<?php /* * This file is part of the overtrue/wechat. * * (c) overtrue <i@overtrue.me> * * This source file is subject to the MIT license that is bundled * with this source code in the file LICENSE. */ /** * Arr.php. * * @author overtrue <i@overtrue.me> * @copyright 2015 overtrue <i@overtrue.me> * * @see https://github.com/overtrue * @see http://overtrue.me * @see https://github.com/laravel/framework/blob/4.2/src/Illuminate/Support/Arr.php */ namespace EasyWeChat\Support; use Closure; /** * Array helper from Illuminate\Support\Arr. */ class Arr { /** * 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 \Closure $callback * * @return array */ public static function build($array, Closure $callback) { $results = []; foreach ($array as $key => $value) { list($innerKey, $innerValue) = call_user_func($callback, $key, $value); $results[$innerKey] = $innerValue; } 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, $keys) { return array_diff_key($array, array_flip((array) $keys)); } /** * Fetch a flattened array of a nested array element. * * @param array $array * @param string $key * * @return array */ public static function fetch($array, $key) { $results = []; foreach (explode('.', $key) as $segment) { $results = []; foreach ($array as $value) { $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 \Closure $callback * @param mixed $default * * @return mixed */ public static function first($array, $callback, $default = null) { foreach ($array as $key => $value) { if (call_user_func($callback, $key, $value)) { return $value; } } return $default; } /** * Return the last element in an array passing a given truth test. * * @param array $array * @param \Closure $callback * @param mixed $default * * @return mixed */ public static function last($array, $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 $keys */ public static function forget(&$array, $keys) { $original = &$array; foreach ((array) $keys as $key) { $parts = explode('.', $key); while (count($parts) > 1) { $part = array_shift($parts); if (isset($array[$part]) && is_array($array[$part])) { $array = &$array[$part]; } } unset($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 $default; } $array = $array[$segment]; } return $array; } /** * 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 $value * @param string $key * * @return array */ public static function pluck($array, $value, $key = null) { $results = []; foreach ($array as $item) { $itemValue = is_object($item) ? $item->{$value} : $item[$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 { $itemKey = is_object($item) ? $item->{$key} : $item[$key]; $results[$itemKey] = $itemValue; } } return $results; } /** * 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 Closure. * * @param array $array * @param \Closure $callback * * @return array */ public static function sort($array, Closure $callback) { $results = []; foreach ($array as $key => $value) { $results[$key] = $callback($value); } return $results; } /** * Filter the array using the given Closure. * * @param array $array * @param \Closure $callback * * @return array */ public static function where($array, Closure $callback) { $filtered = []; foreach ($array as $key => $value) { if (call_user_func($callback, $key, $value)) { $filtered[$key] = $value; } } return $filtered; } }