<?php
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/*
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* This file is part of the overtrue/wechat.
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*
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* (c) overtrue <i@overtrue.me>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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namespace EasyWeChat\Kernel\Support;
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/**
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* Array helper from Illuminate\Support\Arr.
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*/
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class Arr
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{
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/**
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* Add an element to an array using "dot" notation if it doesn't exist.
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*
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* @param array $array
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* @param string $key
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* @param mixed $value
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*
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* @return array
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*/
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public static function add(array $array, $key, $value)
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{
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if (is_null(static::get($array, $key))) {
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static::set($array, $key, $value);
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}
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return $array;
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}
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/**
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* Cross join the given arrays, returning all possible permutations.
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*
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* @param array ...$arrays
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*
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* @return array
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*/
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public static function crossJoin(...$arrays)
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{
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$results = [[]];
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foreach ($arrays as $index => $array) {
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$append = [];
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foreach ($results as $product) {
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foreach ($array as $item) {
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$product[$index] = $item;
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$append[] = $product;
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}
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}
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$results = $append;
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}
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return $results;
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}
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/**
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* Divide an array into two arrays. One with keys and the other with values.
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*
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* @param array $array
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*
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* @return array
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*/
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public static function divide(array $array)
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{
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return [array_keys($array), array_values($array)];
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}
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/**
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* Flatten a multi-dimensional associative array with dots.
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*
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* @param array $array
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* @param string $prepend
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*
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* @return array
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*/
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public static function dot(array $array, $prepend = '')
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{
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$results = [];
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foreach ($array as $key => $value) {
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if (is_array($value) && !empty($value)) {
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$results = array_merge($results, static::dot($value, $prepend.$key.'.'));
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} else {
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$results[$prepend.$key] = $value;
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}
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}
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return $results;
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}
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/**
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* Get all of the given array except for a specified array of items.
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*
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* @param array $array
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* @param array|string $keys
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*
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* @return array
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*/
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public static function except(array $array, $keys)
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{
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static::forget($array, $keys);
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return $array;
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}
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/**
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* Determine if the given key exists in the provided array.
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*
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* @param array $array
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* @param string|int $key
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*
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* @return bool
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*/
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public static function exists(array $array, $key)
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{
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return array_key_exists($key, $array);
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}
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/**
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* Return the first element in an array passing a given truth test.
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*
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* @param array $array
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* @param callable|null $callback
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* @param mixed $default
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*
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* @return mixed
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*/
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public static function first(array $array, callable $callback = null, $default = null)
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{
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if (is_null($callback)) {
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if (empty($array)) {
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return $default;
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}
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foreach ($array as $item) {
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return $item;
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}
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}
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foreach ($array as $key => $value) {
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if (call_user_func($callback, $value, $key)) {
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return $value;
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}
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}
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return $default;
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}
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/**
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* Return the last element in an array passing a given truth test.
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*
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* @param array $array
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* @param callable|null $callback
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* @param mixed $default
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*
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* @return mixed
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*/
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public static function last(array $array, callable $callback = null, $default = null)
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{
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if (is_null($callback)) {
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return empty($array) ? $default : end($array);
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}
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return static::first(array_reverse($array, true), $callback, $default);
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}
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/**
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* Flatten a multi-dimensional array into a single level.
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*
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* @param array $array
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* @param int $depth
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*
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* @return array
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*/
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public static function flatten(array $array, $depth = INF)
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{
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return array_reduce($array, function ($result, $item) use ($depth) {
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$item = $item instanceof Collection ? $item->all() : $item;
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if (!is_array($item)) {
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return array_merge($result, [$item]);
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} elseif (1 === $depth) {
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return array_merge($result, array_values($item));
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}
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return array_merge($result, static::flatten($item, $depth - 1));
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}, []);
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}
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/**
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* Remove one or many array items from a given array using "dot" notation.
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*
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* @param array $array
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* @param array|string $keys
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*/
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public static function forget(array &$array, $keys)
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{
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$original = &$array;
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$keys = (array) $keys;
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if (0 === count($keys)) {
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return;
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}
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foreach ($keys as $key) {
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// if the exact key exists in the top-level, remove it
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if (static::exists($array, $key)) {
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unset($array[$key]);
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continue;
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}
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$parts = explode('.', $key);
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// clean up before each pass
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$array = &$original;
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while (count($parts) > 1) {
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$part = array_shift($parts);
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if (isset($array[$part]) && is_array($array[$part])) {
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$array = &$array[$part];
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} else {
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continue 2;
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}
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}
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unset($array[array_shift($parts)]);
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}
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}
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/**
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* Get an item from an array using "dot" notation.
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*
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* @param array $array
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* @param string $key
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* @param mixed $default
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*
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* @return mixed
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*/
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public static function get(array $array, $key, $default = null)
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{
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if (is_null($key)) {
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return $array;
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}
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if (static::exists($array, $key)) {
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return $array[$key];
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}
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foreach (explode('.', $key) as $segment) {
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if (static::exists($array, $segment)) {
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$array = $array[$segment];
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} else {
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return $default;
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}
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}
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return $array;
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}
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/**
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* Check if an item or items exist in an array using "dot" notation.
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*
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* @param array $array
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* @param string|array $keys
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*
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* @return bool
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*/
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public static function has(array $array, $keys)
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{
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if (is_null($keys)) {
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return false;
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}
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$keys = (array) $keys;
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if (empty($array)) {
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return false;
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}
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if ($keys === []) {
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return false;
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}
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foreach ($keys as $key) {
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$subKeyArray = $array;
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if (static::exists($array, $key)) {
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continue;
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}
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foreach (explode('.', $key) as $segment) {
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if (static::exists($subKeyArray, $segment)) {
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$subKeyArray = $subKeyArray[$segment];
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} else {
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return false;
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}
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}
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}
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return true;
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}
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/**
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* Determines if an array is associative.
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*
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* An array is "associative" if it doesn't have sequential numerical keys beginning with zero.
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*
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* @param array $array
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*
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* @return bool
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*/
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public static function isAssoc(array $array)
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{
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$keys = array_keys($array);
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return array_keys($keys) !== $keys;
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}
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/**
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* Get a subset of the items from the given array.
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*
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* @param array $array
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* @param array|string $keys
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*
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* @return array
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*/
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public static function only(array $array, $keys)
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{
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return array_intersect_key($array, array_flip((array) $keys));
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}
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/**
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* Push an item onto the beginning of an array.
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*
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* @param array $array
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* @param mixed $value
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* @param mixed $key
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*
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* @return array
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*/
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public static function prepend(array $array, $value, $key = null)
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{
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if (is_null($key)) {
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array_unshift($array, $value);
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} else {
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$array = [$key => $value] + $array;
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}
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return $array;
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}
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/**
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* Get a value from the array, and remove it.
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*
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* @param array $array
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* @param string $key
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* @param mixed $default
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*
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* @return mixed
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*/
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public static function pull(array &$array, $key, $default = null)
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{
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$value = static::get($array, $key, $default);
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static::forget($array, $key);
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return $value;
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}
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/**
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* Get a 1 value from an array.
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*
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* @param array $array
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* @param int|null $amount
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*
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* @return mixed
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*
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* @throws \InvalidArgumentException
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*/
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public static function random(array $array, int $amount = null)
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{
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if (is_null($amount)) {
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return $array[array_rand($array)];
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}
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$keys = array_rand($array, $amount);
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$results = [];
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foreach ((array) $keys as $key) {
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$results[] = $array[$key];
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}
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return $results;
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}
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/**
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* Set an array item to a given value using "dot" notation.
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*
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* If no key is given to the method, the entire array will be replaced.
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*
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* @param array $array
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* @param string $key
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* @param mixed $value
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*
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* @return array
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*/
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public static function set(array &$array, string $key, $value)
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{
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$keys = explode('.', $key);
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while (count($keys) > 1) {
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$key = array_shift($keys);
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// If the key doesn't exist at this depth, we will just create an empty array
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// to hold the next value, allowing us to create the arrays to hold final
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// values at the correct depth. Then we'll keep digging into the array.
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if (!isset($array[$key]) || !is_array($array[$key])) {
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$array[$key] = [];
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}
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$array = &$array[$key];
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}
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$array[array_shift($keys)] = $value;
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return $array;
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}
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/**
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* Filter the array using the given callback.
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*
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* @param array $array
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* @param callable $callback
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*
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* @return array
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*/
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public static function where(array $array, callable $callback)
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{
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return array_filter($array, $callback, ARRAY_FILTER_USE_BOTH);
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}
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/**
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* If the given value is not an array, wrap it in one.
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*
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* @param mixed $value
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*
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* @return array
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*/
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public static function wrap($value)
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{
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return !is_array($value) ? [$value] : $value;
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}
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}
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