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

What is the output of the following code? $first = “second”; $second = “first”; echo $$$first;

Your supervisor wants you to disallow PHP scripts to open remote HTTP and FTP
resources using PHP’s file functions. Which php.ini setting should you change accordingly?

Which of the following code snippets DO NOT write the exact content of the file “source.txt”
to “target.txt”? (Choose 2)

What is the recommended method of copying data between two opened files?

Which of the following will set a 10 seconds read timeout for a stream?

What function allows resizing of PHP’s file write buffer?

What does the __FILE__ constant contain?

What can prevent PHP from being able to open a file on the hard drive (Choose 2)?

What purpose do namespaces fulfill?