chippyash/Matrix

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Avoid assigning values to variables in if clauses and the like (line '436', column '26').
Open

    protected function normalize($default)
    {
        if ($this->is('empty')) {
            return;
        }
Severity: Minor
Found in src/Chippyash/Matrix/Matrix.php by phpmd

IfStatementAssignment

Since: 2.7.0

Assignments in if clauses and the like are considered a code smell. Assignments in PHP return the right operand as their result. In many cases, this is an expected behavior, but can lead to many difficult to spot bugs, especially when the right operand could result in zero, null or an empty string and the like.

Example

class Foo
{
    public function bar($flag)
    {
        if ($foo = 'bar') { // possible typo
            // ...
        }
        if ($baz = 0) { // always false
            // ...
        }
    }
}

Source http://phpmd.org/rules/cleancode.html#ifstatementassignment

Avoid unused parameters such as '$extra'.
Open

    protected function doTransform(Matrix $mA, $extra = null)

UnusedFormalParameter

Since: 0.2

Avoid passing parameters to methods or constructors and then not using those parameters.

Example

class Foo
{
    private function bar($howdy)
    {
        // $howdy is not used
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedformalparameter

Avoid unused parameters such as '$row'.
Open

        $fConvert = function($row, $col, $value) use ($padLen, $padString, $padType) {

UnusedFormalParameter

Since: 0.2

Avoid passing parameters to methods or constructors and then not using those parameters.

Example

class Foo
{
    private function bar($howdy)
    {
        // $howdy is not used
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedformalparameter

The method box uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

        } else {
            $width = 0;
        }

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

Avoid unused parameters such as '$msg'.
Open

    public function __construct($msg = null, $code = -1, $previous = null)

UnusedFormalParameter

Since: 0.2

Avoid passing parameters to methods or constructors and then not using those parameters.

Example

class Foo
{
    private function bar($howdy)
    {
        // $howdy is not used
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedformalparameter

The method doTransform() has an NPath complexity of 256. The configured NPath complexity threshold is 200.
Open

    protected function doTransform(Matrix $mA, $extra = null)
    {
        $this->assertMatrixIsComplete($mA);

        //simple cases

NPathComplexity

Since: 0.1

The NPath complexity of a method is the number of acyclic execution paths through that method. A threshold of 200 is generally considered the point where measures should be taken to reduce complexity.

Example

class Foo {
    function bar() {
        // lots of complicated code
    }
}

Source https://phpmd.org/rules/codesize.html#npathcomplexity

The method doTransform uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

        } else {
            if (!array_key_exists($extra, $this->rotationMatrices)) {
                throw new TransformationException('Rotation angle not supported');
            }
        }

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

The method doTransform() has an NPath complexity of 1536. The configured NPath complexity threshold is 200.
Open

    protected function doTransform(Matrix $mA, $extra = null)
    {
        /** @noinspection PhpInternalEntityUsedInspection */
        $this->assertParameterIsArray($extra, 'Second operand is not an array');

NPathComplexity

Since: 0.1

The NPath complexity of a method is the number of acyclic execution paths through that method. A threshold of 200 is generally considered the point where measures should be taken to reduce complexity.

Example

class Foo {
    function bar() {
        // lots of complicated code
    }
}

Source https://phpmd.org/rules/codesize.html#npathcomplexity

The method set() has an NPath complexity of 3888. The configured NPath complexity threshold is 200.
Open

    public function set($row, $col, $data)
    {
        if ($row < 0 || $row > $this->rows()) {
            throw new VerticeOutOfBoundsException('row', $row);
        }

NPathComplexity

Since: 0.1

The NPath complexity of a method is the number of acyclic execution paths through that method. A threshold of 200 is generally considered the point where measures should be taken to reduce complexity.

Example

class Foo {
    function bar() {
        // lots of complicated code
    }
}

Source https://phpmd.org/rules/codesize.html#npathcomplexity

The method toMatrix uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

        } else {
            return new Matrix($mArr);
        }

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

The method is uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

                } else {
                    if ($data[$row][$col] != 0) {
                        return false;
                    }
                }

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

Avoid unused parameters such as '$col'.
Open

        $fConvert = function($row, $col, $value) use ($padLen, $padString, $padType) {

UnusedFormalParameter

Since: 0.2

Avoid passing parameters to methods or constructors and then not using those parameters.

Example

class Foo
{
    private function bar($howdy)
    {
        // $howdy is not used
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedformalparameter

The method get() has an NPath complexity of 486. The configured NPath complexity threshold is 200.
Open

    public function get($row, $col)
    {
        if ($row < 0 || $row > $this->rows()) {
            throw new VerticeOutOfBoundsException('row', $row);
        }
Severity: Minor
Found in src/Chippyash/Matrix/Matrix.php by phpmd

NPathComplexity

Since: 0.1

The NPath complexity of a method is the number of acyclic execution paths through that method. A threshold of 200 is generally considered the point where measures should be taken to reduce complexity.

Example

class Foo {
    function bar() {
        // lots of complicated code
    }
}

Source https://phpmd.org/rules/codesize.html#npathcomplexity

The method test uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

        } else {
            $obj = $attribute;
        }
Severity: Minor
Found in src/Chippyash/Matrix/Matrix.php by phpmd

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

The method checkEntryEquality uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

                } else {
                    if ($dA[$i][$j] != $dB[$i][$j]) {
                        return false;
                    }
                }
Severity: Minor
Found in src/Chippyash/Matrix/Matrix.php by phpmd

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

The method __invoke uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

        } else {
            throw new \InvalidArgumentException(self::ERR_INVALID_INVOKE_ARG);
        }
Severity: Minor
Found in src/Chippyash/Matrix/Matrix.php by phpmd

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

The method doTransform uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

        } else {
            if (!array_key_exists($extra, $this->reflectionMatrices)) {
                throw new TransformationException('Reflection plane not supported');
            }
        }

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

The method doTransform() has an NPath complexity of 4096. The configured NPath complexity threshold is 200.
Open

    protected function doTransform(Matrix $mA, $extra = null)
    {
        $this->assertMatrixIsComplete($mA);

        if ($mA->is('empty')) {

NPathComplexity

Since: 0.1

The NPath complexity of a method is the number of acyclic execution paths through that method. A threshold of 200 is generally considered the point where measures should be taken to reduce complexity.

Example

class Foo {
    function bar() {
        // lots of complicated code
    }
}

Source https://phpmd.org/rules/codesize.html#npathcomplexity

The method __invoke uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

        } else {
            throw new TransformationException('Invoke method expects 0<n<3 arguments');
        }

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

The method set() has a Cyclomatic Complexity of 18. The configured cyclomatic complexity threshold is 10.
Open

    public function set($row, $col, $data)
    {
        if ($row < 0 || $row > $this->rows()) {
            throw new VerticeOutOfBoundsException('row', $row);
        }

CyclomaticComplexity

Since: 0.1

Complexity is determined by the number of decision points in a method plus one for the method entry. The decision points are 'if', 'while', 'for', and 'case labels'. Generally, 1-4 is low complexity, 5-7 indicates moderate complexity, 8-10 is high complexity, and 11+ is very high complexity.

Example

// Cyclomatic Complexity = 11
class Foo {
1   public function example() {
2       if ($a == $b) {
3           if ($a1 == $b1) {
                fiddle();
4           } elseif ($a2 == $b2) {
                fiddle();
            } else {
                fiddle();
            }
5       } elseif ($c == $d) {
6           while ($c == $d) {
                fiddle();
            }
7        } elseif ($e == $f) {
8           for ($n = 0; $n < $h; $n++) {
                fiddle();
            }
        } else {
            switch ($z) {
9               case 1:
                    fiddle();
                    break;
10              case 2:
                    fiddle();
                    break;
11              case 3:
                    fiddle();
                    break;
                default:
                    fiddle();
                    break;
            }
        }
    }
}

Source https://phpmd.org/rules/codesize.html#cyclomaticcomplexity

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