PHP Get URL Contents And Search For String

$url = 'http://my.url.com/';
$data = file_get_contents( $url );

if ( strpos( 'maybe baby love you', $data ) === false )
{

    // do something

}

//The Answer No 3 Is good But a small Mistake in the function strpos() I have correction the code bellow.

$url = 'http://my.url.com/';
$data = file_get_contents( $url );

if ( strpos($data,'maybe baby love you' ) === false )
{
    // do something
}

$string = file_get_contents('http://example.com/file.html');
if(strpos ('maybe baby love you', $string) === false){
    //do X
}