A language construct is a syntactically allowable part of a program that may be formed from one or more lexical tokens in accordance with the rules of a programming language.^[1] The term "language construct" is often used as a synonym for control structure.

Control flow statements (such as conditionals, foreach loops, while loops, etc) are language constructs, not functions. So while (true) is a language construct, while add(10) is a function call.

Examples of language constructs

In PHP print is a language construct. [1]

<?php print 'Hello world'; ?> 

is the same as:

<?php print('Hello world'); ?> 

In Java a class is written in this format:

public class MyClass { //Code . . . . . . } 

In C++ a class is written in this format:

class MyCPlusPlusClass { //Code . . . . }; 

References