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  1. <?php
  2. error_reporting (-1);
  3. for ($n=1, $k=1; $n<10, $k<10; $n++, $k++, $f=$n*$k)	{
  4. 	echo "$n x $k = $f \n";
  5. 	}
Success #stdin #stdout #stderr 0.02s 24532KB
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stdin
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Standard input is empty
stdout
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1 x 1 =  
2 x 2 = 4 
3 x 3 = 9 
4 x 4 = 16 
5 x 5 = 25 
6 x 6 = 36 
7 x 7 = 49 
8 x 8 = 64 
9 x 9 = 81
stderr
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PHP Notice:  Undefined variable: f in /home/rh2FAI/prog.php on line 4
https://ideone.com/FkVwRl
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
secret

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