<?php class Object { public $counter = 0; } $obj = new Object; $copy = clone($obj); // 複製 $ref = $obj; // オブジェクトハンドルが代入される。$refと$objは同じオブジェクト $obj->counter++; echo $copy->counter.PHP_EOL; // 0 echo $ref->counter.PHP_EOL; // 1
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