Learn PHP
Site Map
Php Functions
C++ - Starting Out
Web Design Tools
Photoshop Tutorials
Droid Phones
Building Websites
ArrowTech Blog
Web Servers
Making Money
Favorite Links
Privacy Policy

Category: php


Php file functions, Opening a file in php, reading a file in php, writing a file in php

In this tutorial we will look at the most commonly used file functions used in php. The examples below should be pretty familiar to the seasoned php scripter, but they are useful nonetheless. We will end this tutorial with a php script and an html form that will read the contents of a file into a string variable and output it into a textfield for editing. You can try the script out below.

Php offers programmers and web design experts serveral useful and built in functions for handling files.
Here I show you how to get content from a file, read it into a php variable, and then write it into another file.  The example below is

Here is our first example.


$file = 'mytestfile_01.txt'; //the name of our file
$handle = fopen($file, 'a'); //now we open the file and give it a handle to refer to it
$contents = fread($handle, filesize($filename)); //read the contents into the file
        $file = 'mytestfile_02.txt'; //the name of our second test file
        $handle = fopen($file, 'wb');
        fwrite($handle, $contents);      //write mytestfile_01.txt content into mytestfile_02.txt.
        fclose($handle); //close the file

The above example works pretty good and will do the job, but fortunatley if you just want to read the contents of a file and store it into another file on your linux or windows system there is two php functions that will make writing your script much easier.

string file_get_contents ( string $filename [, int $flags = 0 [, resource $context [, int $offset = -1 [, int $maxlen = -1 ]]]])

string file_put_contents ( string $filename [, int $flags = 0 [, resource $context [, int $offset = -1 [, int $maxlen = -1 ]]]] )

These two PHP functions give us the same result as all that code in the first example. Lets look at how to use these PHP file handling functions.



$file = 'mytestfile_01.txt';
$content = file_get_contents($file);
file_put_contents($file, $content);


Finally lets take these two examples and  put together a php script that will allow you to open a file on your server, edit it, and then save it. The following is a simple tool that I use with many of my websites. While this is not the best text editor in the world, it really comes in handy when you are away from your desk and you see a place on your site that you want to edit. You just open up the content, edit it and then save it back right hrere on your server. Also, if you are hosting your website somewhere like Godaddy.com, you will definitely want to set up yourself with a qick way to edit your files on the go, because logging onto Godaddy can be time consuming, even on a fast connection.

First make a folder and name it /arrowhead_editor/. Then make a file and called /the_editor.php the_editor.php and place it inside.

$file = 'test.php';

    $content =  $_GET['content'];
    file_put_contents($file,$content); //NOTE these files will be made if they don't exist already
    $content = file_get_contents($file);
    $_GET['content'] = NULL;
    $content = file_get_contents($file);   

<link rel=\"stylesheet\" type=\"text/css\" href=\"editor.css\" /> bk

<title> Mr Arrowhead Editor </title>


<b> Mr Arrowhead Editor </b>
<form method=\"get\" action=\"the_editor.php\">

<input type=\"submit\" />
<textarea cols=\"100\" rows=\"75\" name=\"content\">
<?php echo $content; ?>
<input type=\"submit\" name=\"\" />



Author: D.Shaun Morgan

convert timestamp to readable date time using php Convert Unix Timestamp to Readable Date Time PHP User Function string function convert_timestamp(string $file_in

creating image watermarks Creating PHP Watermarks $my_image = imagecreatefromjpeg('photo.jpeg'); $watermark = imagecreatetruecolor(100

need to print out an array using php How toPrint PHP Arrays Things to Consider Are: Array Type- Single Array or Multidimensional Array


odd number php script Testing for Odd/Even Numbers - PHP Example Banner Rotation PHP Script Odd/Even Numbers The easiest way to setup an Odd / Even test using PHP i

how to upload images and files using php Upload Images to Webserver HTML Form PHP Function # UPLOAD FILE function upload_file(){ echo '

using php cookies variables Using Cookie Variables in PHP Setting cookies in php is pretty straight forward. There is a php function: setcookie(); This function mu

how to unzip files on your free hosting account Uzipping Files on Your Web Server If you are using a free hosting account with godaddy.com and many of the other Free hosts out there, you may have found that they don't offer you a lot o

passing data from one form to another form using php Passing data from one form to another form To pass php data from a form and then catch that data into another form one way to accomplish this task is to intermi

Just In Time Compiling JIT - Just in Time Compilers JIT refers to a special software that is found in web-browsers, and scripting engines such PHP's Zend. (My understanding of ZEND is that it

Storing image locations mysql Store Image URL in Database Retrieve Image with PHP Script

how to turn variable value into variable name Variable Variables in PHP Every so often when you are writing a php file, we all run into a situation where we would like for the name of the string that is inside

what-is-php Explanation of PHP Basic Syntax --New to PHP Php is a language that is very much like writing c. The best feature of PHP versus c is that it is designed pri

how to use dreamweaver Dreamweaver - WISIWIG Dreamweaver is a tool that arguably could be called the industry standard for web design . Dreamweaver, is an Adobe product that originally b

Filezilla Filezilla Ftp Client, FTP SERVER vs Wsftp By: D.Shaun Morgan While I was writing this article, about halfway through, I realized that it would be unfair to tell my readers about

notepad plus Notepad++ Download Notepad Plus Plus Notepad plus plus is an open source, free text editor. It is

how to open create write files using php Php file functions, Opening a file in php, reading a file in php, writing a file in php In this tutorial we will look at the most commonly used file functions used in php. The

stop form spam captcha PHP -- How to Protect My Email Form / Contact Form Against Spam Bots Author: D.Shaun Morgan Versions and Skill Level PHP 5

retreive images mysql using php How to get images out of mysql database with php and use them on my webpages Author: D.Shaun Morgan PHP Version - PHP 5x

how to make money online Making Money on the Internet Sign up for this series of free money making articles Name:

store images mysql using php Storing Images in Mysql Database Tutorial Outline: Creating a Test Mysql Database Example php Database Functio

php example post array Visual example of how PHP handles the super-global array variable "$_POST" Author: D.Shaun Morgan Versions and Skill Level

php arrays Passing PHP Arrays How to pass php variable arrays between pages. Author:

how to write php functions Explanation of a Basic PHP Function What is a PHP function? In PHP a function represents a block of instructions that perform

how to write html form using php When learning PHP to build a website, one of the very first things that any newcomer, or beginner needs to learn is how to use HTML or XHTML (both will mean the same for this tutorial.) fo

register globals long arrays Security, php.ini, register_globals and register_long_arrays Author: D.Shaun Morgan Versions and Skill Level PHP Version - PHP 5x

how to install php 5 How to Install PHP 5.x.x.x on Windows This is beginner's how-to manual explaining how to quickly setup a PHP 5 installation on a Windows PC. You must have an Apache webserver installed

php passing variables Pass Variables from One Page to Another -- PHP Author: D.Shaun Morgan Tutorial Outline : Passing PHP variables with $_


Leave a Comment


Name:      | Email:      | Website:



Enter The Above Security Code:

Author: James | Website URL: . |
Great Tutorial I love this write up, best one I have read so far about creating files using php.