array-object-performance.php

<?php

require_once 'C:\laragon\www\test\wp-load.php';

echo 'Filling up array...' . "\n";

$size   = 10 * 1000;
$cycles = 1000 * 1000;

$array = [];

for ( $key = 0; $key < $size; $key ++ ) {
	$array[ $key ] = wp_rand();
}

echo 'Creating object...' . "\n";

$object = (object) $array;

echo 'Extracting from array...' . "\n";

ob_start();

$start = microtime( true );
for ( $i = 0; $i < $cycles; $i ++ ) {
	$key = wp_rand( 0, $size - 1 );
	echo $array[ $key ];
}
$end        = microtime( true );
$array_time = $end - $start;

ob_get_clean();


echo 'Extracting from object...' . "\n";

ob_start();

$start = microtime( true );
for ( $i = 0; $i < $cycles; $i ++ ) {
	$key = wp_rand( 0, $size - 1 );
	echo $object->{$key};
}
$end         = microtime( true );
$object_time = $end - $start;

ob_get_clean();

echo 'Array time: ' . number_format( $array_time, 3 ) . " s\n";
echo 'Object time: ' . number_format( $object_time, 3 ) . " s\n";