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  1. <?php
  2. $n;
  3. for($i=1;$i<=$n;$i++){
  4. 	for($j=1;$j<=$i;$j++){
  5. 		echo "*";
  6. 	}
  7. 	echo "\n";
  8. }
Success #stdin #stdout #stderr 0.03s 25844KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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PHP Notice:  Undefined variable: n in /home/ItgXQY/prog.php on line 3
https://ideone.com/v5G0vW
language:
PHP (php 7.3.5)
created:
4 hours ago
visibility:
public

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