hash_test.php

<?php

$test = new \stdClass;
$clone1 = clone $test;
$clone2 = clone $test;
$clone1_0 = clone $clone1;


echo 'TEST hash'.spl_object_hash($test) . PHP_EOL;
echo 'CLONE1 hash'.spl_object_hash($clone1) . PHP_EOL;
echo 'CLONE2 hash'.spl_object_hash($clone2) . PHP_EOL;
$clone1_0_hash = spl_object_hash($clone1_0);
echo 'CLONE1_0 hash'.$clone1_0_hash . PHP_EOL;
unset($clone1_0);

$clone1_1 = clone $clone1;
$clone1_2 = clone $clone1;
echo 'CLONE1_1 hash'.spl_object_hash($clone1_1) . PHP_EOL;
echo 'CLONE1_1 hash'.spl_object_hash($clone1_2) . PHP_EOL;

var_dump( spl_object_hash($clone1_1) == $clone1_0_hash );