Page 298 - Beginning PHP 5.3
P. 298
Part III: Using PHP in Practice
Try It Out Create a File Upload Script
You now have all the knowledge required to create file upload forms and PHP scripts that can handle
them. In this example, you create a script that displays a form allowing the user to upload a JPEG
photo, which is then displayed to them in the page.
First, save the following script as photo_upload.php in your document root folder:
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN”
“http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd”>
<html xmlns=”http://www.w3.org/1999/xhtml” xml:lang=”en” lang=”en”>
<head>
<title>Uploading a Photo</title>
<link rel=”stylesheet” type=”text/css” href=”common.css” />
</head>
<body>
<?php
if ( isset( $_POST[“sendPhoto”] ) ) {
processForm();
} else {
displayForm();
}
function processForm() {
if ( isset( $_FILES[“photo”] ) and $_FILES[“photo”][“error”] ==
UPLOAD_ERR_OK ) {
if ( $_FILES[“photo”][“type”] != “image/jpeg” ) {
echo “<p>JPEG photos only, thanks!</p>”;
} elseif ( !move_uploaded_file( $_FILES[“photo”][“tmp_name”],
“photos/” . basename( $_FILES[“photo”][“name”] ) ) ) {
echo “<p>Sorry, there was a problem uploading that photo.</p>” .
$_FILES[“photo”][“error”] ;
} else {
displayThanks();
}
} else {
switch( $_FILES[“photo”][“error”] ) {
case UPLOAD_ERR_INI_SIZE:
$message = “The photo is larger than the server allows.”;
break;
case UPLOAD_ERR_FORM_SIZE:
$message = “The photo is larger than the script allows.”;
break;
case UPLOAD_ERR_NO_FILE:
$message = “No file was uploaded. Make sure you choose a file to
upload.”;
break;
default:
$message = “Please contact your server administrator for help.”;
}
echo “<p>Sorry, there was a problem uploading that photo. $message</p>”;
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