PHP : Convert(cast) string to bigInt

Problem :

In PHP, you want to convert(cast) a string to become big integer value.

Solution :

Use GNU Multiple Precision's gmp_intval() function to convert the string to a big integer value.

For example :


 $str = "123456789123456789";
 $bigInt = gmp_init($str);

 $bigIntVal = gmp_intval($bigInt);
 echo $bigIntVal."\n";


Output :


Notes :

See on how to get GMP installed on your server.

Reference :

  See also : PHP : Convert(cast) bigInt to string

By Adam Ng

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