Answer & Solution
'Hello' . ' World' uses the concatenation operator (.) to join the strings 'Hello' and ' World' together. Therefore, the result will be 'Hello World', as the two strings are concatenated to form a single string.
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'Hello' . ' World' in PHP?
'Hello' . ' World' uses the concatenation operator (.) to join the strings 'Hello' and ' World' together. Therefore, the result will be 'Hello World', as the two strings are concatenated to form a single string.
Which of the following PHP functions is used to convert a string to uppercase?
A). strtoupper()
B). ucwords()
C). strtolower()
D). ucfirst()
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 to compare whether two values are equal and of the same data type?
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 is the value of $x after the following PHP code is executed?<?php
$x = 5;
$x += 3;
echo $x;
?>
A). 5
B). 8
C). 15
D). 3
What will be the output of the following PHP code?<?php
$x = 5;
echo $x--;
echo $x;
?>
A). 5 4
B). 5 5
C). 4 4
D). 4 5
Which of the following PHP functions is used to find the length of an array?
A). count()
B). length()
C). size()
D). sizeof()
Which of the following is a correct way to increment the value of a variable $count by 1 in PHP?
A). $count++;
B). $count += 1;
C). $count = $count + 1;
D). $count =+ 1;
What is the purpose of the following PHP function?strlen('Hello')
A). Returns the length of a string
B). Converts a string to lowercase
C). Checks if a string contains a substring
D). Returns the first occurrence of a substring in a string