strlen('Hello')
strlen() function in PHP is used to return the length of a string. Therefore, strlen('Hello') will return 5, as the string 'Hello' contains five characters.
What will be the output of the following PHP code?<?php
$x = 5;
$y = 10;
echo 'The sum is: ' . ($x + $y);
?>
A). The sum is: 15
B). The sum is: 5 + 10
C). The sum is: $x + $y
D). The sum is: 510
What will be the result of the expression 10 % 3 in PHP?
A). 0
B). 1
C). 3
D). 10
Which of the following PHP operators is used for concatenation of strings?
A). .
B). +
C). &&
D). *
What will be the value of the variable $result after executing the following PHP code?<?php
$x = 5;
$result = ($x > 10) ? 'Yes' : 'No';
?>
A). Yes
B). No
C). True
D). False
Which of the following is a valid variable name in PHP?
A). $my_var
B). $my-var
C). $my var
D). my_var
What data type is the variable $age = 25; in PHP?
A). Integer
B). String
C). Boolean
D). Float
What will be the output of the following PHP code?<?php
$x = 10;
$y = 5;
echo $x + $y;
?>
A). 15
B). 5
C). 10
D). Error
Which of the following is a correct way to assign a floating-point number to a variable in PHP?
A). $price = 10.99;
B). $price = '10.99';
C). $price = '10.99';
D). $price = 10;
What will be the output of the following PHP code?<?php
$name = 'John';
echo 'Hello, $name!';
?>
A). Hello, John!
B). Hello, $name!
C). Hello, !
D). Undefined variable: name
Which of the following statements is true about PHP comments?
A). Comments are ignored by the PHP interpreter
B). Comments can only be single-line
C). Comments must start with /* and end with */
D). Comments are displayed on the webpage