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@ 2013-10-17T13:38:51Z

<?php
$test['index'] = 'fdngnkfdklgn';

var_dump(empty($test['keinIndex']), empty($test['index']));
$test['index'] = '';
var_dump(empty($test['index']));

var_dump(empty($bbbb));

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

45.46 ms | 402 KiB | 5 Q