Which one of the following technologies was not built into PHP before version 5?

How can precisely one byte be read from a file, pointed by $fp? (Choose 2)

What will the following code piece print?
<code>
echo strtr(‘Apples and bananas’, ‘ae’, ‘ea’)
</code>

What is the output of the following code?
<code>
printf(‘%4$d %2$s sit on 2 trees and eat %3$3.2f %1$s’, “bananas”,
“monkeys”, 9, 99);
</code>

How do you allow the caller to submit a variable number of arguments to a function?

How many array elements will be found in the return value of:
<code>
split(“.”, “B.C”)
</code>

Can calls to Web Services be queued natively in PHP?

What is the output of the following code?
<code>
echo “22” + “0.2”, 23 . 1;
</code>

What is the output of the following code: echo “1” + 2 * “0x02”;

What is the name of the key pointing to the domain name in the array returned by parse_url()?