ArrayHelper::getValueByPath() - Code Metrics - Inspection of "Attempt to remove of Yiisoft/Array depedency" - yiisoft/db - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#479)

by Def

created 2023-01-13 19:38 UTC

ArrayHelper::getValueByPath() C

↳ Parent: ArrayHelper

Complexity

Conditions	13
Paths	17

Size

Total Lines	44
Code Lines	24

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	24
c	1
b	0
f	0
dl	0
loc	44
rs	6.6166
cc	13
nc	17
nop	3

How to fix Complexity

<?php

declare(strict_types=1);

namespace Yiisoft\Db\Helper;

use ArrayAccess;
use Closure;

/**
 * Short implementation of ArrayHelper from Yii2
 */
class ArrayHelper {
    /**
     * Checks if the given array contains the specified key.
     * This method enhances the `array_key_exists()` function by supporting case-insensitive
     * key comparison.
     * @param string $key the key to check
     * @param ArrayAccess|array $array the array with keys to check
     * @return bool whether the array contains the specified key
     */
    public static function keyExists(string $key, ArrayAccess|array $array): bool
    {
        // Function `isset` checks key faster but skips `null`, `array_key_exists` handles this case
        // https://www.php.net/manual/en/function.array-key-exists.php#107786
        if (is_array($array) && (isset($array[$key]) || array_key_exists($key, $array))) {
            return true;
        }
        // Cannot use `array_has_key` on Objects for PHP 7.4+, therefore we need to check using [[ArrayAccess::offsetExists()]]
        return $array instanceof ArrayAccess && $array->offsetExists($key);
    }

    /**
     * Retrieves the value of an array element or object property with the given key or property name.
     * If the key does not exist in the array, the default value will be returned instead.
     * Not used when getting value from an object.
     *
     * The key may be specified in a dot format to retrieve the value of a sub-array or the property
     * of an embedded object. In particular, if the key is `x.y.z`, then the returned value would
     * be `$array['x']['y']['z']` or `$array->x->y->z` (if `$array` is an object). If `$array['x']`
     * or `$array->x` is neither an array nor an object, the default value will be returned.
     * Note that if the array already has an element `x.y.z`, then its value will be returned
     * instead of going through the sub-arrays. So it is better to be done specifying an array of key names
     * like `['x', 'y', 'z']`.
     *
     * Below are some usage examples,
     *
     * ```php
     * // working with array
     * $username = ArrayHelper::getValueByPath($_POST, 'username');
     * // working with object
     * $username = ArrayHelper::getValueByPath($user, 'username');
     * // working with anonymous function
     * $fullName = ArrayHelper::getValueByPath($user, function ($user, $defaultValue) {
     *     return $user->firstName . ' ' . $user->lastName;
     * });
     * // using dot format to retrieve the property of embedded object
     * $street = \yii\helpers\ArrayHelper::getValue($users, 'address.street');
     * // using an array of keys to retrieve the value
     * $value = \yii\helpers\ArrayHelper::getValue($versions, ['1.0', 'date']);
     * ```
     *
     * @param object|array $array array or object to extract value from
     * @param Closure|string $key key name of the array element, an array of keys or property name of the object,
     * or an anonymous function returning the value. The anonymous function signature should be:
     * `function($array, $defaultValue)`.
     * The possibility to pass an array of keys is available since version 2.0.4.
     * @param mixed|null $default the default value to be returned if the specified array key does not exist. Not used when
     * getting value from an object.
     * @return mixed the value of the element if found, default value otherwise
     */
    public static function getValueByPath(object|array $array, Closure|string $key, mixed $default = null)
    {
        if ($key instanceof Closure) {
            return $key($array, $default);
        }

        if (is_array($key)) {

            $lastKey = array_pop($key);
            foreach ($key as $keyPart) {
                $array = static::getValueByPath($array, $keyPart);
            }
            $key = $lastKey ?? '';
        }

        if (is_object($array) && property_exists($array, $key)) {

            return $array->$key;
        }
        if (static::keyExists($key, $array)) {
            return $array[$key];
        }

        if ($key && ($pos = strrpos($key, '.')) !== false) {
            $array = static::getValueByPath($array, substr($key, 0, $pos), $default);
            $key = substr($key, $pos + 1);
        }

        if (is_object($array)) {
            // this is expected to fail if the property does not exist, or __get() is not implemented
            // it is not reliably possible to check whether a property is accessible beforehand
            try {
                return $array->$key;
            } catch (\Exception $e) {
function fx() {
    try {
        doSomething();
        return true;
    }
    catch (\Exception $e) {
        return false;
    }

    return false;
}
                if ($array instanceof ArrayAccess) {
                    return $default;
                }
                throw $e;
            }
        }

        if (static::keyExists($key, $array)) {
            return $array[$key];
        }

        return $default;
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace Yiisoft\Db\Helper;
6
7			use ArrayAccess;
8			use Closure;
9
10			/**
11			* Short implementation of ArrayHelper from Yii2
12			*/
13			class ArrayHelper {
14			/**
15			* Checks if the given array contains the specified key.
16			* This method enhances the `array_key_exists()` function by supporting case-insensitive
17			* key comparison.
18			* @param string $key the key to check
19			* @param ArrayAccess\|array $array the array with keys to check
20			* @return bool whether the array contains the specified key
21			*/
22			public static function keyExists(string $key, ArrayAccess\|array $array): bool
23			{
24			// Function `isset` checks key faster but skips `null`, `array_key_exists` handles this case
25			// https://www.php.net/manual/en/function.array-key-exists.php#107786
26			if (is_array($array) && (isset($array[$key]) \|\| array_key_exists($key, $array))) {
27			return true;
28			}
29			// Cannot use `array_has_key` on Objects for PHP 7.4+, therefore we need to check using [[ArrayAccess::offsetExists()]]
30			return $array instanceof ArrayAccess && $array->offsetExists($key);
31			}
32
33			/**
34			* Retrieves the value of an array element or object property with the given key or property name.
35			* If the key does not exist in the array, the default value will be returned instead.
36			* Not used when getting value from an object.
37			*
38			* The key may be specified in a dot format to retrieve the value of a sub-array or the property
39			* of an embedded object. In particular, if the key is `x.y.z`, then the returned value would
40			* be `$array['x']['y']['z']` or `$array->x->y->z` (if `$array` is an object). If `$array['x']`
41			* or `$array->x` is neither an array nor an object, the default value will be returned.
42			* Note that if the array already has an element `x.y.z`, then its value will be returned
43			* instead of going through the sub-arrays. So it is better to be done specifying an array of key names
44			* like `['x', 'y', 'z']`.
45			*
46			* Below are some usage examples,
47			*
48			* ```php
49			* // working with array
50			* $username = ArrayHelper::getValueByPath($_POST, 'username');
51			* // working with object
52			* $username = ArrayHelper::getValueByPath($user, 'username');
53			* // working with anonymous function
54			* $fullName = ArrayHelper::getValueByPath($user, function ($user, $defaultValue) {
55			* return $user->firstName . ' ' . $user->lastName;
56			* });
57			* // using dot format to retrieve the property of embedded object
58			* $street = \yii\helpers\ArrayHelper::getValue($users, 'address.street');
59			* // using an array of keys to retrieve the value
60			* $value = \yii\helpers\ArrayHelper::getValue($versions, ['1.0', 'date']);
61			* ```
62			*
63			* @param object\|array $array array or object to extract value from
64			* @param Closure\|string $key key name of the array element, an array of keys or property name of the object,
65			* or an anonymous function returning the value. The anonymous function signature should be:
66			* `function($array, $defaultValue)`.
67			* The possibility to pass an array of keys is available since version 2.0.4.
68			* @param mixed\|null $default the default value to be returned if the specified array key does not exist. Not used when
69			* getting value from an object.
70			* @return mixed the value of the element if found, default value otherwise
71			*/
72			public static function getValueByPath(object\|array $array, Closure\|string $key, mixed $default = null)
73			{
74			if ($key instanceof Closure) {
75			return $key($array, $default);
76			}
77
78			if (is_array($key)) {
			0 ignored issues – show introduced 2023-01-13 19:40 UTC by Report Bug Copy Issue Report The condition `is_array($key)` is always `false`. Loading history...
79			$lastKey = array_pop($key);
80			foreach ($key as $keyPart) {
81			$array = static::getValueByPath($array, $keyPart);
82			}
83			$key = $lastKey ?? '';
84			}
85
86			if (is_object($array) && property_exists($array, $key)) {
			0 ignored issues – show introduced 2023-01-13 19:40 UTC by Report Bug Copy Issue Report The condition `is_object($array)` is always `false`. Loading history...
87			return $array->$key;
88			}
89			if (static::keyExists($key, $array)) {
90			return $array[$key];
91			}
92
93			if ($key && ($pos = strrpos($key, '.')) !== false) {
94			$array = static::getValueByPath($array, substr($key, 0, $pos), $default);
95			$key = substr($key, $pos + 1);
96			}
97
98			if (is_object($array)) {
99			// this is expected to fail if the property does not exist, or __get() is not implemented
100			// it is not reliably possible to check whether a property is accessible beforehand
101			try {
102			return $array->$key;
103			} catch (\Exception $e) {
			0 ignored issues – show Unused Code introduced 2023-01-13 19:40 UTC by Report Bug Copy Issue Report `catch (\Exception $e)` is not reachable. This check looks for unreachable code. It uses sophisticated control flow analysis techniques to find statements which will never be executed. Unreachable code is most often the result of `return`, `die` or `exit` statements that have been added for debug purposes. function fx() { try { doSomething(); return true; } catch (\Exception $e) { return false; } return false; } In the above example, the last `return false` will never be executed, because a return statement has already been met in every possible execution path. Loading history...
104			if ($array instanceof ArrayAccess) {
105			return $default;
106			}
107			throw $e;
108			}
109			}
110
111			if (static::keyExists($key, $array)) {
112			return $array[$key];
113			}
114
115			return $default;
116			}
117			}
118

yiisoft / db

Pull Request — master (#479)

ArrayHelper::getValueByPath() C

Complexity

Size

Duplication

Importance

How to fix Complexity

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