&lt;?php    $str = &quot;Hello world. It's a beautiful day.&quot;;    print_r &#40;explode&#40;&quot; &quot;,$str&#41;&#41;;?&gt;
A. Array ( [0] => Hello [0] => world. [0] => It’s [0] => a [0] => beautiful [0] => day. )
B. Array ( [0] => Hello [1] => world. [2] => It’s [3] => a [4] => beautiful [5] => day. )
C. Hello world. It’s a beautiful day.
D. Array ( [1] => Hello [2] => world. [3] => It’s [4] => a [5] => beautiful [6] => day. )
Answer:A
&lt;?php    $str = &quot;Hello world. It's a beautiful day.&quot;;    print_r &#40;explode&#40;&quot; &quot;,$str&#41;&#41;;?&gt;
A. Array ( [0] => Hello [0] => world. [0] => It’s [0] => a [0] => beautiful [0] => day. ) B. Array ( [0] => Hello [1] => world. [2] => It’s [3] => a [4] => beautiful [5] => day. ) C. Hello world. It’s a beautiful day. D. Array ( [1] => Hello [2] => world. [3] => It’s [4] => a [5] => beautiful [6] => day. )
Explanation: The explode() function breaks a string into an array.