PHP’s array functions such as array_values() and array_key_exists() can be used on an object if
the object…

In a typical web application the most used database action is…

The function mysqli_affected_rows() can be used to perform which of the following actions?
(Choose 2)

What is the best way to run PHP 4 and PHP 5 side-by-side on the same Apache server?

Given the following array:
<code>
$a = array(28, 15, 77, 43);
</code>
Which function will remove the value 28 from $a?

You want to extract the pieces of a date string, which looks like this:
“2005-11-02”. Which of the following pieces of code will properly assign $year,
$month and $day with their respective values?

What is the file locking mode that should be used when writing to a file?

What is the output of the following code?
<code>
1 <?php
2 for ($i = 0; $i < 1.02; $i += 0.17) {
3 $a[$i] = $i;
4 }
5 echo count($a);
6 ?>
</code>

What SimpleXML function is used to parse a file?

What function is ideal for outputting contents of a static file to screen?