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  1. <?php
  2.  
  3. $FLAG="abcd";
  4.  
  5.  
  6. function encode($value)
  7. { 
  8. 	$data = ''; 
  9. 	for($i = 0; $i < strlen($value); $i++){ 
  10. 		$temp = ord(substr($value, i, 1)) ^ 125; 
  11. 		while(strlen($temp) < 2){
  12. 			$temp = '0' . $temp;
  13. 		}
  14. 		$data = (string)$data . $temp; 
  15. 	} 
  16. 	return bin2hex(base64_decode($data)); 
  17. }
  18. 	printf("flag{%s}", strrev(encode($FLAG)));
  19. ?>
Success #stdin #stdout #stderr 0.01s 82880KB
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stdin
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Standard input is empty
stdout
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flag{9bd57e67d9bd57e67d}
stderr
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PHP Notice:  Use of undefined constant i - assumed 'i' in /home/FhLpzU/prog.php on line 10
PHP Warning:  substr() expects parameter 2 to be integer, string given in /home/FhLpzU/prog.php on line 10
PHP Notice:  Use of undefined constant i - assumed 'i' in /home/FhLpzU/prog.php on line 10
PHP Warning:  substr() expects parameter 2 to be integer, string given in /home/FhLpzU/prog.php on line 10
PHP Notice:  Use of undefined constant i - assumed 'i' in /home/FhLpzU/prog.php on line 10
PHP Warning:  substr() expects parameter 2 to be integer, string given in /home/FhLpzU/prog.php on line 10
PHP Notice:  Use of undefined constant i - assumed 'i' in /home/FhLpzU/prog.php on line 10
PHP Warning:  substr() expects parameter 2 to be integer, string given in /home/FhLpzU/prog.php on line 10
https://ideone.com/2Aa5u9
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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