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  1. <?php
  2.     $conta = "5149.3074*{{INPUT}}^(0.0001)-5129.6906";
  3.     preg_match("/\(([^\]]*)\)/", $conta, $valor);
  4.     echo $valor[1];
  5. ?>
Success #stdin #stdout 0.01s 83072KB
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Standard input is empty
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0.0001
https://ideone.com/nHe8qK
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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