bench concaténation

bench.php

<?php

function benchStrintf() {
    $begin = microtime(true);
    for ($i=0; $i<1000000; $i++) {
        $result = sprintf('%d = %d + %d selon %s', 42, 11, 31, 'php');
    }
    var_dump(microtime(true)-$begin);
}

function benchDot() {
    $begin = microtime(true);
    for ($i=0; $i<1000000; $i++) {
        $result = 42 . ' = ' . 11 . ' + ' . 31 . ' selon php';
    }
    var_dump(microtime(true)-$begin);
}

function benchImplode() {
    $begin = microtime(true);
    for ($i=0; $i<1000000; $i++) {
        $result = implode(" ", array(
            42,
            '=',
            11,
            31,
            'selon',
            'php'
            ));
    }
    var_dump(microtime(true)-$begin);
}

benchStrintf();     //double(0.9798150062561)
benchDot();         //double(0.67017388343811)
benchImplode();     //double(1.457218170166)