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  1. <?php
  2.  
  3. $conta = "5149.3074*{{INPUT}}^(0.0001)-5129.6906";
  4.     preg_match('^\((.*)\)^', $conta, $match);
  5.     print $match[1];
Success #stdin #stdout 0s 82944KB
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stdin
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Standard input is empty
stdout
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0.0001
https://ideone.com/aqvNo6
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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