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  1. <?php
  2. function convert($number)
  3. {
  4.    $matches = Array();
  5.    if (preg_match('/(\d+(?:\.\d+)?)E(-?\d+)/i', $number, $matches)) {
  6.       $number = (float)$matches[1] * pow(10, (int)$matches[2]);
  7.    }
  8.  
  9.    return $number;
  10. }
  11.  
  12. var_dump(convert("9.018E-14"));
  13. var_dump(convert("9.018E-13"));
  14. var_dump(convert("901.8E-14"));
  15. var_dump(convert("901.8E-13"));
  16. var_dump(convert("901.8"));
  17. ?>
Success #stdin #stdout 0.01s 20520KB
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Standard input is empty
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float(9.018E-14)
float(9.018E-13)
float(9.018E-12)
float(9.018E-11)
string(5) "901.8"
https://ideone.com/5MA6I5
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
secret

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