Micoolcoder verification code for PHP

* Support custom parameter description:
* first parameter
* CS: Simplified Chinese
* CT: Traditional Chinese
* E: Big and small English
* e: lowercase English
* D: number
* Ee: uppercase and lowercase English
* EeD: large and small English numbers
* ED: uppercase numbers
* eD: lowercase Chinese
* EUD: English digital optimization
* Second: font size
* Third: Random character length
* Fourth: Font selection 1: Songti 2: Subordinate 3: Yahei 4: English font 5: English font 6: English font
* Fifth: Fill in the font color with hexadecimal color and install its color display. If it is the parameter "X", it will be a random color.
* Sixth: Fill in the corresponding value if the positive number is tilted clockwise, and the negative number is counterclockwise.
* Seventh: Background color. Fill in the hexadecimal color to install its color display. If you fill in "img", it means using the background library picture as the background.
* Eighth: Picture width
* Ninth: Picture height
* Tenth: Output format
* Eleven: R represents arc interference, L represents line interference, D represents point interference, The status of G does not take effect, and the effect can be accumulated
* 12: Number of interference points
* Thirteen: number of interference lines
* Fourteen: Font size interference
* Fifteen: Exclude strings participating in the random column
* 16: Session location default means using the default location of your own PHP environment
* Seventeen: Session name  
* Eighteen: Session time

Download address: https://github.com/micool/safecode The download is slightly larger, nearly 60M, mainly because the font accounts for 99% of the volume. This version is fully Chinese-supported.