Static Expression

A static expression is an expression that is wholly defined at coding time. It is akin to hardcoded information. The opposite is dynamic expression.

<?php

    $alphabet = 'a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z';

    // This is a static expression
    $letters = explode(',', $alphabet);

?>

Related : Dynamic Expression, Type Inference