Php file opening as text

Question

I need a bit of PHP in a website I am building for a school project. I need it to upload .swf files. But when I press the "upload" button, it opens up the php file in the browser rather than running it, or displaying an error if there is one.

Nội dung chính Show

PHP Open File - fopen()
PHP Read File - fread()
PHP Close File - fclose()
PHP Read Single Line - fgets()
PHP Check End-Of-File - feof()
PHP Read Single Character - fgetc()
Complete PHP Filesystem Reference
PHP Exercises
Why is my PHP code showing up as text?
How do I open .PHP files?
What format is PHP?
How do I run a PHP file in Windows?

This is my HTML code:

<!DOCTYPE html>
<html>
<head>
<title>New Smallcut</title>
</head>
<body>
<font face="verdana" size="2">
<div style="text-align:center">
This is a webpage<br>
But no matter what, I am King
<p><a href=http://www.kiaye.org/>KIAYEorg</a></p>
    <br>
    <img src=KingSn0w.png width="100" height="100" alt=“King Sn0wCh2ld’s logo”>


    <form action="upload.php" method="post" enctype="multipart/form-data">
        Select game to upload:
        <input type="file" name="fileToUpload" id="fileToUpload">
        <input type="submit" value="Upload Image" name="submit">
    </form>
</div>
</font>

It is supposed to put a bit of text above an image and the form, on an otherwise plain webpage.

Next is the PHP, which I got from W3Schools.

<?php
$target_dir = "uploads";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
$check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
if($check !== false) {
    echo "File is an image - " . $check["mime"] . ".";
    $uploadOk = 1;
} else {
    echo "File is not an image.";
    $uploadOk = 0;
}
}

// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}

// Allow certain file formats
if($imageFileType != "swf") {
echo "Sorry, only .swf files are allowed.";
$uploadOk = 0;
}
?>

I have absolutely no clue why it's not working, I am just getting back into HTML after 5 years of not using it (I was 9 when I last used it), and I really need this bit of PHP (which I do not understand, for the record), to work. I will later need a bit more PHP to work for a site-wide search, and I assume, the search results and stuff, and it would be comforting if I could get this to work.

Thanks in advance!

In this chapter we will teach you how to open, read, and close a file on the server.

PHP Open File - fopen()

A better method to open files is with the fopen() function. This function gives you more options than the readfile() function.

We will use the text file, "webdictionary.txt", during the lessons:

AJAX = Asynchronous JavaScript and XML
CSS = Cascading Style Sheets
HTML = Hyper Text Markup Language
PHP = PHP Hypertext Preprocessor
SQL = Structured Query Language
SVG = Scalable Vector Graphics
XML = EXtensible Markup Language

The first parameter of fopen() contains the name of the file to be opened and the second parameter specifies in which mode the file should be opened. The following example also generates a message if the fopen() function is unable to open the specified file:

Example

<?php
$myfile = fopen("webdictionary.txt", "r") or die("Unable to open file!");
echo fread($myfile,filesize("webdictionary.txt"));
fclose($myfile);
?>

Run example »

Tip: The fread() and the fclose() functions will be explained below.

The file may be opened in one of the following modes:

Modes	Description
r	Open a file for read only. File pointer starts at the beginning of the file
w	Open a file for write only. Erases the contents of the file or creates a new file if it doesn't exist. File pointer starts at the beginning of the file
a	Open a file for write only. The existing data in file is preserved. File pointer starts at the end of the file. Creates a new file if the file doesn't exist
x	Creates a new file for write only. Returns FALSE and an error if file already exists
r+	Open a file for read/write. File pointer starts at the beginning of the file
w+	Open a file for read/write. Erases the contents of the file or creates a new file if it doesn't exist. File pointer starts at the beginning of the file
a+	Open a file for read/write. The existing data in file is preserved. File pointer starts at the end of the file. Creates a new file if the file doesn't exist
x+	Creates a new file for read/write. Returns FALSE and an error if file already exists

PHP Read File - fread()

The fread() function reads from an open file.

The first parameter of fread() contains the name of the file to read from and the second parameter specifies the maximum number of bytes to read.

The following PHP code reads the "webdictionary.txt" file to the end:

fread($myfile,filesize("webdictionary.txt"));

PHP Close File - fclose()

The fclose() function is used to close an open file.

It's a good programming practice to close all files after you have finished with them. You don't want an open file running around on your server taking up resources!

The fclose() requires the name of the file (or a variable that holds the filename) we want to close:

<?php
$myfile = fopen("webdictionary.txt", "r");
// some code to be executed....
fclose($myfile);
?>

PHP Read Single Line - fgets()

The fgets() function is used to read a single line from a file.

The example below outputs the first line of the "webdictionary.txt" file:

Example

<?php
$myfile = fopen("webdictionary.txt", "r") or die("Unable to open file!");
echo fgets($myfile);
fclose($myfile);
?>

Run example »

Note: After a call to the fgets() function, the file pointer has moved to the next line.

PHP Check End-Of-File - feof()

The feof() function checks if the "end-of-file" (EOF) has been reached.

The feof() function is useful for looping through data of unknown length.

The example below reads the "webdictionary.txt" file line by line, until end-of-file is reached:

Example

<?php
$myfile = fopen("webdictionary.txt", "r") or die("Unable to open file!");
// Output one line until end-of-file
while(!feof($myfile)) {
echo fgets($myfile) . "<br>";
}
fclose($myfile);
?>

Run example »

PHP Read Single Character - fgetc()

The fgetc() function is used to read a single character from a file.

The example below reads the "webdictionary.txt" file character by character, until end-of-file is reached:

Example

<?php
$myfile = fopen("webdictionary.txt", "r") or die("Unable to open file!");
// Output one character until end-of-file
while(!feof($myfile)) {
echo fgetc($myfile);
}
fclose($myfile);
?>

Run example »

Note: After a call to the fgetc() function, the file pointer moves to the next character.

Complete PHP Filesystem Reference

For a complete reference of filesystem functions, go to our complete PHP Filesystem Reference.

PHP Exercises

Why is my PHP code showing up as text?

If for some reason, PHP is not installed at server OR PHP is not configured to work with your web server, it is no more being treated as a PHP file. It's just seen as a text file being rendered as HTML text in browser.

How do I open .PHP files?

Go to the location of your PHP file, then click the PHP file to select it. Click Open. It's in the bottom-right corner of the window. This will open the PHP file in Notepad++, allowing you to view the file's code and make any necessary edits.

What format is PHP?

php file extension refers to the name of a file with a PHP script or source code that has a ". PHP" extension at the end of it. It's similar to a Word file with a . doc file extension.