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@ 2016-01-06T07:26:37Z

<?php
   $var = "laruence";
   $var_dup = $var;
   debug_zval_dump($var_dup);
   debug_zval_dum($var);
   unset($var);
   debug_zval_dump($var_dup);

Output
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debug_zval_dump: documentation ( source)

preferences:dark modelive preview

54.31 ms | 402 KiB | 5 Q