SplMinHeap and SplMaxHeap Benchmark

benchmark.php

<?php

// Generate random numbers
// Assume this is our info that we get from a CSV file or somewhere else
$collection = array();
for ($i = 0; $i < 1000000; $i++) {
    $collection[] = rand(1, 1000000);
}


// Benchmark array_walk() with SplMinHeap
$time_start = microtime(true);

$heap = new SplMinHeap;

array_walk($collection, function($item) use ($heap) {
    $heap->insert($item);
}, $collection);

$current = $heap->current();

$time_end = microtime(true);
$time = $time_end - $time_start;

var_dump($time);

reset($collection);

// Benchmark foreach with SplMinHeap
$time_start = microtime(true);

$heap = new SplMinHeap;

foreach ($collection as $item) {
    $heap->insert($item);
}

$current = $heap->current();

$time_end = microtime(true);
$time = $time_end - $time_start;

var_dump($time);

reset($collection);

// Benchmark foreach with temporary array
$time_start = microtime(true);

$array = array();

foreach($collection as $item) {
    $array[] = $item;
}

$current = min($array);

$time_end = microtime(true);
$time = $time_end - $time_start;

var_dump($time);

resut.txt

double(5.2539360523224)
double(1.4025628566742)
double(0.26065611839294)