Core Function Hex

Hex( <expression>, <length> )

Description

Returns a string representation of an integer type converted to hexadecimal.

Parameters

expression

The expression to convert.

length

Optional; Number of characters to be returned (up to 16) for (64-bit) integer. Characters are truncated from the left-hand side if length is too small.

If this is -1 then it will return the hex with no leading zeros (unless of course the value converts to something like 01EB)

Default: -1

Return Value

Success: Returns a string of length characters, zero-padded if necessary for integer.

Failure: Returns "" (blank string).

Remarks

The function works with numbers that fit in a 32 bit signed integer OR 64 bit signed integer.

It is best to cast numbers with (int) to make sure its going to be a int.

Example

$result = Hex(1033);
println($result); // prints "409"
 
$result = Hex(1033, 4);
println($result); // prints "0409"
 
$result = Hex(1033, 8);
println($result); // prints "00000409"

Example with cast on a $variable

$var = 1033;
$result = Hex((int)$var);
println($result); // prints "409"
 
$result = Hex((int)$var, 4);
println($result); // prints "0409"
 
$result = Hex((int)$var, 8);
println($result); // prints "00000409"