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;