Online PHP editor | rfc for rrPSc

@ 2013-08-09T18:16:23Z

<?php

class SudokuSolver
{
    const NUMBERS = "123456789";
    protected $sudokuColumns;

    public function __construct ($sudoku) 
    {
		$this->sudokuColumns = $sudoku;
    }


    // could be static as well
    public function printOut ($sudoku)
    {
		foreach ($sudoku as $column) {
			foreach ($column as $cell) {
    			echo "|";
                if (null !== $cell) {
					echo $cell;
        		} else {
            		echo " ";
        		}
			}
    		echo "|\n";
		}
    }

    public function solve()
    {
        $this->checkConsistenz();
    }

    protected function checkConsistenz () 
    {
        $columns = $this->sudokuColumns;
        // check rows -> own method
        $rows = array();
		foreach ($columns as $columnIndex => $column) {
			foreach ($column as $rowIndex => $cell) {
				$rows[$rowIndex][$columnIndex] = $cell;
			}
            //$this->printOut($rows);
		}
        foreach ($rows as $rowIndex => $row) {
            var_export($this->checkRow($rowIndex,$row));
        }
    }

    protected function checkRow ($rowIndex, $row)
    {
        $numbers = self::NUMBERS;
		echo "checking $rowIndex..\n";
        foreach ($row as $column) {
            echo "$column , $numbers\n";
            if (false === strpos($column,$numbers)) 
            {
                return false;
            }
            $numbers = str_replace($col,'',$numbers);
        }
        return true;
    }

}

$sudoku = array();
$sudoku[] = array(null,3,null, null,null,null, null,null,null);
$sudoku[] = array(null,null,null, 1,9,5, null,null,null);
$sudoku[] = array(null,null,8, null,null,null, null,6,null);
$sudoku[] = array(8,null,null, null,6,null, null,null,null);
$sudoku[] = array(4,null,null, 8,null,null, null,null,1);
$sudoku[] = array(null,null,null ,null,2,null, null,null,null);
$sudoku[] = array(null,6,null, null,null,null, 2,8,null);
$sudoku[] = array(null,null,null, 4,1,9, null,null,5);
$sudoku[] = array(null,null,null, null,null,null, null,7,null);

$sudokuSolver = new SudokuSolver($sudoku);
$sudokuSolver->printOut($sudoku);
$sudokuSolver->solve($sudoku);

Output for git.master, git.master_jit, rfc.property-hooks: | |3| | | | | | | | | | | |1|9|5| | | | | | |8| | | | |6| | |8| | | |6| | | | | |4| | |8| | | | |1| | | | | |2| | | | | | |6| | | | |2|8| | | | | |4|1|9| | |5| | | | | | | | |7| | checking 0.. , 123456789 Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/rrPSc on line 57 falsechecking 1.. 3 , 123456789 falsechecking 2.. , 123456789 Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/rrPSc on line 57 falsechecking 3.. , 123456789 Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/rrPSc on line 57 falsechecking 4.. , 123456789 Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/rrPSc on line 57 falsechecking 5.. , 123456789 Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/rrPSc on line 57 falsechecking 6.. , 123456789 Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/rrPSc on line 57 falsechecking 7.. , 123456789 Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/rrPSc on line 57 falsechecking 8.. , 123456789 Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/rrPSc on line 57 false

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