www.gusucode.com > Flarum PHP论坛 中文版 v0.1 beta7源码程序 > FlarumChina-master/vendor/illuminate/support/Arr.php
<?php
namespace Illuminate\Support;
use Illuminate\Support\Traits\Macroable;
class Arr
{
use Macroable;
/**
* 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;
}
/**
* Build a new array using a callback.
*
* @param array $array
* @param callable $callback
* @return array
*/
public static function build($array, callable $callback)
{
$results = [];
foreach ($array as $key => $value) {
list($innerKey, $innerValue) = call_user_func($callback, $key, $value);
$results[$innerKey] = $innerValue;
}
return $results;
}
/**
* Collapse an array of arrays into a single array.
*
* @param \ArrayAccess|array $array
* @return array
*/
public static function collapse($array)
{
$results = [];
foreach ($array as $values) {
if ($values instanceof Collection) {
$values = $values->all();
}
$results = array_merge($results, $values);
}
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 array $array
* @param string $prepend
* @return array
*/
public static function dot($array, $prepend = '')
{
$results = [];
foreach ($array as $key => $value) {
if (is_array($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 items.
*
* @param array $array
* @param array|string $keys
* @return array
*/
public static function except($array, $keys)
{
static::forget($array, $keys);
return $array;
}
/**
* Fetch a flattened array of a nested array element.
*
* @param array $array
* @param string $key
* @return array
*
* @deprecated since version 5.1. Use pluck instead.
*/
public static function fetch($array, $key)
{
foreach (explode('.', $key) as $segment) {
$results = [];
foreach ($array as $value) {
if (array_key_exists($segment, $value = (array) $value)) {
$results[] = $value[$segment];
}
}
$array = array_values($results);
}
return array_values($results);
}
/**
* Return the first element in an array passing a given truth test.
*
* @param array $array
* @param callable $callback
* @param mixed $default
* @return mixed
*/
public static function first($array, callable $callback, $default = null)
{
foreach ($array as $key => $value) {
if (call_user_func($callback, $key, $value)) {
return $value;
}
}
return value($default);
}
/**
* Return the last element in an array passing a given truth test.
*
* @param array $array
* @param callable $callback
* @param mixed $default
* @return mixed
*/
public static function last($array, callable $callback, $default = null)
{
return static::first(array_reverse($array), $callback, $default);
}
/**
* Flatten a multi-dimensional array into a single level.
*
* @param array $array
* @return array
*/
public static function flatten($array)
{
$return = [];
array_walk_recursive($array, function ($x) use (&$return) {
$return[] = $x;
});
return $return;
}
/**
* 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) {
$parts = explode('.', $key);
while (count($parts) > 1) {
$part = array_shift($parts);
if (isset($array[$part]) && is_array($array[$part])) {
$array = &$array[$part];
} else {
$parts = [];
}
}
unset($array[array_shift($parts)]);
// clean up after each pass
$array = &$original;
}
}
/**
* Get an item from an array using "dot" notation.
*
* @param array $array
* @param string $key
* @param mixed $default
* @return mixed
*/
public static function get($array, $key, $default = null)
{
if (is_null($key)) {
return $array;
}
if (isset($array[$key])) {
return $array[$key];
}
foreach (explode('.', $key) as $segment) {
if (! is_array($array) || ! array_key_exists($segment, $array)) {
return value($default);
}
$array = $array[$segment];
}
return $array;
}
/**
* Check if an item exists in an array using "dot" notation.
*
* @param array $array
* @param string $key
* @return bool
*/
public static function has($array, $key)
{
if (empty($array) || is_null($key)) {
return false;
}
if (array_key_exists($key, $array)) {
return true;
}
foreach (explode('.', $key) as $segment) {
if (! is_array($array) || ! array_key_exists($segment, $array)) {
return false;
}
$array = $array[$segment];
}
return true;
}
/**
* 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 array $array
* @param string|array $value
* @param string|array|null $key
* @return array
*/
public static function pluck($array, $value, $key = null)
{
$results = [];
list($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);
$results[$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;
}
/**
* 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 $key
* @param mixed $value
* @return array
*/
public static function set(&$array, $key, $value)
{
if (is_null($key)) {
return $array = $value;
}
$keys = explode('.', $key);
while (count($keys) > 1) {
$key = array_shift($keys);
// 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;
}
/**
* Sort the array using the given callback.
*
* @param array $array
* @param callable $callback
* @return array
*/
public static function sort($array, callable $callback)
{
return Collection::make($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;
}
/**
* Filter the array using the given callback.
*
* @param array $array
* @param callable $callback
* @return array
*/
public static function where($array, callable $callback)
{
$filtered = [];
foreach ($array as $key => $value) {
if (call_user_func($callback, $key, $value)) {
$filtered[$key] = $value;
}
}
return $filtered;
}
}