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Exercise:

Get the length of the string "Hello World!".

echo strlen("Hello World!");

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echo w3exercise_input_no_0
("Hello World!");

Completed 0 of 47 Exercises:

PHP Syntax

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Go to PHP Syntax Tutorial

PHP Variables

Exercise 1 Exercise 2 Go to PHP Variables Tutorial

PHP Strings

Exercise 1 Exercise 2 Exercise 3 Go to PHP Strings Tutorial

PHP Operators

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to PHP Operators Tutorial

PHP If...Else

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to PHP If...Else Tutorial

PHP Switch

Exercise 1 Exercise 2 Go to PHP Switch Tutorial

PHP Loops

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to PHP Loops Tutorial

PHP Functions

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to PHP Functions Tutorial

PHP Arrays

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Exercise 6 Exercise 7 Exercise 8 Go to PHP Arrays Tutorial

PHP Forms

Exercise 1 Exercise 2 Go to PHP Forms Tutorial

PHP Dates

Exercise 1 Exercise 2 Exercise 3 Go to PHP Dates Tutorial

PHP Advanced

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Exercise 6 Go to PHP Advanced Tutorial