PHP7 Tutorial

PHP7 HOME PHP7 Intro PHP7 Install PHP7 Syntax PHP7 Variables PHP7 Echo / Print PHP7 Data Types PHP7 Strings PHP7 Constants PHP7 Operators PHP7 If...Else...Elseif PHP7 Switch PHP7 While Loops PHP7 For Loops PHP7 Functions PHP7 Arrays PHP7 Sorting Arrays PHP7 Superglobals

PHP7 Forms

PHP7 Form Handling PHP7 Form Validation PHP7 Form Required PHP7 Form URL/E-mail PHP7 Form Complete

PHP7 Advanced

PHP7 Arrays Multi PHP7 Date and Time PHP7 Include PHP7 File Handling PHP7 File Open/Read PHP7 File Create/Write PHP7 File Upload PHP7 Cookies PHP7 Sessions PHP7 Filters PHP7 Filters Advanced

MySQL Database

MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Delete Data MySQL Update Data MySQL Limit Data


PHP7 XML Parsers PHP7 SimpleXML Parser PHP7 SimpleXML - Get PHP7 XML Expat PHP7 XML DOM



PHP7 Reference

PHP7 Overview PHP7 Array PHP7 Calendar PHP7 Date PHP7 Directory PHP7 Error PHP7 Filesystem PHP7 Filter PHP7 FTP PHP7 Libxml PHP7 Mail PHP7 Math PHP7 Misc PHP7 MySQLi PHP7 Network PHP7 SimpleXML PHP7 Stream PHP7 String PHP7 XML Parser PHP7 Zip PHP7 Timezones

PHP 7 File Create/Write

In this chapter we will teach you how to create and write to a file on the server.

PHP Create File - fopen()

The fopen() function is also used to create a file. Maybe a little confusing, but in PHP, a file is created using the same function used to open files.

If you use fopen() on a file that does not exist, it will create it, given that the file is opened for writing (w) or appending (a).

The example below creates a new file called "testfile.txt". The file will be created in the same directory where the PHP code resides:


$myfile = fopen("testfile.txt", "w")

PHP File Permissions

If you are having errors when trying to get this code to run, check that you have granted your PHP file access to write information to the hard drive.

PHP Write to File - fwrite()

The fwrite() function is used to write to a file.

The first parameter of fwrite() contains the name of the file to write to and the second parameter is the string to be written.

The example below writes a couple of names into a new file called "newfile.txt":


$myfile = fopen("newfile.txt", "w") or die("Unable to open file!");
$txt = "John Doe\n";
fwrite($myfile, $txt);
$txt = "Jane Doe\n";
fwrite($myfile, $txt);

Notice that we wrote to the file "newfile.txt" twice. Each time we wrote to the file we sent the string $txt that first contained "John Doe" and second contained "Jane Doe". After we finished writing, we closed the file using the fclose() function.

If we open the "newfile.txt" file it would look like this:

John Doe
Jane Doe

PHP Overwriting

Now that "newfile.txt" contains some data we can show what happens when we open an existing file for writing. All the existing data will be ERASED and we start with an empty file.

In the example below we open our existing file "newfile.txt", and write some new data into it:


$myfile = fopen("newfile.txt", "w") or die("Unable to open file!");
$txt = "Mickey Mouse\n";
fwrite($myfile, $txt);
$txt = "Minnie Mouse\n";
fwrite($myfile, $txt);

If we now open the "newfile.txt" file, both John and Jane have vanished, and only the data we just wrote is present:

Mickey Mouse
Minnie Mouse

Complete PHP Filesystem Reference

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