How many language construct are there in PHP language?

Question

Just wanna know as echo is language construct then how many are there in PHP?

Answer 1

We have 14 Language Construct:
Assert: Debug command to test a condition and do something if it is not true.
echo: Outputting a value to stdout.
print: Outputting a value to stdout.
Exit: Optionally outputting a message and terminating the program.
Die: This is an alias for the exit.
Return: Terminates a function and returns control to the calling scope, or if called in the global scope, terminates the program.
include: Includes a file and evaluates it. PHP will issue a warning if the file is not found or cannot be read.
include_once: If you specify include_once then PHP will make sure that it includes the file only once.
require: PHP will include a file and evaluate it. If the file is not found or cannot be read, then a fatal error will be generated.
Require_once: If you specify require_once then PHP will make sure that it includes the file only once, but a fatal error will be generated instead of a warning.
Eval: The argument is evaluated as PHP and affects the calling scope.
Empty: Returns a Boolean value depending on whether the variable is empty or not.
Empty variables include null variables, empty strings, arrays with no elements, numeric values of 0, a string value of 0, and Boolean values of false.
isset: Returns true if the variable has been set and false otherwise. unset Clears a variable.
list: Assigns multiple variables at one time from an array.