This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.
Changes the current text color.
These parameters are integers between 0 and 255 or hexadecimals between 0x00 and 0xFF:
Value of red component
Value of green component
Value of blue component
Value of alpha component