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  1. <?php
  2. var_dump(isset($foo));
  3. var_dump(!empty($foo));
Success #stdin #stdout 0.01s 24400KB
comments (?)
stdin
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Standard input is empty
stdout
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bool(false)
bool(false)
https://ideone.com/1vJ1s0
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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