# 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