<?php
$data="98.8degrees";
(double)$data;
(int)$data;
(string)$data;
echo $data;
?>
I was surprised/confused when the actual output was 98.8 degrees
I thought when $data uses (double), it converts to 98.8. Then when moving to (int), it becomes 98 and forth But I guess my analogy is wrong. Can someone explain to me how the output became like that?
Doing
(double)$data;
(int)$data;
(string)$data;
just return the double, int and string values but they don't change. To change them, you need to do assign the return values to the actual variable like this:
$data = (double)$data;
$data = (int)$data;
$data = (string)$data;
You keep casting it, but turn around and discard the results. The value in $data never changes. Try the settype() function.
What you probably meant to do was:
<?php
$data="98.8degrees";
$data=(double)$data;
$data=(int)$data;
echo $data;
?>
If you don't keep the result of your operations, you won't see the result of your operations...
Oh - and I have no idea what you hoped to achieve with the
(string)$string;
statement, since it's unclear if/how you ever defined $string...
