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1
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<?php |
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2
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3
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$matrix = [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ]; |
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4
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//print_r( $matrix ) . PHP_EOL; |
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5
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6
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for ( $row = 0; $row < sizeof( $matrix ); $row++ ) { |
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7
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for ( $column = 0; $column < sizeof( $matrix[0] ); $column++ ) { |
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8
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echo $matrix[$row][$column] . " "; |
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9
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} |
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10
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echo PHP_EOL; |
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11
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} |
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12
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13
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function findNeighbours ( array $matrix, int $row, int $column ) : array |
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14
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{ |
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15
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$neighbours = []; |
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16
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17
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for ( $currentRow = $row - 1; $currentRow <= $row + 1; $currentRow++ ) { |
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18
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for ( $currentColumn = $column - 1; $currentColumn <= $column + 1; $currentColumn++ ) { |
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19
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if ( isElementInRange( $currentRow, $currentColumn, $matrix ) ) { |
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20
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if ( $currentRow != $row || $currentColumn != $column ) { |
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21
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$neighbours[] = [ "row" => $currentRow, "column" => $currentColumn ]; |
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22
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} |
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23
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} |
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24
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} |
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25
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} |
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26
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27
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return $neighbours; |
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28
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} |
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29
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30
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function isElementInRange ( $row, $column, $matrix ) : bool |
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31
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{ |
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32
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$inRange = true; |
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33
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34
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if ( $row < 0 || $column < 0 ) { |
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35
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$inRange = false; |
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36
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} |
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37
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38
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if ( $row > sizeof( $matrix ) - 1 ) { |
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39
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$inRange = false; |
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40
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} |
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41
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42
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if ( $column > sizeof( $matrix[0] ) - 1 ) { |
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43
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$inRange = false; |
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44
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} |
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45
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46
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return $inRange; |
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47
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} |
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48
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49
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for ( $row = 0; $row < sizeof( $matrix ); $row++ ) { |
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50
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for ( $column = 0; $column < sizeof( $matrix[0] ); $column++ ) { |
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51
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$neighbours = findNeighbours( $matrix, $row, $column ); |
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52
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echo "neighbours for row $row, column $column are:" . PHP_EOL; |
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53
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print_r( $neighbours ) . PHP_EOL; |
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54
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} |
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55
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} |
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56
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TheCocoTeam /
source-watcher-core
