bench_if_switch.php

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<?php
require_once( __DIR__ . '/Benchmarker.php' );

class bench_if_switch extends Benchmarker {

        public function __construct() {
                parent::__construct();
                $this->mDescription = "Benchmark if elseif... versus switch case.";
        }

        public function execute() {
                $this->bench( array(
                        array( 'function' => array( $this, 'doElseIf' ) ),
                        array( 'function' => array( $this, 'doSwitch' ) ),
                ));
                print $this->getFormattedResults();
        }

        // bench function 1
        function doElseIf() {
                $a = 'z';
                if( $a == 'a') {}
                elseif( $a == 'b') {}
                elseif( $a == 'c') {}
                elseif( $a == 'd') {}
                elseif( $a == 'e') {}
                elseif( $a == 'f') {}
                elseif( $a == 'g') {}
                elseif( $a == 'h') {}
                elseif( $a == 'i') {}
                elseif( $a == 'j') {}
                elseif( $a == 'k') {}
                elseif( $a == 'l') {}
                elseif( $a == 'm') {}
                elseif( $a == 'n') {}
                elseif( $a == 'o') {}
                elseif( $a == 'p') {}
                else {}
        }

        // bench function 2
        function doSwitch() {
                $a = 'z';
                switch( $a ) {
                        case 'b': break;
                        case 'c': break;
                        case 'd': break;
                        case 'e': break;
                        case 'f': break;
                        case 'g': break;
                        case 'h': break;
                        case 'i': break;
                        case 'j': break;
                        case 'k': break;
                        case 'l': break;
                        case 'm': break;
                        case 'n': break;
                        case 'o': break;
                        case 'p': break;
                        default:
                }
        }
}

$maintClass = 'bench_if_switch';
require_once( RUN_MAINTENANCE_IF_MAIN );