PHP For Loops Easy Questions and Answers

What will be the output of the following PHP code ?

<?php
$stu = array("Ajit", "Ats", "Aju", "Rahul");
    for ($g=0; $g < count($stu) - 1; $g++)	
    {
        if ($stu[$g++] == "Ats") 
		    continue;
        printf ($stu[$g]); 
    }
?>

Correct Option: C

Only Bale is printed as $g++ is done before printing and then checked.

What will be the output of the following PHP code ?

<?php
$emp = array("Neha", "Sumi", "Abhay", "Krishna");
for ($z = 0; $z < count($emp); $z) 
{
    if ($emp[$z++] == "Abhay") 
	    continue;
    printf ($emp[$z]); 
}
?>

Correct Option: C

z is incremented only inside loop z the if condition.

What will be the output of the following PHP code ?

<?php
for ($g = 0; $g % ++$g; $g++) 
{
    print"g";
}
?>

Correct Option: C

Loop condition is true as g%(g+1) is a float non zero value in php.

What will be the output of the following PHP code ?

<?php
for ($c = 4; $c < 9; $c++) 
{
    for(; $c < 9; $c++)         
        print"c";
}
?>

Correct Option: E

The c value is changed in the inner loop and reaches five, thus does not execute the second outer loop.

What will be the output of the following PHP code ?

<?php
$arr = array("Hello", "Interview", "Mania");
foreach ($arr as $val) 
{
    if (count($arr) == 2)
	    print $val;         
}
?>

Correct Option: D

As count($arr) returns 3 the condition is always false.