if-else statement in PHP is used to evaluate a single expression and execute a block of code based on the result of that expression.
Which of the following loops in PHP guarantees that the code block will be executed at least once, even if the condition is false?
A). for loop
B). while loop
C). do-while loop
D). foreach loop
What does the following PHP code snippet do?<?php
$x = 1;
while ($x <= 5) {
echo 'The number is: $x
';
$x++;
}
?>
A). It prints numbers from 1 to 5
B). It prints numbers from 5 to 1
C). It prints 'The number is: 5' repeatedly
D). It prints 'The number is: 1' repeatedly
What will be the output of the following PHP code?<?php
for ($i = 1; $i <= 5; $i++) {
if ($i == 3) {
continue;
}
echo 'The number is: $i
';
}
?>
A). The number is: 1
The number is: 2
The number is: 3
B). The number is: 1
The number is: 2
The number is: 4
The number is: 5
C). The number is: 3
D). The number is: 4
Which PHP control structure is used to evaluate multiple conditions and execute a block of code based on the first condition that is true?
A). if-else statement
B). for loop
C). switch statement
D). while loop
What is the purpose of the else statement in PHP?
A). To execute a block of code if a specified condition is true
B). To execute a block of code if the preceding if condition is false
C). To add additional conditions to the if statement
D). To evaluate an expression against multiple possible cases
What does the following PHP code snippet do?<?php
$colors = array('Red', 'Green', 'Blue');
foreach ($colors as $color) {
echo 'Color: $color
';
}
?>
A). It prints 'Color: Red'
B). It prints 'Color: Green'
C). It prints 'Color: Blue'
D). It prints all the elements of the $colors array
What is the purpose of the break statement in PHP?
A). To exit a loop or switch statement prematurely
B). To skip the current iteration of a loop
C). To restart the current iteration of a loop
D). To continue to the next iteration of a loop
Which PHP control structure is used to execute a block of code based on the evaluation of multiple conditions?
A). if-else statement
B). for loop
C). switch statement
D). while loop
What is the output of the following PHP code?<?php
$x = 5;
if ($x > 3) {
echo 'Hello';
} else {
echo 'Goodbye';
}
?>
A). Hello
B). Goodbye
C). Nothing
D). Error
Which control structure in PHP is used to execute a block of code if a specified condition is true, and another block of code if the condition is false?
A). if-else statement
B). for loop
C). switch statement
D). while loop