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  1. <?php
  2.  
  3. $value = 12343525.34541;
  4. $left = floor(log10($value))+1;
  5. echo($left);
  6.  
  7. $num = floatval($value); 
  8. $right = 0;
  9.  
  10. while($num != round($num, $right)) {
  11.   $right++;
  12. }
  13.  
  14. echo($right);
Success #stdin #stdout 0.01s 20520KB
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https://ideone.com/7BnsR3
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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