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# hexdec

(PHP 3, PHP 4 )

hexdec -- Hexadecimal to decimal

## Description

int hexdec ( string hex_string)

Returns the decimal equivalent of the hexadecimal number represented by the `hex_string` argument. hexdec() converts a hexadecimal string to a decimal number. The largest number that can be converted is 7fffffff or 2147483647 in decimal.

hexdec() will replace of any non-hexadecimal characters it encounters by `0`. This way, all left zeros are ignored, but right zeros will be valued.

Example 1. hexdec() example
    var_dump(hexdec("See"));
    var_dump(hexdec("ee"));
    // both prints "int(238)"

    var_dump(hexdec("that"));
    var_dump(hexdec("a0"));
    // both prints int(160)

See also dechex().

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