PHP Variables and Operators

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What is the output of the expression `$x + $y` if `$x = 10` and `$y = 5`?

20

5

10

15 (correct)

What is the purpose of the assignment operator `+=` in PHP?

To perform arithmetic operations

To compare two values

To concatenate strings

To assign a value to a variable (correct)

What is the output of the expression `$x % $y` if `$x = 10` and `$y = 5`?

5

2

10

0 (correct)

What type of operator is used to compare two values in PHP?

Comparison Operator (C) Signup and view all the answers

What is the output of the expression `$x - $y` if `$x = 10` and `$y = 5`?

5 (B) Signup and view all the answers

What is the purpose of the increment operator `++` in PHP?

To increment a value (C) Signup and view all the answers

What type of operators are used to perform mathematical operations in PHP?

Arithmetic Operators (D) Signup and view all the answers

Which operator is used to assign a value to a variable in PHP?

= (C) Signup and view all the answers

What type of operators are used to combine conditional statements in PHP?

Logical Operators (A) Signup and view all the answers

Which operator is used to check if two values are equal in PHP?

== (B) Signup and view all the answers

What type of operators are used to manipulate strings in PHP?

String Operators (B) Signup and view all the answers

Which operator is used to concatenate strings in PHP?

. (A) Signup and view all the answers

What is the purpose of the conditional operator?

To provide a shorthand way to write an if-else statement (D) Signup and view all the answers

What is the output of the expression `$x && $y` if `$x` is `true` and `$y` is `false`?

bool(false) (D) Signup and view all the answers

What is the function of the `===` operator?

Check if two values are equal, and of the same type (A) Signup and view all the answers

What is the purpose of the string operator `.`?

To concatenate strings (D) Signup and view all the answers

What is the output of the expression `$name = "John"; $greeting = "Hello, " . $name . "!";`?

Hello, John! (A) Signup and view all the answers

What is the function of the `||` operator?

Logical OR (C) Signup and view all the answers

PHP Variables and Operators

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Questions and Answers

What is the output of the expression `$x + $y` if `$x = 10` and `$y = 5`?

What is the purpose of the assignment operator `+=` in PHP?

What is the output of the expression `$x % $y` if `$x = 10` and `$y = 5`?

What type of operator is used to compare two values in PHP?

What is the output of the expression `$x - $y` if `$x = 10` and `$y = 5`?

What is the purpose of the increment operator `++` in PHP?

What type of operators are used to perform mathematical operations in PHP?

Which operator is used to assign a value to a variable in PHP?

What type of operators are used to combine conditional statements in PHP?

Which operator is used to check if two values are equal in PHP?

What type of operators are used to manipulate strings in PHP?

Which operator is used to concatenate strings in PHP?

What is the purpose of the conditional operator?

What is the output of the expression `$x && $y` if `$x` is `true` and `$y` is `false`?

What is the function of the `===` operator?

What is the purpose of the string operator `.`?

What is the output of the expression `$name = "John"; $greeting = "Hello, " . $name . "!";`?

What is the function of the `||` operator?

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PHP Variables and Operators

Choose a study mode

Podcast

Questions and Answers

What is the output of the expression $x + $y if $x = 10 and $y = 5?

What is the purpose of the assignment operator += in PHP?

What is the output of the expression $x % $y if $x = 10 and $y = 5?

What type of operator is used to compare two values in PHP?

What is the output of the expression $x - $y if $x = 10 and $y = 5?

What is the purpose of the increment operator ++ in PHP?

What type of operators are used to perform mathematical operations in PHP?

Which operator is used to assign a value to a variable in PHP?

What type of operators are used to combine conditional statements in PHP?

Which operator is used to check if two values are equal in PHP?

What type of operators are used to manipulate strings in PHP?

Which operator is used to concatenate strings in PHP?

What is the purpose of the conditional operator?

What is the output of the expression $x &amp;&amp; $y if $x is true and $y is false?

What is the function of the === operator?

What is the purpose of the string operator .?

What is the output of the expression $name = "John"; $greeting = "Hello, " . $name . "!";?

What is the function of the || operator?

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What is the output of the expression `$x + $y` if `$x = 10` and `$y = 5`?

What is the purpose of the assignment operator `+=` in PHP?

What is the output of the expression `$x % $y` if `$x = 10` and `$y = 5`?

What is the output of the expression `$x - $y` if `$x = 10` and `$y = 5`?

What is the purpose of the increment operator `++` in PHP?

What is the output of the expression `$x && $y` if `$x` is `true` and `$y` is `false`?

What is the function of the `===` operator?

What is the purpose of the string operator `.`?

What is the output of the expression `$name = "John"; $greeting = "Hello, " . $name . "!";`?

What is the function of the `||` operator?