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PHP
Level:-Basic
Q(1) How can you enable error reporting in PHP?
A  “display_errors” is equal “on” in the php.ini.
B  “ini_set('display_errors', 1)” in your script.
C  include “error_reporting(E_ALL)” in your code
D  All of the above.
Q(2) What will be the output of the following PHP code ?
    if (-100)
        print "hi" ;
    else
        print "how are u";
A   how are u
B   hi
C   Error
D   No output
Level:-Intermediate
Q(1) How can we register the variables into a session?
A  session_register ($ur_session_var)
B  session.register ($ur_session_var)
C  session_global ($ur_session_var)
D  session_define ($ur_session_var)
Q(2) What’s the difference between unset() and unlink()
A  unset() sets a variable to “undefined” while unlink() deletes a file we pass to it from the file system.
B  unset() deletes a file we pass to it from the file system while unlink() sets a variable to “undefined”
C  unset() sets a variable to “null” while unlink() deletes a file we pass to it from the file system.
D  unset() sets a variable to “undefined” while unlink() sets a variable to “null”.
Level:-Expert
Q(1)
What will be the output of the following code?
function fn (&$var)
{
$var = $var - ($var/10*5);
return $var;
}
echo fn(100);
A   100
B   50
C   98
D   Error message
Q(2) What would be the output of following:
$a = '1';
echo $b = &$a;
echo $c = "2$b";
A  0,0
B  0,20
C  1,21
D  0,2
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