PHP Standard I/O (for Contest)

<?php
	if($_SERVER['HTTP_HOST'] == '127.0.0.1') {
		$file = fopen('input.txt', 'r');
	} else {
		$file = STDIN;
	}
	
  while(($line = fgets($file)) !== false) {
       	$line = trim($line);
	   	if($line == 42)
	   		break;
		echo $line . "\n";
    }
	
	
	
?>