PHP: Why the 'abs' function returns a wrong number if it begins with zero?

StackOverflow https://stackoverflow.com/questions/2674618

  •  28-09-2019
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Question

The code "abs(070000)" returns 28672, but the code "abs(70000)" returns 70000.

Did the zero at the beginning means that the number is interpreted as hex?

Thank you!

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Solution

Numbers beginning by zero are interpreted as octal.

See php documentation.

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