PHP

<?php
    // connect to handle a file
    $file_handler = fopen("http://www.mysite.com/sitenotes.txt", "r");
    /* to open a local file use this instead
    $file_handler = fopen("data.txt", "r");
    */
    // read the contents
    $contents = fread($file_handler, filesize($file));
    // close the file
    fclose($file_handler);
    // print the contents on your page
    echo $contents;
?>

include v.s. require

• include and require only differ in that
  • require -  script will HALT if the file specified is not found
  • include -  script will CONTINUE if the file specified is not found

include

include 'include/init.inc.php';

• include will include the file - even if already included - as an overwrite.
• Previous variable declarations and functions will be replaced.

include_once

include_once 'include/init.inc.php';

• include_once will ONLY include the file if NOT already included.
• if file already included, this statement is basically ignored

require

require 'include/init.inc.php';

• Require will include the file - even if already included - as an overwrite.
• Previous variable declarations and functions will be replaced.

Define Constant

define('STATIC_CONSTANT', true);

Variable Declaration/Instantiation

$dog = 'pitbul';

$file = $tmpFile;