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数学 | Mathematics

hexdec

hexdec

(PHP 4, PHP 5, PHP 7)

hexdec — Hexadecimal to decimal

Description

number 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.

hexdec() will ignore any non-hexadecimal characters it encounters.

Parameters

hex_string

The hexadecimal string to convert

Return Values

The decimal representation of hex_string

Examples

Example #1 hexdec() example

<?php var_dump(hexdec("See") var_dump(hexdec("ee") // both print "int(238)" var_dump(hexdec("that") // print "int(10)" var_dump(hexdec("a0") // print "int(160)" ?>

Notes

Note: The function can convert numbers that are too large to fit into the platforms integer type, larger values are returned as float in that case.

See Also

  • dechex() - Decimal to hexadecimal

  • bindec() - Binary to decimal

  • octdec() - Octal to decimal

  • base_convert() - Convert a number between arbitrary bases

← getrandmax

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https://secure.php.net/manual/en/function.hexdec.php