How to echo 4 word from a sentence

[simon2x1]

I want to echo only 4 word from the sentence i selected from the database example (i am the only at home) if i select it from my database and i echo it i want (i am the only)
to display.

[johny10151981]

try to understand explode function

[simon2x1]

<?
$word = "the man is on the way to is house";

echo "the man is on the way to is house";

//the result is these below
//the man is on the way to is house
?>

if i echo the string $word it will display this "the man is on the way to is house" i just want "the man is on" to display alone how can i do these

[zorgi]

<?
$word = "the man is on the way to is house";

echo "the man is on the way to is house";

//the result is these below
//the man is on the way to is house
?>

if i echo the string $word it will display this "the man is on the way to is house" i just want "the man is on" to display alone how can i do these

What do you need this for?
From your explanation of the problem I would say that solution is:

$word = "the man is on the way to is house";
echo implode(" ", array_slice(explode(" ", $word), 0, 4));

array array_slice ( array $array , int $offset [, int $length [, bool $preserve_keys = false ]] )

string implode ( string $glue , array $pieces )

array explode ( string $delimiter , string $string [, int $limit ] )