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  1. <?php
  2.  
  3. error_reporting (-1);
  4.  
  5. $cold = "Ivan";
  6.  
  7. if (isset ($cold))
  8. 	echo "Online";
  9.  
  10. 	else 
  11. 	echo "Not online";
Success #stdin #stdout 0.03s 26076KB
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Online
https://ideone.com/dYgwRd
language:
PHP (php 7.3.5)
created:
5 days ago
visibility:
public

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