The ______ keyword is used to indicate an incomplete class or method, which must be further extended and/or implemented in order to be used.

Which of the following responsible for generates the backtrace

Which of the following is not a boolean false

$a = &$b; $b = 'Mary?' print $a;

In mail($param1, $param2, $param3, $param4), the $param2 contains:

What is the best way to URL encode a string?

Find the output of the following PHP 7.1 code. var_dump(round(35/6)); ?>

Correct magical PHP constant that is used to determine the current line number of a file?

Correct statement about generators? i) With generators, less code is required to be written as compared to implementing an iterator class. ii) The same generator can be iterated over multiple times.

As an alternative to an existing list() syntax in PHP 7.1, which can be used to de-structure arrays for assignments (including within foreach)?

Find the output of the following code. trait Example { public function myFunction() { echo } } class ABC { public function myFunction() { use Example; echo 'Hello PHP!'; } } $obj = new ABC(); $obj->myFunction(); ?>