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  1. <?php
  2.  
  3. error_reporting(-1);
  4. mb_internal_encoding('utf-8');
  5.  
  6. $text = "zxcvbnmnbvcxz";
  7.  
  8. $noSpaces = str_replace(" ", "", $text);
  9. $toLower = mb_strtolower($noSpaces);
  10.  
  11. $length = mb_strlen($toLower);
  12. $half = floor($length / 2);
  13.  
  14. for($i=0; $i<=$half; $i++){
  15. 	$sSymbol = mb_substr($toLower, $i, 1);
  16. 	$eSymbol = mb_substr($toLower, $length-1-$i, 1);
  17. 	echo "{$sSymbol}\t {$eSymbol}\t {$i}\t {-$i}\n";
  18. 	}
Success #stdin #stdout 0.01s 20568KB
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stdin
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Standard input is empty
stdout
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z	 z	 0	 {-0}
x	 x	 1	 {-1}
c	 c	 2	 {-2}
v	 v	 3	 {-3}
b	 b	 4	 {-4}
n	 n	 5	 {-5}
m	 m	 6	 {-6}
https://ideone.com/DS4NbH
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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