Q.1
What is the limit of a PHP integer value?
Q.2
PHP considers the following values as False
Q.3
Some PHP code might not have a namespace and therefore lives in the . . . . . . namespace.
Q.4
All classes in the same namespace or subnamespace don’t have to the declared in the same PHP file.
Q.5
It is possible to create a hierarchy of namespaces in PHP.
Q.6
The value of __NAMESPACE__ is a string that contains the current namespace name. In global, un-namespaced code, it contains . . . . . .
Q.7
With the introduction of namespaces, the same function name can be used in multiple places.
Q.8
Within a namespace, for accessing the built-in PHP classes you can prefix the class name with a . . . . . and let PHP look in the global class list.
Q.9
Which of the below namespace declaration is correct?
Q.10
Multiple namespaces cannot be defined in the same file.
Q.11
As the namespace size grows, using namespaces can become a little repetitious, but PHP also provides the . . . . . statement, which allows you to alias a specific namespace.
Q.12
PHP does not support numbers written in hexadecimal, octal or scientific notation.
Q.13
PHP ..... demand that you declare a data type when you create a variable.
Q.14
strval()
Q.15
What will be the output of the following php code? 
<?php
$num  = "1";
$num1 = "2";
print $num+$num1;
?>
Q.16
You can test the type of any variable with the ..... function.
Q.17
Assigning the empty string (like ' ') to a variable automatically renders it empty.
Q.18
If you echo a Boolean variable, the value FALSE displays as a .... and the value TRUE echoes as a .....
Q.19
When a simple data type is casted to an array, an array is created with the original value in the first element.
Q.20
Which of following variables can be assigned a value to it?
1. $3hello
2. $_hello
3. $this
4. $This
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