In php, how do I load txt file as a string?

Question

I have a text file that contains paragraphs of text. I want to load it as a string in php, and then collect all the e-mail addresses within it as an array. However, how do

Answer 1

file_get_contents

Answer 2

$lines = file('file.txt');

foreach ($lines as $line) {
  // ...
}

Answer 3

$fileContent = file_get_contents($url);

Check the reference at http://php.net/manual/en/function.file-get-contents.php

Answer 4

The simplest way is file-get-contents!

$file_content = file_get_contents('/path/to/file');