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How To Write A File In PHP

After learning how to read file discussed in previous tutorial, probably you will be asking how to write data to a text file in PHP! Well, this is what you are going to learn now.

The process of writting a file in PHP is similar to reading a file. The only different is the access mode will be 'w' and the function is fputs( ). Let say you are going to write this to an empty 'data.txt' file .

hello@example.com
php@example.com

The first thing you have to do is establish a connection.

<?php

$file = "data.txt";
$fp = fopen($file, "w");
fclose($fp);

As you can see here, the code is exactly the same as the one used to read a file in previous tutorial. The only difference is the access mode 'w' which represents 'write' while 'r' represents 'read'. After a connection had been made, now you tell PHP to write those data to an empty file.

<?php

$file = "data.txt";
$fp = fopen($file, "w");
fputs($fp, "hello@example.com\nphp@example.com");
fclose($fp);

When the above code is executed, it will output the result below.

hello@example.com
php@example.com

Try this Now try to write a script which will note down a visitor IP address and date when he visit your web site.

**You can use $REMOTE_ADDR to find IP address.

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