array_functions.php ➔ array_keys_camel2snake() - Code Metrics - Inspection of "array key snake_case to camelCase & camelCase to s..." - spatie/array-functions - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#6)

unknown

created 2017-02-21 07:46 UTC

array_functions.php ➔ array_keys_camel2snake() A

↳ Parent: Project

Complexity

Conditions	4
Paths	4

Size

Total Lines	13
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	4
eloc	9
nc	4
nop	1
dl	0
loc	13
rs	9.2
c	0
b	0
f	0

<?php

namespace Spatie;

/**
 * Get a random value from an array.
 *
 * @param array $array
 * @param int $numReq The amount of values to return
 *
 * @return mixed
 */
function array_rand_value(array $array, $numReq = 1)
{
    if (!count($array)) {
        return;
    }

    $keys = array_rand($array, $numReq);

    if ($numReq === 1) {
        return $array[$keys];
    }

    return array_intersect_key($array, array_flip($keys));
}

/**
 * Get a random value from an array, with the ability to skew the results.
 * Example: array_rand_weighted(['foo' => 1, 'bar' => 2]) has a 66% chance of returning bar.
 *
 * @param array $array
 *
 * @return mixed
 */
function array_rand_weighted(array $array)
{
    $options = [];

    foreach ($array as $option => $weight) {
        for ($i = 0; $i < $weight; ++$i) {
            $options[] = $option;
        }
    }

    return array_rand_value($options);
}

/**
 * Determine if all given needles are present in the haystack.
 *
 * @param array|string $needles
 * @param array $haystack
 *
 * @return bool
 */
function values_in_array($needles, array $haystack)
{
    if (!is_array($needles)) {
        $needles = [$needles];
    }

    return count(array_intersect($needles, $haystack)) === count($needles);
}

/**
 * Determine if all given needles are present in the haystack as array keys.
 *
 * @param array|string $needles
 * @param array $haystack
 *
 * @return bool
 */
function array_keys_exist($needles, array $haystack)
{
    if (!is_array($needles)) {
        return array_key_exists($needles, $haystack);
    }

    return values_in_array($needles, array_keys($haystack));
}

/**
 * Returns an array with two elements.
 *
 * Iterates over each value in the array passing them to the callback function.
 * If the callback function returns true, the current value from array is returned in the first
 * element of result array. If not, it is return in the second element of result array.
 *
 * Array keys are preserved.
 *
 * @param array $array
 * @param callable $callback
 *
 * @return array
 */
function array_split_filter(array $array, callable $callback)
{
    $passesFilter = array_filter($array, $callback);

    $negatedCallback = function ($item) use ($callback) {
        return !$callback($item);
    };

    $doesNotPassFilter = array_filter($array, $negatedCallback);

    return [$passesFilter, $doesNotPassFilter];
}

/**
 * Split an array in the given amount of pieces.
 *
 * @param array $array
 * @param int $numberOfPieces
 * @param bool $preserveKeys
 *
 * @return array
 */
function array_split(array $array, $numberOfPieces = 2, $preserveKeys = false)
{
    if (count($array) === 0) {
        return [];
    }

    $splitSize = ceil(count($array) / $numberOfPieces);

    return array_chunk($array, $splitSize, $preserveKeys);
}

/**
 * Returns an array with the unique values from all the given arrays.
 *
 * @param \array[] $arrays
 *
 * @return array
 */
function array_merge_values(array ...$arrays)
{
    $allValues = array_reduce($arrays, function ($carry, $array) {
        return array_merge($carry, $array);
    }, []);

    return array_values(array_unique($allValues));
}

/**
 * Flatten an array of arrays. The `$levels` parameter specifies how deep you want to
 * recurse in the array. If `$levels` is -1, the function will recurse infinitely.
 *
 * @param array $array
 * @param int $levels
 *
 * @return array
 */
function array_flatten(array $array, $levels = -1)
{
    if ($levels === 0) {
        return $array;
    }

    $flattened = [];

    if ($levels !== -1) {
        --$levels;
    }

    foreach ($array as $element) {
        $flattened = array_merge(
            $flattened,
            is_array($element) ? array_flatten($element, $levels) : [$element]
        );
    }

    return $flattened;
}

/**
 * recurse array key from snake_case to camelCase
 * @param array $array
 * @return  array
 */
function array_keys_snake2camel(array $array)
{
    foreach ($array as $key => &$sub) {
        if (strpos($key, '_') !== false) {
            $newKey = lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', $key))));
            $array[$newKey] = $sub;
            unset ($array[$key]);
        } elseif (is_array($sub)) {
            $sub = array_keys_snake2camel($sub);
        }
    }

    return $array;
}

/**
 * recurse array key from camelCase to snake_case
 * @param array $array
 * @return  array
 */
function array_keys_camel2snake(array $array)
{
    foreach ($array as $key => &$sub) {
        if (preg_match('/(?<!^)[A-Z]/', $key)) {
            $newKey = strtolower(preg_replace('/(?<!^)[A-Z]/', '_$0', $key));
            $array[$newKey] = $sub;
            unset($array[$key]);
        } else if (is_array($sub)) {
            $sub = array_keys_camel2snake($sub);
        }
    }
    return $array;
}



1			<?php
2
3			namespace Spatie;
4
5			/**
6			* Get a random value from an array.
7			*
8			* @param array $array
9			* @param int $numReq The amount of values to return
10			*
11			* @return mixed
12			*/
13			function array_rand_value(array $array, $numReq = 1)
14			{
15			if (!count($array)) {
16			return;
17			}
18
19			$keys = array_rand($array, $numReq);
20
21			if ($numReq === 1) {
22			return $array[$keys];
23			}
24
25			return array_intersect_key($array, array_flip($keys));
26			}
27
28			/**
29			* Get a random value from an array, with the ability to skew the results.
30			* Example: array_rand_weighted(['foo' => 1, 'bar' => 2]) has a 66% chance of returning bar.
31			*
32			* @param array $array
33			*
34			* @return mixed
35			*/
36			function array_rand_weighted(array $array)
37			{
38			$options = [];
39
40			foreach ($array as $option => $weight) {
41			for ($i = 0; $i < $weight; ++$i) {
42			$options[] = $option;
43			}
44			}
45
46			return array_rand_value($options);
47			}
48
49			/**
50			* Determine if all given needles are present in the haystack.
51			*
52			* @param array\|string $needles
53			* @param array $haystack
54			*
55			* @return bool
56			*/
57			function values_in_array($needles, array $haystack)
58			{
59			if (!is_array($needles)) {
60			$needles = [$needles];
61			}
62
63			return count(array_intersect($needles, $haystack)) === count($needles);
64			}
65
66			/**
67			* Determine if all given needles are present in the haystack as array keys.
68			*
69			* @param array\|string $needles
70			* @param array $haystack
71			*
72			* @return bool
73			*/
74			function array_keys_exist($needles, array $haystack)
75			{
76			if (!is_array($needles)) {
77			return array_key_exists($needles, $haystack);
78			}
79
80			return values_in_array($needles, array_keys($haystack));
81			}
82
83			/**
84			* Returns an array with two elements.
85			*
86			* Iterates over each value in the array passing them to the callback function.
87			* If the callback function returns true, the current value from array is returned in the first
88			* element of result array. If not, it is return in the second element of result array.
89			*
90			* Array keys are preserved.
91			*
92			* @param array $array
93			* @param callable $callback
94			*
95			* @return array
96			*/
97			function array_split_filter(array $array, callable $callback)
98			{
99			$passesFilter = array_filter($array, $callback);
100
101			$negatedCallback = function ($item) use ($callback) {
102			return !$callback($item);
103			};
104
105			$doesNotPassFilter = array_filter($array, $negatedCallback);
106
107			return [$passesFilter, $doesNotPassFilter];
108			}
109
110			/**
111			* Split an array in the given amount of pieces.
112			*
113			* @param array $array
114			* @param int $numberOfPieces
115			* @param bool $preserveKeys
116			*
117			* @return array
118			*/
119			function array_split(array $array, $numberOfPieces = 2, $preserveKeys = false)
120			{
121			if (count($array) === 0) {
122			return [];
123			}
124
125			$splitSize = ceil(count($array) / $numberOfPieces);
126
127			return array_chunk($array, $splitSize, $preserveKeys);
128			}
129
130			/**
131			* Returns an array with the unique values from all the given arrays.
132			*
133			* @param \array[] $arrays
134			*
135			* @return array
136			*/
137			function array_merge_values(array ...$arrays)
138			{
139			$allValues = array_reduce($arrays, function ($carry, $array) {
140			return array_merge($carry, $array);
141			}, []);
142
143			return array_values(array_unique($allValues));
144			}
145
146			/**
147			* Flatten an array of arrays. The `$levels` parameter specifies how deep you want to
148			* recurse in the array. If `$levels` is -1, the function will recurse infinitely.
149			*
150			* @param array $array
151			* @param int $levels
152			*
153			* @return array
154			*/
155			function array_flatten(array $array, $levels = -1)
156			{
157			if ($levels === 0) {
158			return $array;
159			}
160
161			$flattened = [];
162
163			if ($levels !== -1) {
164			--$levels;
165			}
166
167			foreach ($array as $element) {
168			$flattened = array_merge(
169			$flattened,
170			is_array($element) ? array_flatten($element, $levels) : [$element]
171			);
172			}
173
174			return $flattened;
175			}
176
177			/**
178			* recurse array key from snake_case to camelCase
179			* @param array $array
180			* @return array
181			*/
182			function array_keys_snake2camel(array $array)
183			{
184			foreach ($array as $key => &$sub) {
185			if (strpos($key, '_') !== false) {
186			$newKey = lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', $key))));
187			$array[$newKey] = $sub;
188			unset ($array[$key]);
189			} elseif (is_array($sub)) {
190			$sub = array_keys_snake2camel($sub);
191			}
192			}
193
194			return $array;
195			}
196
197			/**
198			* recurse array key from camelCase to snake_case
199			* @param array $array
200			* @return array
201			*/
202			function array_keys_camel2snake(array $array)
203			{
204			foreach ($array as $key => &$sub) {
205			if (preg_match('/(?<!^)[A-Z]/', $key)) {
206			$newKey = strtolower(preg_replace('/(?<!^)[A-Z]/', '_$0', $key));
207			$array[$newKey] = $sub;
208			unset($array[$key]);
209			} else if (is_array($sub)) {
210			$sub = array_keys_camel2snake($sub);
211			}
212			}
213			return $array;
214			}
215
216

spatie / array-functions

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Pull Request — master (#6)

array_functions.php ➔ array_keys_camel2snake() A

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