minte9
LearnRemember / PHP



Name

Function name is case-insensitive. 
 
/** 
 * Function names are case-insensitive
 */

function name() {
    return 1;
}

var_dump(Name() == 1); // true

Return

Return is a language construct, parentheses are not required. 
 
/**
 * Return is not a function, it is a language construct
 * Parantheses are not required
 * 
 * Function returns NULL, if you don't return a value
 */

function A() {
    return (1);
}
    
function B() {
    return 2; // faster
}
    
function C() {
    // return null, by default
}

var_dump(A() == 1);    // true
var_dump(B() == 2);    // true
var_dump(C() == null); // true



  Last update: 531 days ago