uploading files using php

uploading files using php uplaod .php using upload php we will upload files into upload folder <?php ist it checks the file is submitted, if submtted, create the variable name and assign the file name which is trying to upload, asssign the directory to newname, using if and else - if file is uploaded, using move_uploaded_ifle- move the file from temp location to original location, after succesfully uploaded, it shows uploaded, otherwise plese select a file if(isset($_FILES['userfile']['name'])){ not post, userfile is a name value, whenerver file is uploaded $name = $_FILES['userfile']['name']; mutlidimensional array, and it stores the file informations, if we echo this echo $names; - it prints the file u selected and submit, using this get the file name $tmp_name = $_FILES['userfile']['tmp_name']; $location = 'upload/'; directory, we created the directory in manual $new_name = $location.$name; where we store - upload/orange.jpg(which file is uploaded) if(!empty($name)){ if we select the file, it have to do one work if (move_uploaded_file($tmp_name, $new_name)){ uploaded file stores from temp folder to new name echo 'uploaded !'; } } else ( echo 'please select  a file'; } ?> <form action="upload.php" method="POST" enctype ="multipart/form-data"> <input type ="file" name ="userfile"> to upload we need enctype <input type="submit" value="upload"> </form> echo $name = $_FILES['userfile']['size']; it prints the size of the file echo $type = $_FILES['userfile']['type']; what Is the type file means it is jpeg or png $tmp_file = $_FILES['userfile']['tmp_name']; to upload the file we need some temporary locations, whenever u upload, it sends to temporary location, from that temporary, we can move to required location bytes
str_replace() - Replace Text Within a String
The PHP str_replace() function replaces some characters with some other characters in a string.
<?php
echo str_replace("world", "Dolly", "Hello world!"); // outputs Hello Dolly!
?>
how to find the base name
<?php $path = "/testweb/home.php"; //Show filenameecho basename($path) ."<br/>"; //Show filename, but cut off file extension for ".php" filesecho basename($path,".php"); ?>
ouytput is home.php home
The first parameter in the HTTP context is either inline (default value, indicating it can be displayed inside the Web page, or as the Web page) or attachment (indicating it should be downloaded; most browsers presenting a 'Save as' dialog, prefilled with the value of the filename parameters if present). Content-Disposition: inline Content-Disposition: attachment Content-Disposition: attachment; filename="filename.jpg"
how to write the code to download the file <?php $f="resume.doc"; $file = ("myfolder/$f"); $filetype=filetype($file); $filename=basename($file); header ("Content-Type: ".$filetype); header ("Content-Length: ".filesize($file)); header ("Content-Disposition: attachment; filename=".$filename); readfile($file); ?> Suppose You have a directory inside with collection of multiple related Files . Display all stored files using opendir( ) and readdir( ) function. Download those particular file on w <?php        $f="resume.doc";    load teh file name to varaible        $file = ("myfolder/$f"); load the oath name to a variable        $filetype=filetype($file); find the file type        $filename=basename($file); get the path name        header ("Content-Type: ".$filetype); tells to browser it is which file type        header ("Content-Length: ".filesize($file)); tells to browsetr whats the file size        header ("Content-Disposition: attachment; filename=".$filename); tells to browser it is downloadable or display with in a web page        readfile($file);   ?>
PHP Download File Example: Text File 1.    <?php   2.    $file_url = 'http://www.javatpoint.com/f.txt';   3.    header('Content-Type: application/octet-stream');   4.    header("Content-Transfer-Encoding: utf-8");    5.    header("Content-disposition: attachment; filename=\"" . basename($file_url) . "\"");    6.    readfile($file_url);   7.    ?>   PHP Download File Example: Binary File 1.    <?php   2.    $file_url = 'http://www.myremoteserver.com/file.exe';   3.    header('Content-Type: application/octet-stream');   4.    header("Content-Transfer-Encoding: Binary");    5.    header("Content-disposition: attachment; filename=\"" . basename($file_url) . "\"");    6.    readfile($file_url);   7.    ?>

isset

$_FILES['userfile']['name'];

concatenation

if elese

move_uploaded_file

!empty

type input

type submit input

enctype

$_FILES['userfile']['size'];

$_FILES['userfile']['type'];

$_FILES['userfile']['tmp_name'];

str_replace

how to check file is uploaded or not how to get the file name which is uploaded how to create the directory using concatenation how to chcek is really uploaded or not how to move form temporary file to real location after redirect, where it moves how to uplload the file  how to submit the file to uplaod how to know the size of file how to know ht type of file how to send to tempertoy folder