Call classes in other files from PHP files

This time I will bring you the precautions for calling classes in other files in PHP files and calling other file classes in PHP files. The following is a practical case, let's take a look.

First declare a class in a tool.php file:

<?php
  class tool {
  function say(){
  $result="Hello,World";
  return $result;
  }
}

Call the method in the above class in another file main.php:

<?php
  require_once &#39;tool.php&#39;;
  $tool=new tool();
  $content=$tool->say();
  echo $content;
?>

I believe I saw it You have mastered the method in the case of this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

PHP prototype mode case analysis

Detailed explanation of the use of PHP delayed static binding

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