Tag: php

What PHP stands for?

How does the identity operator === compare two values?

Under what circumstance is it impossible to assign a default value to a parameter while declaring a function?

Variables always start with a ........ in PHP

What is the value displayed when the following is executed? Assume that the code was executed using the following URL:

testscript.php?c=25

Choose the appropriate function declaration for the user-defined function is_leap(). Assume that, if not otherwise defined, the is_leap function uses the year 2000 as a default value:

{
$is_leap = (!($year %4) && (($year % 100) ||
!($year % 400)));
return $is_leap;
}


var_dump(is_leap(1987)); /* Displays false /
var_dump(is_leap()); / Displays true */

What is the best way to iterate through the $myarray array, assuming you want to modify the value of each element as you do?

$myarray = array ("My String","Another String","Hi, Mom!");

Which language construct can best represent the following series of if conditionals?

if($a == 'a') {
  somefunction();
} else if ($a == 'b') {
  anotherfunction();
} else if ($a == 'c') {
  dosomething();
} else {
  donothing();
}

What will the following script output?

$array = '0123456789ABCDEFG';
  $s = '';
  for ($i = 1; $i < 50; $i++) {
     $s .= $array[rand(0,strlen ($array) - 1)];
  }


echo $s;

What is the output of the following script?

$a = 10;
$b = 20;
$c = 4;
$d = 8;
$e = 1.0;
$f = $c + $d * 2;
$g = $f % 20;
$h = $b - $a + $c + 2;
$i = $h << $c;
$j = $i * $e;
print $j;