generation.md

PGN generation

$chess->pgn(); can accept 2 options:

• max_width for line width (movements)
• new_line default "\n"

example $chess->pgn([ 'max_width' => 40, 'new_line' => PHP_EOL ]);

change new_line to <br/> and you ready to show PGN in your html pages (y).

Example 1

<?php
use \Ryanhs\Chess\Chess;

$chess = new Chess;
echo $chess->pgn(); // return '', since there is no movements or header

Example 2

<?php
use \Ryanhs\Chess\Chess;

$chess = new Chess;
$chess->header('White', 'John');
$chess->header('Black', 'Cena');
echo $chess->pgn();

/* return something like
[White "John"]
[Black "Cena"]

*/

example 3 (black move first):

<?php
use \Ryanhs\Chess\Chess;

$chess = new Chess;
$chess->move('e4');
$fen = $chess->fen();

$chess->load($fen); // do setup with black first
$chess->move('e5');
$chess->move('Nf3');
$chess->move('Nc6');

echo $chess->pgn();

/* return something like
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1"]

1. ... e5 2. Nf3 Nc6
*/