What does mt_srand( [int $a] ); do?

$a = array('z','x','y'); $b = sort($a); The value of $b is?

How do you call a static method defined by the called class from a parent class?

Is it possible to typehint function arguments using native types (String, Bool, Array, Int, Float, Binary...)?

Which function returns the size of a specified file on the FTP server?

What does this code do? namespace Hello\World;

What is the outpu? 3, y => 2, z => 5); $b = array (x => 9, y => 3, z => -7); vec_add (&$a, $b); print_r ($a); ?>

Difference between the float and the double type in PHP?

Correct way to check if a session has already been started?

What will be the output?

What will be the output?