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# octdec

(PHP 3, PHP 4, PHP 5)

octdec -- Octal to decimal

## Description

number octdec ( string octal_string )

Returns the decimal equivalent of the octal number represented by the octal_string argument. The largest number that can be converted is 17777777777 or 2147483647 in decimal. As of PHP 4.1.0, this function can also convert larger numbers. It returns float in that case.

範例 1. octdec() example

`<?php echo octdec('77') . "\n"; echo octdec(decoct(45)); ?>`

The above example will output:

    63
    45

See also: decoct(), bindec(), hexdec(), and base_convert().

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