yiisoft/yii2

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framework/BaseYii.php

Summary

Maintainability
B
5 hrs
Test Coverage

The class BaseYii has an overall complexity of 64 which is very high. The configured complexity threshold is 50.
Open

class BaseYii
{
    /**
     * @var array class map used by the Yii autoloading mechanism.
     * The array keys are the class names (without leading backslashes), and the array values
Severity: Minor
Found in framework/BaseYii.php by phpmd

The class BaseYii has 12 public methods. Consider refactoring BaseYii to keep number of public methods under 10.
Open

class BaseYii
{
    /**
     * @var array class map used by the Yii autoloading mechanism.
     * The array keys are the class names (without leading backslashes), and the array values
Severity: Minor
Found in framework/BaseYii.php by phpmd

TooManyPublicMethods

Since: 0.1

A class with too many public methods is probably a good suspect for refactoring, in order to reduce its complexity and find a way to have more fine grained objects.

By default it ignores methods starting with 'get' or 'set'.

Example

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

Function setAlias has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
Open

    public static function setAlias($alias, $path)
    {
        if (strncmp($alias, '@', 1)) {
            $alias = '@' . $alias;
        }
Severity: Minor
Found in framework/BaseYii.php - About 2 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function autoload has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
Open

    public static function autoload($className)
    {
        if (isset(static::$classMap[$className])) {
            $classFile = static::$classMap[$className];
            if (strncmp($classFile, '@', 1) === 0) {
Severity: Minor
Found in framework/BaseYii.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function getAlias has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
Open

    public static function getAlias($alias, $throwException = true)
    {
        if (strncmp($alias, '@', 1) !== 0) {
            // not an alias
            return $alias;
Severity: Minor
Found in framework/BaseYii.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function getRootAlias has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
Open

    public static function getRootAlias($alias)
    {
        $pos = strpos($alias, '/');
        $root = $pos === false ? $alias : substr($alias, 0, $pos);

Severity: Minor
Found in framework/BaseYii.php - About 45 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

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

    public static function autoload($className)
    {
        if (isset(static::$classMap[$className])) {
            $classFile = static::$classMap[$className];
            if (strncmp($classFile, '@', 1) === 0) {
Severity: Minor
Found in framework/BaseYii.php by phpmd

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

The method setAlias() has a Cyclomatic Complexity of 12. The configured cyclomatic complexity threshold is 10.
Open

    public static function setAlias($alias, $path)
    {
        if (strncmp($alias, '@', 1)) {
            $alias = '@' . $alias;
        }
Severity: Minor
Found in framework/BaseYii.php by phpmd

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

Avoid using undefined variables such as '$aliases' which will lead to PHP notices.
Open

                unset(static::$aliases[$root][$alias]);
Severity: Minor
Found in framework/BaseYii.php by phpmd

UndefinedVariable

Since: 2.8.0

Detects when a variable is used that has not been defined before.

Example

class Foo
{
    private function bar()
    {
        // $message is undefined
        echo $message;
    }
}

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

Avoid using undefined variables such as '$aliases' which will lead to PHP notices.
Open

                static::$aliases[$root][$alias] = $path;
Severity: Minor
Found in framework/BaseYii.php by phpmd

UndefinedVariable

Since: 2.8.0

Detects when a variable is used that has not been defined before.

Example

class Foo
{
    private function bar()
    {
        // $message is undefined
        echo $message;
    }
}

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

The method getAlias has a boolean flag argument $throwException, which is a certain sign of a Single Responsibility Principle violation.
Open

    public static function getAlias($alias, $throwException = true)
Severity: Minor
Found in framework/BaseYii.php by phpmd

BooleanArgumentFlag

Since: 1.4.0

A boolean flag argument is a reliable indicator for a violation of the Single Responsibility Principle (SRP). You can fix this problem by extracting the logic in the boolean flag into its own class or method.

Example

class Foo {
    public function bar($flag = true) {
    }
}

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

Avoid unused local variables such as '$path'.
Open

            foreach (static::$aliases[$root] as $name => $path) {
Severity: Minor
Found in framework/BaseYii.php by phpmd

UnusedLocalVariable

Since: 0.2

Detects when a local variable is declared and/or assigned, but not used.

Example

class Foo {
    public function doSomething()
    {
        $i = 5; // Unused
    }
}

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

Avoid using short method names like BaseYii::t(). The configured minimum method name length is 2.
Open

    public static function t($category, $message, $params = [], $language = null)
    {
        if (static::$app !== null) {
            return static::$app->getI18n()->translate($category, $message, $params, $language ?: static::$app->language);
        }
Severity: Minor
Found in framework/BaseYii.php by phpmd

ShortMethodName

Since: 0.2

Detects when very short method names are used.

Example

class ShortMethod {
    public function a( $index ) { // Violation
    }
}

Source https://phpmd.org/rules/naming.html#shortmethodname

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