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  1. <?php
  2.  
  3. $input = 21;
  4. if ($input % 2 === 0) die("Input must be an odd number");
  5.  
  6. for ($i = 0; $i < $input; $i++) {
  7. 	for ($j = 0; $j < $input; $j++)	{
  8. 		echo (($j == $i) || ($j == $input-$i-1)) ? '*' : ' ';
  9. 	}
  10. 	echo "\n";
  11. }
Success #stdin #stdout 0.02s 52432KB
comments (?)
stdin
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Standard input is empty
stdout
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*                   *
 *                 * 
  *               *  
   *             *   
    *           *    
     *         *     
      *       *      
       *     *       
        *   *        
         * *         
          *          
         * *         
        *   *        
       *     *       
      *       *      
     *         *     
    *           *    
   *             *   
  *               *  
 *                 * 
*                   *
https://ideone.com/EFAli4
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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