What are the differences between accessing files through the file system and via HTTP in PHP?

When accessing files through the file system in PHP, you are directly interacting with files on the server's file system using functions like fopen(), fread(), and fwrite(). On the other hand, when accessing files via HTTP, you are making HTTP requests to retrieve files from a remote server using functions like file_get_contents() or cURL. To access files through the file system in PHP: 

$file = fopen("example.txt", "r");
$data = fread($file, filesize("example.txt"));
fclose($file);
echo $data;
```

To access files via HTTP in PHP:
```php
$data = file_get_contents("https://example.com/example.txt");
echo $data;

Keywords

file system HTTP PHP fopen file_get_contents

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