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Define PHP

PHP Installation


PHP Case Sensitivity

PHP Variable

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PHP Operators

PHP Receiving Input

PHP Decision Making

PHP Loops

PHP Jumping Statement

PHP Image Gallery

PHP Arrays

PHP File Upload

PHP String Functions

PHP Math Functions

PHP Functions

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PHP Constant Variable

PHP Superglobals

PHP Form Validation

PHP Include Statement

PHP Filter

PHP File Handling

PHP Date Functions

PHP Cookies

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PHP-MySQL Connectivity

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PHP MySQL Injection

PHP include statement

Including files is very useful when you want to include the same text, HTML, or PHP file on multiple pages of a website. It is possible to insert the content of one PHP file into another PHP file with the include or require statement.

The include and require statements are identical, except:
require will produce a fatal error (E_COMPILE_ERROR) and stop the script.
include will only produce a warning (E_WARNING) and the script will continue.

Example 1: Assume we have a standard header file called "header.php"

   echo "<h1> Website Heading </h1>";
   <hr />
To include the header file in a page, use the include statement:
     <?php include 'header.php';?>
     <h1>Welcome to my home page!</h1>
     <p>Some text.</p>
     <p>Some more text.</p>
Example 2: Assume we have a standard menu file called "menu.php":
  echo '<a href="home.php">Home</a> -
  <a href="html.php">HTML Tutorial</a> -
  <a href="css.php">CSS Tutorial</a> -
  <a href="js.php">JavaScript Tutorial</a> -
  <a href="php.php">PHP Tutorial</a>';
All pages in the Web site should use this menu file. Here is how it can be done like this:
    <div class="menu">
      <?php include 'menu.php';?>
    <h1>Welcome to my home page!</h1>
    <p>Some text.</p>
    <p>Some more text.</p>

PHP include vs. require

The require statement is also used to include a file into the PHP code. However, there is one big difference between include and require, when a file is included with the include statement and PHP cannot find it, the script will continue to execute:

    <h1>Welcome to my home page! </h1>
    <?php require 'noFileExists.php'; ?>