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. As of PHP 7.4.0 supplying any invalid characters is deprecated.
The hexadecimal string to convert
The decimal representation of hex_string
The function can convert numbers that are too large to fit into the platforms int type, larger values are returned as float in that case.
|7.4.0||Passing invalid characters will now generate a deprecation notice. The result will still be computed as if the invalid characters did not exist.|