explode get the first word in php code example

Example 1: php explode sentence into words

$words = explode(" ", $sentence);

Example 2: php explode and get first value

$beforeDot = array_shift(explode('.', $string));
$beforeDot = current(explode(".", $string));

// PHP <= 5.3:
$beforeDot = explode(".", $string);
$beforeDot = $beforeDot[0];