PHP Test 6

Which of these statements is true?

Is php can support multiple inheritance?

How would you add 1 to the variable $count?

Which of the following is used to check if a function has already been defined?

what is the return value of this substr function?

$rest = substr("abcdef", -1);
 $rest = substr("abcdef", 0, -1);

Assume that your php file 'index.php' in location c:/apache/htdocs/phptutor/index.php. If you used basename($_SERVER['PHP_SELF']) function in your page, then what is the return value of this function ?

program will call the function display_result()

$x="display"; 
 ${$x.'_result'} ();

All variables in PHP start with which symbol?

Father of PHP?

In PHP the error control operator is

what will be the output of below code ?

$str="3dollars"; 
 $a=20; 
 $a+=$str; 
 print($a);

what will be the output of below code ?

 function zz(& $x) 
 { 
 $x=$x+5; 
 } 
 $x=10; 
 zz($x); 
 echo $x;

what will be the output of below code ?

echo $_SERVER['REMOTE_ADDR'];

What will be the output of below code?

$x=dir("."); 
 while($y=$x->read()) 
 { 
 echo $y."
 " 
 } 
 $y->close();

What will be the output of below code?

$qpt = 'QualityPointTechnologies'; 
 echo preg_match("/^Quality/", $qpt);

What will be the output of below code?

$test="3.5seconds"; 
 settype($test,"double"); 
 settype($test,"integer"); 
 settype($test,"string"); 
 print($test);

What will be the output of below code?

$x=array(2=>"mouse",7=>"keyboard"); 
 $y=array_keys($x); 
 echo $y[1];

What will be the output of below code?

$data="98.8degrees"; 
 (double)$data; 
 (int)$data; 
 (string)$string; 
 echo $data;

What will be the output of below code?

$x="101.5degrees"; 
 (double)$x; 
 (int)$x; 
 echo (string)$x;

PHP is