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<?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) { if (null === $column) { continue; } //echo "$column , $numbers\n" . var_export(strpos($numbers,$column),true); if (false === strpos($numbers,$column)) { 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 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
| |3| | | | | | | | | | | |1|9|5| | | | | | |8| | | | |6| | |8| | | |6| | | | | |4| | |8| | | | |1| | | | | |2| | | | | | |6| | | | |2|8| | | | | |4|1|9| | |5| | | | | | | | |7| | checking 0.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 truechecking 1.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 truechecking 2.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 truechecking 3.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 truechecking 4.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 truechecking 5.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 truechecking 6.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 truechecking 7.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 truechecking 8.. Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Deprecated: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated in /in/vRUNM on line 64 true
Output for 8.0.0 - 8.0.30
| |3| | | | | | | | | | | |1|9|5| | | | | | |8| | | | |6| | |8| | | |6| | | | | |4| | |8| | | | |1| | | | | |2| | | | | | |6| | | | |2|8| | | | | |4|1|9| | |5| | | | | | | | |7| | checking 0.. Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 truechecking 1.. Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 truechecking 2.. Warning: Undefined variable $col in /in/vRUNM on line 64 truechecking 3.. Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 truechecking 4.. Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 truechecking 5.. Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 truechecking 6.. Warning: Undefined variable $col in /in/vRUNM on line 64 truechecking 7.. Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 truechecking 8.. Warning: Undefined variable $col in /in/vRUNM on line 64 Warning: Undefined variable $col in /in/vRUNM on line 64 true
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
| |3| | | | | | | | | | | |1|9|5| | | | | | |8| | | | |6| | |8| | | |6| | | | | |4| | |8| | | | |1| | | | | |2| | | | | | |6| | | | |2|8| | | | | |4|1|9| | |5| | | | | | | | |7| | checking 0.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 falsechecking 1.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 falsechecking 2.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 falsechecking 3.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 falsechecking 4.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 falsechecking 5.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 falsechecking 6.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 falsechecking 7.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 falsechecking 8.. Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/vRUNM on line 60 false
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.32 - 7.3.33
| |3| | | | | | | | | | | |1|9|5| | | | | | |8| | | | |6| | |8| | | |6| | | | | |4| | |8| | | | |1| | | | | |2| | | | | | |6| | | | |2|8| | | | | |4|1|9| | |5| | | | | | | | |7| | checking 0.. falsechecking 1.. falsechecking 2.. falsechecking 3.. falsechecking 4.. falsechecking 5.. falsechecking 6.. falsechecking 7.. falsechecking 8.. false
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/vRUNM on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/vRUNM on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/vRUNM on line 5
Process exited with code 255.
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