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binary_to_decimal

Language/Type: PHP binary mod parameters while loops
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Write a function named binary_to_decimal that accepts an integer parameter whose digits are meant to represent binary (base-2) digits, and returns an integer of that number's representation in decimal (base-10).

For example, the call of binary_to_decimal(101011) should return 43.

Constraints:

  • Do not use a string in your solution.
Function: Write a PHP function as described, not a complete program.

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