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@ 2014-05-30T10:08:00Z

<?php

var_dump(
    (array)null, // []
    (array)666, // [666]
    (array)'test', // ['test']
    (array)['test','shmest']
);

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

38.88 ms | 402 KiB | 5 Q