In PHP, to import another file, we use the include or require statement. Both of these statements work in the same way, the only difference between them is that if the included file is not found, then the require statement will stop the script execution while include statement will just throw a warning message and continue with the script execution.
Here are some examples:
### 1. Include statement
In this example, we are including the sample_file.php file in our current PHP script using the include statement.
### 2. Require statement
In this example, we are including the sample_file.php file in our current PHP script using the require statement.
### 3. Including a file from a different directory
In this example, we are including the sample_file.php file from a directory called dir which is located in the same directory as the current PHP script.
### 4. Including a file with a different extension
In this example, we are including the sample_file.html file in our current PHP script using the include statement even though HTML is not a typical PHP file extension.
These are some basic examples of how to import another file in PHP.