Note Submitter: binnyva at gmail dot com
----
Uploading a file using PHP is not a single step function. To make this easier, I have created a
function that will upload a file with just one function call. Just upload('image'); and
the file is uploaded! upload() is a function that makes uploading files very easy.
<?php
/**
* A function for easily uploading files. This function will automatically generate a new
* file name so that files are not overwritten.
* Arguments: $file_id- The name of the input field contianing the file.
* $folder - The folder to which the file should be uploaded to - it must be
writable. OPTIONAL
* $types - A list of comma(,) seperated extensions that can be uploaded. If it is
empty, anything goes OPTIONAL
* Returns : This is somewhat complicated - this function returns an array with two values...
* The first element is randomly generated filename to which the file was uploaded
to.
* The second element is the status - if the upload failed, it will be 'Error :
Cannot upload the file 'name.txt'.' or something like that
*/
function upload($file_id, $folder="", $types="") {
if(!$_FILES[$file_id]['name']) return array('','No file
specified');
$file_title = $_FILES[$file_id]['name'];
//Get file extension
$ext_arr = split("\.",basename($file_title));
$ext = strtolower($ext_arr[count($ext_arr)-1]); //Get the last extension
//Not really uniqe - but for all practical reasons, it is
$uniqer = substr(md5(uniqid(rand(),1)),0,5);
$file_name = $uniqer . '_' . $file_title;//Get Unique Name
$all_types = explode(",",strtolower($types));
if($types) {
if(in_array($ext,$all_types));
else {
$result = "'".$_FILES[$file_id]['name']."' is not a
valid file."; //Show error if any.
return array('',$result);
}
}
//Where the file must be uploaded to
if($folder) $folder .= '/';//Add a '/' at the end of the folder
$uploadfile = $folder . $file_name;
$result = '';
//Move the file from the stored location to the new location
if (!move_uploaded_file($_FILES[$file_id]['tmp_name'], $uploadfile)) {
$result = "Cannot upload the file
'".$_FILES[$file_id]['name']."'"; //Show error if any.
if(!file_exists($folder)) {
$result .= " : Folder don't exist.";
} elseif(!is_writable($folder)) {
$result .= " : Folder not writable.";
} elseif(!is_writable($uploadfile)) {
$result .= " : File not writable.";
}
$file_name = '';
} else {
if(!$_FILES[$file_id]['size']) { //Check if the file is made
@unlink($uploadfile);//Delete the Empty file
$file_name = '';
$result = "Empty file found - please use a valid file."; //Show the error
message
} else {
chmod($uploadfile,0777);//Make it universally writable.
}
}
return array($file_name,$result);
}
?>
Documentation : http://www.bin-co.com/php/scripts/upload_function/