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<?php
namespace Illuminate\Support;
use ArrayAccess;
use Illuminate\Support\Traits\Macroable;
use InvalidArgumentException;
class Arr
{
use Macroable;
/**
* Determine whether the given value is array accessible.
*
* @param mixed $value
* @return bool
*/
public static function accessible($value)
{
return is_array($value) || $value instanceof ArrayAccess;
}
/**
* Add an element to an array using "dot" notation if it doesn't exist.
*
* @param array $array
* @param string $key
* @param mixed $value
* @return array
*/
public static function add($array, $key, $value)
{
if (is_null(static::get($array, $key))) {
static::set($array, $key, $value);
}
return $array;
}
/**
* Collapse an array of arrays into a single array.
*
* @param iterable $array
* @return array
*/
public static function collapse($array)
{
$results = [];
foreach ($array as $values) {
if ($values instanceof Collection) {
$values = $values->all();
} elseif (! is_array($values)) {
continue;
}
$results[] = $values;
}
return array_merge([], ...$results);
}
/**
* Cross join the given arrays, returning all possible permutations.
*
* @param iterable ...$arrays
* @return array
*/
public static function crossJoin(...$arrays)
{
$results = [[]];
foreach ($arrays as $index => $array) {
$append = [];
foreach ($results as $product) {
foreach ($array as $item) {
$product[$index] = $item;
$append[] = $product;
}
}
$results = $append;
}
return $results;
}
/**
* Divide an array into two arrays. One with keys and the other with values.
*
* @param array $array
* @return array
*/
public static function divide($array)
{
return [array_keys($array), array_values($array)];
}
/**
* Flatten a multi-dimensional associative array with dots.
*
* @param iterable $array
* @param string $prepend
* @return array
*/
public static function dot($array, $prepend = '')
{
$results = [];
foreach ($array as $key => $value) {
if (is_array($value) && ! empty($value)) {
$results = array_merge($results, static::dot($value, $prepend.$key.'.'));
} else {
$results[$prepend.$key] = $value;
}
}
return $results;
}
/**
* Get all of the given array except for a specified array of keys.
*
* @param array $array
* @param array|string $keys
* @return array
*/
public static function except($array, $keys)
{
static::forget($array, $keys);
return $array;
}
/**
* Determine if the given key exists in the provided array.
*
* @param \ArrayAccess|array $array
* @param string|int $key
* @return bool
*/
public static function exists($array, $key)
{
if ($array instanceof ArrayAccess) {
return $array->offsetExists($key);
}
return array_key_exists($key, $array);
}
/**
* Return the first element in an array passing a given truth test.
*
* @param iterable $array
* @param callable|null $callback
* @param mixed $default
* @return mixed
*/
public static function first($array, callable $callback = null, $default = null)
{
if (is_null($callback)) {
if (empty($array)) {
return value($default);
}
foreach ($array as $item) {
return $item;
}
}
foreach ($array as $key => $value) {
if ($callback($value, $key)) {
return $value;
}
}
return value($default);
}
/**
* Return the last element in an array passing a given truth test.
*
* @param array $array
* @param callable|null $callback
* @param mixed $default
* @return mixed
*/
public static function last($array, callable $callback = null, $default = null)
{
if (is_null($callback)) {
return empty($array) ? value($default) : end($array);
}
return static::first(array_reverse($array, true), $callback, $default);
}
/**
* Flatten a multi-dimensional array into a single level.
*
* @param iterable $array
* @param int $depth
* @return array
*/
public static function flatten($array, $depth = INF)
{
$result = [];
foreach ($array as $item) {
$item = $item instanceof Collection ? $item->all() : $item;
if (! is_array($item)) {
$result[] = $item;
} else {
$values = $depth === 1
? array_values($item)
: static::flatten($item, $depth - 1);
foreach ($values as $value) {
$result[] = $value;
}
}
}
return $result;
}
/**
* Remove one or many array items from a given array using "dot" notation.
*
* @param array $array
* @param array|string $keys
* @return void
*/
public static function forget(&$array, $keys)
{
$original = &$array;
$keys = (array) $keys;
if (count($keys) === 0) {
return;
}
foreach ($keys as $key) {
// if the exact key exists in the top-level, remove it
if (static::exists($array, $key)) {
unset($array[$key]);
continue;
}
$parts = explode('.', $key);
// clean up before each pass
$array = &$original;
while (count($parts) > 1) {
$part = array_shift($parts);
if (isset($array[$part]) && is_array($array[$part])) {
$array = &$array[$part];
} else {
continue 2;
}
}
unset($array[array_shift($parts)]);
}
}
/**
* Get an item from an array using "dot" notation.
*
* @param \ArrayAccess|array $array
* @param string|int|null $key
* @param mixed $default
* @return mixed
*/
public static function get($array, $key, $default = null)
{
if (! static::accessible($array)) {
return value($default);
}
if (is_null($key)) {
return $array;
}
if (static::exists($array, $key)) {
return $array[$key];
}
if (strpos($key, '.') === false) {
return $array[$key] ?? value($default);
}
foreach (explode('.', $key) as $segment) {
if (static::accessible($array) && static::exists($array, $segment)) {
$array = $array[$segment];
} else {
return value($default);
}
}
return $array;
}
/**
* Check if an item or items exist in an array using "dot" notation.
*
* @param \ArrayAccess|array $array
* @param string|array $keys
* @return bool
*/
public static function has($array, $keys)
{
$keys = (array) $keys;
if (! $array || $keys === []) {
return false;
}
foreach ($keys as $key) {
$subKeyArray = $array;
if (static::exists($array, $key)) {
continue;
}
foreach (explode('.', $key) as $segment) {
if (static::accessible($subKeyArray) && static::exists($subKeyArray, $segment)) {
$subKeyArray = $subKeyArray[$segment];
} else {
return false;
}
}
}
return true;
}
/**
* Determine if any of the keys exist in an array using "dot" notation.
*
* @param \ArrayAccess|array $array
* @param string|array $keys
* @return bool
*/
public static function hasAny($array, $keys)
{
if (is_null($keys)) {
return false;
}
$keys = (array) $keys;
if (! $array) {
return false;
}
if ($keys === []) {
return false;
}
foreach ($keys as $key) {
if (static::has($array, $key)) {
return true;
}
}
return false;
}
/**
* Determines if an array is associative.
*
* An array is "associative" if it doesn't have sequential numerical keys beginning with zero.
*
* @param array $array
* @return bool
*/
public static function isAssoc(array $array)
{
$keys = array_keys($array);
return array_keys($keys) !== $keys;
}
/**
* Get a subset of the items from the given array.
*
* @param array $array
* @param array|string $keys
* @return array
*/
public static function only($array, $keys)
{
return array_intersect_key($array, array_flip((array) $keys));
}
/**
* Pluck an array of values from an array.
*
* @param iterable $array
* @param string|array $value
* @param string|array|null $key
* @return array
*/
public static function pluck($array, $value, $key = null)
{
$results = [];
[$value, $key] = static::explodePluckParameters($value, $key);
foreach ($array as $item) {
$itemValue = data_get($item, $value);
// If the key is "null", we will just append the value to the array and keep
// looping. Otherwise we will key the array using the value of the key we
// received from the developer. Then we'll return the final array form.
if (is_null($key)) {
$results[] = $itemValue;
} else {
$itemKey = data_get($item, $key);
if (is_object($itemKey) && method_exists($itemKey, '__toString')) {
$itemKey = (string) $itemKey;
}
$results[$itemKey] = $itemValue;
}
}
return $results;
}
/**
* Explode the "value" and "key" arguments passed to "pluck".
*
* @param string|array $value
* @param string|array|null $key
* @return array
*/
protected static function explodePluckParameters($value, $key)
{
$value = is_string($value) ? explode('.', $value) : $value;
$key = is_null($key) || is_array($key) ? $key : explode('.', $key);
return [$value, $key];
}
/**
* Push an item onto the beginning of an array.
*
* @param array $array
* @param mixed $value
* @param mixed $key
* @return array
*/
public static function prepend($array, $value, $key = null)
{
if (is_null($key)) {
array_unshift($array, $value);
} else {
$array = [$key => $value] + $array;
}
return $array;
}
/**
* Get a value from the array, and remove it.
*
* @param array $array
* @param string $key
* @param mixed $default
* @return mixed
*/
public static function pull(&$array, $key, $default = null)
{
$value = static::get($array, $key, $default);
static::forget($array, $key);
return $value;
}
/**
* Get one or a specified number of random values from an array.
*
* @param array $array
* @param int|null $number
* @return mixed
*
* @throws \InvalidArgumentException
*/
public static function random($array, $number = null)
{
$requested = is_null($number) ? 1 : $number;
$count = count($array);
if ($requested > $count) {
throw new InvalidArgumentException(
"You requested {$requested} items, but there are only {$count} items available."
);
}
if (is_null($number)) {
return $array[array_rand($array)];
}
if ((int) $number === 0) {
return [];
}
$keys = array_rand($array, $number);
$results = [];
foreach ((array) $keys as $key) {
$results[] = $array[$key];
}
return $results;
}
/**
* Set an array item to a given value using "dot" notation.
*
* If no key is given to the method, the entire array will be replaced.
*
* @param array $array
* @param string|null $key
* @param mixed $value
* @return array
*/
public static function set(&$array, $key, $value)
{
if (is_null($key)) {
return $array = $value;
}
$keys = explode('.', $key);
foreach ($keys as $i => $key) {
if (count($keys) === 1) {
break;
}
unset($keys[$i]);
// If the key doesn't exist at this depth, we will just create an empty array
// to hold the next value, allowing us to create the arrays to hold final
// values at the correct depth. Then we'll keep digging into the array.
if (! isset($array[$key]) || ! is_array($array[$key])) {
$array[$key] = [];
}
$array = &$array[$key];
}
$array[array_shift($keys)] = $value;
return $array;
}
/**
* Shuffle the given array and return the result.
*
* @param array $array
* @param int|null $seed
* @return array
*/
public static function shuffle($array, $seed = null)
{
if (is_null($seed)) {
shuffle($array);
} else {
mt_srand($seed);
shuffle($array);
mt_srand();
}
return $array;
}
/**
* Sort the array using the given callback or "dot" notation.
*
* @param array $array
* @param callable|string|null $callback
* @return array
*/
public static function sort($array, $callback = null)
{
return Collection::make($array)->sortBy($callback)->all();
}
/**
* Recursively sort an array by keys and values.
*
* @param array $array
* @return array
*/
public static function sortRecursive($array)
{
foreach ($array as &$value) {
if (is_array($value)) {
$value = static::sortRecursive($value);
}
}
if (static::isAssoc($array)) {
ksort($array);
} else {
sort($array);
}
return $array;
}
/**
* Convert the array into a query string.
*
* @param array $array
* @return string
*/
public static function query($array)
{
return http_build_query($array, '', '&', PHP_QUERY_RFC3986);
}
/**
* Filter the array using the given callback.
*
* @param array $array
* @param callable $callback
* @return array
*/
public static function where($array, callable $callback)
{
return array_filter($array, $callback, ARRAY_FILTER_USE_BOTH);
}
/**
* If the given value is not an array and not null, wrap it in one.
*
* @param mixed $value
* @return array
*/
public static function wrap($value)
{
if (is_null($value)) {
return [];
}
return is_array($value) ? $value : [$value];
}
}
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