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<?php |
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/** |
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* Class Arrays |
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* |
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* @link https://www.icy2003.com/ |
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* @author icy2003 <[email protected]> |
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* @copyright Copyright (c) 2017, icy2003 |
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*/ |
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namespace icy2003\php\ihelpers; |
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use icy2003\php\C; |
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use icy2003\php\I; |
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/** |
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* 数组类 |
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* |
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* 常见数组格式的拼装和处理 |
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* |
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* @test icy2003\php_tests\ihelpers\ArraysTest |
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*/ |
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class Arrays |
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{ |
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/** |
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* 以各个元素的某字段值作为键重新指回该元素,此值对于该元素需唯一 |
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* |
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* @param array $array 元素可以为数组或者对象 |
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* @param string $index 用来作为键的某字段,不能为 null |
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* @param boolean $isMerge 是否合并相同键的项到数组,默认否(也就是后者覆盖前者) |
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* |
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* @return array |
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* |
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* @tested |
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*/ |
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public static function indexBy($array, $index, $isMerge = false) |
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{ |
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$result = []; |
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foreach ($array as $row) { |
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$indexValue = I::get($row, $index); |
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1 |
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if (null === $indexValue) { |
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return []; |
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} |
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1 |
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if (false === $isMerge) { |
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$result[$indexValue] = $row; |
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} else { |
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$result[$indexValue][] = $row; |
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} |
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} |
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return $result; |
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} |
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/** |
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* 选取数组中指定键的某几列 |
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* |
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* ``` |
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* - 简单理解就是:从数据库里查出来几条数据,只拿其中的几个属性 |
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* - 当 $dimension 为 2 时,理解为从几条数据里拿属性 |
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* - 当 $dimension 为 1 时,理解为从一条数据里拿属性 |
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* ``` |
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* |
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* @param array $array |
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* @param array $keys 某几项字段,支持 I::get 的键格式,如果是键值对,键会被设置为键 |
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* - [a, b]:查找 a 和 b |
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* - [a.b, c]:查找 a.b 和 c |
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* - [a => b]:查找 b 并且设置该项的键为 a |
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* @param integer $dimension 维度,只能为 1 或 2,默认 2,表示处理二维数组 |
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* |
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* @return array |
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* |
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* @tested |
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*/ |
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public static function columns($array, $keys = null, $dimension = 2) |
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{ |
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if (null === $keys) { |
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return $array; |
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} |
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1 |
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$result = []; |
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1 |
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if (2 === $dimension) { |
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1 |
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foreach ($array as $k => $row) { |
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1 |
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foreach ($keys as $k1 => $key) { |
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$value = I::get($row, $key); |
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if (is_numeric($k1)) { |
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$result[$k][$key] = $value; |
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} else { |
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$result[$k][$k1] = $value; |
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} |
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} |
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} |
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} |
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1 |
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if (1 === $dimension) { |
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1 |
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foreach ($keys as $k1 => $key) { |
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$value = I::get($array, $key); |
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1 |
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if (is_numeric($k1)) { |
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$result[$key] = $value; |
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} else { |
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$result[$k1] = $value; |
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} |
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} |
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} |
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1 |
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return $result; |
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} |
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/** |
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* Arrays::columns 第三参数取值 1 |
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* @ignore |
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*/ |
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public static function columns1($array, $keys = null) |
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{ |
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return self::columns($array, $keys, 1); |
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} |
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/** |
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* Arrays::columns 第三参数取值 2 |
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* @ignore |
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*/ |
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public static function columns2($array, $keys = null) |
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{ |
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return self::columns($array, $keys, 2); |
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} |
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/** |
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* 返回二维(或者更高)数组中指定键的一列的所有值 |
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* |
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* @see http://php.net/array_column |
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* |
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* ``` |
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* - 在不传入 $index 时,键将原样保持,这里已经和 array_column 功能不一致了 |
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* - 如果需要取某几项,使用 Arrays::columns |
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* - 简单理解就是:从数据库里查出来几条数据,只要其中某个属性的所有值 |
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* ``` |
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* |
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* @param array $array |
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* @param string $column 需要被取出来的字段 |
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* @param string $index 作为 index 的字段 |
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* |
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* @return array |
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* |
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* @tested |
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*/ |
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public static function column($array, $column, $index = null) |
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{ |
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$result = []; |
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foreach ($array as $key => $row) { |
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$data = I::get($row, $column); |
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2 |
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if (null === $index) { |
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$result[$key] = $data; |
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} else { |
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$result[I::get($row, $index)] = $data; |
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} |
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} |
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return $result; |
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} |
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/** |
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* 创建一个数组,用一个数组的值作为其键名,另一个数组的值作为其值 |
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* |
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* ``` |
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* - array_combine:两个数组元素个数不一致将报错 |
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* - 在两个数组元素个数不一致时,以键为准: |
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* 1.键比值多,值都被填充为 null |
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* 2.值比键多,值被舍去 |
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* ``` |
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* |
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* @see http://php.net/array_combine |
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* |
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* @param array $keys |
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* @param array $values |
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* |
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* @return array |
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* |
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* @tested |
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*/ |
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public static function combine($keys, $values) |
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{ |
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if (count($keys) == count($values)) { |
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return (array) array_combine($keys, $values); |
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} |
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$array = []; |
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foreach ($keys as $index => $key) { |
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$array[$key] = I::get($values, $index); |
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} |
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return $array; |
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} |
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/** |
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* 递归地合并多个数组 |
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* |
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* ``` |
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* - array_merge_recursive:如果有相同的键,后者会覆盖前者 |
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* - 此函数会合并两个相同键的值到一个数组里 |
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* ``` |
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* |
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* @see http://php.net/array_merge_recursive |
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* |
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* @param array $a 数组1 |
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* @param array $b 数组2(可以任意个数组) |
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* |
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* @return array |
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* |
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* @tested |
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*/ |
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public static function merge($a, $b) |
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{ |
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$args = func_get_args(); |
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37 |
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$res = array_shift($args); |
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37 |
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while (!empty($args)) { |
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37 |
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foreach (array_shift($args) as $k => $v) { |
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3 |
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if (is_int($k)) { |
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2 |
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if (array_key_exists($k, $res)) { |
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$res[] = $v; |
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} else { |
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$res[$k] = $v; |
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} |
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2 |
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} elseif (is_array($v) && isset($res[$k]) && is_array($res[$k])) { |
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$res[$k] = self::merge($res[$k], $v); |
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} else { |
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$res[$k] = $v; |
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} |
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} |
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} |
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return $res; |
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} |
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/** |
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* range 的性能优化版 |
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* |
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* @see http://php.net/manual/zh/language.generators.overview.php |
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* @version PHP >= 5.5 |
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* |
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* @param integer $start 开始 |
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* @param integer $end 结束 |
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* @param integer $step 步长 |
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* |
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* @return \Generator |
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* |
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* @tested |
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*/ |
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public static function rangeGenerator($start, $end, $step = 1) |
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{ |
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8 |
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if ($start < $end) { |
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7 |
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C::assertTrue($step > 0, '步长必须大于 0'); |
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7 |
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for ($i = $start; $i <= $end; $i += $step) { |
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7 |
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yield $i; |
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} |
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3 |
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} elseif ($start > $end) { |
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1 |
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C::assertTrue($step < 0, '步长必须小于 0'); |
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1 |
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for ($i = $start; $i >= $end; $i += $step) { |
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1 |
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yield $i; |
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} |
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} else { |
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2 |
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yield $start; |
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} |
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8 |
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} |
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/** |
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262
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* 找到符合条件的第一项 |
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* |
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* @param array $array |
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* @param callback $callback 条件回调,结果为 true 的第一项会被取出 |
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* |
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* @return mixed |
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* |
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269
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* @tested |
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*/ |
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1 |
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public static function detectFirst($array, $callback) |
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{ |
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1 |
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foreach ($array as $key => $item) { |
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1 |
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if (true === I::call($callback, [$item, $key])) { |
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1 |
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return $item; |
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} |
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} |
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1 |
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return null; |
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} |
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281
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/** |
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282
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* 找到符合条件的所有项 |
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283
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* |
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284
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* @param array $array |
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285
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* @param callback $callback 条件回调,结果为 true 的所有项会被取出 |
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* @param callback $filter 对符合条件的项进行回调处理并返回 |
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* |
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288
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* @return array |
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* |
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290
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* @tested |
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291
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*/ |
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292
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1 |
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public static function detectAll($array, $callback, $filter = null) |
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293
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{ |
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294
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1 |
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$all = []; |
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295
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1 |
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foreach ($array as $key => $item) { |
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1 |
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if (true === I::call($callback, [$item, $key])) { |
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1 |
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if (null !== $filter) { |
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1 |
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$all[$key] = I::call($filter, [$item, $key]); |
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} else { |
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300
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1 |
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$all[$key] = $item; |
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} |
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} |
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} |
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1 |
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return $all; |
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305
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} |
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306
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307
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/** |
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308
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* 返回数组的最后一个元素的键 |
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309
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* |
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310
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* - array_key_last:需要 PHP7.3.0+ 才能支持 |
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311
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* - USE_CUSTOM |
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312
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* |
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313
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* @param array $array |
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314
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* |
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315
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* @return string|null |
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316
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* |
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317
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* @tested |
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318
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*/ |
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319
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1 |
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public static function keyLast($array) |
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320
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{ |
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321
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1 |
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if (!is_array($array) || empty($array)) { |
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322
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1 |
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return null; |
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323
|
|
|
} |
|
324
|
1 |
|
if (function_exists('array_key_last') && false === I::ini('USE_CUSTOM')) { |
|
325
|
1 |
|
return array_key_last($array); |
|
326
|
|
|
} |
|
327
|
1 |
|
end($array); |
|
328
|
1 |
|
return key($array); |
|
329
|
|
|
} |
|
330
|
|
|
|
|
331
|
|
|
/** |
|
332
|
|
|
* 返回数组的第一个元素的键 |
|
333
|
|
|
* |
|
334
|
|
|
* - array_key_first:需要 PHP7.3.0+ 才能支持 |
|
335
|
|
|
* - USE_CUSTOM |
|
336
|
|
|
* |
|
337
|
|
|
* @param array $array |
|
338
|
|
|
* |
|
339
|
|
|
* @return string|null |
|
340
|
|
|
* |
|
341
|
|
|
* @tested |
|
342
|
|
|
*/ |
|
343
|
1 |
|
public static function keyFirst($array) |
|
344
|
|
|
{ |
|
345
|
1 |
|
if (!is_array($array) || empty($array)) { |
|
346
|
1 |
|
return null; |
|
347
|
|
|
} |
|
348
|
1 |
|
if (function_exists('array_key_first') && false === I::ini('USE_CUSTOM')) { |
|
349
|
1 |
|
return array_key_first($array); |
|
350
|
|
|
} |
|
351
|
1 |
|
reset($array); |
|
352
|
1 |
|
return key($array); |
|
353
|
|
|
} |
|
354
|
|
|
|
|
355
|
|
|
/** |
|
356
|
|
|
* 获取数组的维度 |
|
357
|
|
|
* |
|
358
|
|
|
* @param array $array 多维数组 |
|
359
|
|
|
* |
|
360
|
|
|
* @return integer |
|
361
|
|
|
* |
|
362
|
|
|
* @tested |
|
363
|
|
|
*/ |
|
364
|
1 |
|
public static function dimension($array) |
|
365
|
|
|
{ |
|
366
|
1 |
|
if (!is_array($array)) { |
|
367
|
1 |
|
return 0; |
|
368
|
|
|
} |
|
369
|
1 |
|
$max = 1; |
|
370
|
1 |
|
foreach ($array as $value) { |
|
371
|
1 |
|
if (is_array($value)) { |
|
372
|
1 |
|
$d = self::dimension($value) + 1; |
|
373
|
1 |
|
if ($d > $max) { |
|
374
|
1 |
|
$max = $d; |
|
375
|
|
|
} |
|
376
|
|
|
} |
|
377
|
|
|
} |
|
378
|
1 |
|
return $max; |
|
379
|
|
|
} |
|
380
|
|
|
|
|
381
|
|
|
/** |
|
382
|
|
|
* 判断数组是不是关联数组 |
|
383
|
|
|
* |
|
384
|
|
|
* @param array $array |
|
385
|
|
|
* |
|
386
|
|
|
* @return boolean |
|
387
|
|
|
* |
|
388
|
|
|
* @tested |
|
389
|
|
|
*/ |
|
390
|
1 |
|
public static function isAssoc($array) |
|
391
|
|
|
{ |
|
392
|
1 |
|
if (is_array($array)) { |
|
393
|
1 |
|
$keys = array_keys($array); |
|
394
|
1 |
|
return $keys !== array_keys($keys); |
|
395
|
|
|
} |
|
396
|
1 |
|
return false; |
|
397
|
|
|
} |
|
398
|
|
|
|
|
399
|
|
|
/** |
|
400
|
|
|
* 判断数组是不是索引数组 |
|
401
|
|
|
* |
|
402
|
|
|
* 索引数组必须是下标从 0 开始的数组,键是数字还是字符串类型的数字无所谓 |
|
403
|
|
|
* |
|
404
|
|
|
* @param array $array |
|
405
|
|
|
* |
|
406
|
|
|
* @return boolean |
|
407
|
|
|
* |
|
408
|
|
|
* @tested |
|
409
|
|
|
*/ |
|
410
|
1 |
|
public static function isIndexed($array) |
|
411
|
|
|
{ |
|
412
|
1 |
|
if (is_array($array)) { |
|
413
|
1 |
|
$keys = array_keys($array); |
|
414
|
1 |
|
return $keys === array_keys($keys); |
|
415
|
|
|
} |
|
416
|
1 |
|
return false; |
|
417
|
|
|
} |
|
418
|
|
|
|
|
419
|
|
|
/** |
|
420
|
|
|
* 返回数组的顺数第 n 个元素,其中 n >= 1 且为整数,空数组直接返回 null |
|
421
|
|
|
* |
|
422
|
|
|
* - 支持关联数组,超过数组长度会对数组长度求余后查找 |
|
423
|
|
|
* |
|
424
|
|
|
* @param array $array |
|
425
|
|
|
* @param int $pos 顺数第 n 个,默认 1 |
|
426
|
|
|
* |
|
427
|
|
|
* @return mixed |
|
428
|
|
|
* |
|
429
|
|
|
* @tested |
|
430
|
|
|
*/ |
|
431
|
3 |
|
public static function first($array, $pos = 1) |
|
432
|
|
|
{ |
|
433
|
3 |
|
if (0 === ($count = self::count($array))) { |
|
434
|
1 |
|
return null; |
|
435
|
|
|
} |
|
436
|
3 |
|
$p = $pos % $count; |
|
437
|
3 |
|
if (0 === $p) { |
|
438
|
2 |
|
$p = $count; |
|
439
|
|
|
} |
|
440
|
3 |
|
for ($i = 1; $i < $p; $i++) { |
|
441
|
1 |
|
next($array); |
|
442
|
|
|
} |
|
443
|
3 |
|
return current($array); |
|
444
|
|
|
} |
|
445
|
|
|
|
|
446
|
|
|
/** |
|
447
|
|
|
* 返回数组的倒数第 n 个元素,其中 n >= 1 且为整数,空数组直接返回 null |
|
448
|
|
|
* |
|
449
|
|
|
* - 支持关联数组,超过数组长度会对数组长度求余后查找 |
|
450
|
|
|
* |
|
451
|
|
|
* @param array $array |
|
452
|
|
|
* @param int $pos 倒数第 n 个,默认 1 |
|
453
|
|
|
* |
|
454
|
|
|
* @return mixed |
|
455
|
|
|
* |
|
456
|
|
|
* @tested |
|
457
|
|
|
*/ |
|
458
|
1 |
|
public static function last($array, $pos = 1) |
|
459
|
|
|
{ |
|
460
|
1 |
|
if (0 === ($count = self::count($array))) { |
|
461
|
1 |
|
return null; |
|
462
|
|
|
} |
|
463
|
1 |
|
$p = $pos % $count; |
|
464
|
1 |
|
if (0 === $p) { |
|
465
|
1 |
|
$p = $count; |
|
466
|
|
|
} |
|
467
|
1 |
|
end($array); |
|
468
|
1 |
|
for ($i = 1; $i < $p; $i++) { |
|
469
|
1 |
|
prev($array); |
|
470
|
|
|
} |
|
471
|
1 |
|
return current($array); |
|
472
|
|
|
} |
|
473
|
|
|
|
|
474
|
|
|
/** |
|
475
|
|
|
* 计算数组中的单元数目 |
|
476
|
|
|
* |
|
477
|
|
|
* - count:在非数组情况下,除了 null 会返回 0,其他都返回 1,囧 |
|
478
|
|
|
* - $callback 参数用于对符合条件的项做筛选 |
|
479
|
|
|
* |
|
480
|
|
|
* @param array|mixed $array 数组 |
|
481
|
|
|
* @param callback|mixed $callback 回调,返回回调值为 true 的项,如果此参数是非回调类型,表示查询和此值严格相等的项 |
|
482
|
|
|
* @param boolean $isStrict 是否为严格模式,如果为 false,回调值为 true 值的也会返回,为字符串时不使用严格比较 |
|
483
|
|
|
* |
|
484
|
|
|
* @return integer |
|
485
|
|
|
* |
|
486
|
|
|
* @tested |
|
487
|
|
|
*/ |
|
488
|
10 |
|
public static function count($array, $callback = null, $isStrict = true) |
|
489
|
|
|
{ |
|
490
|
10 |
|
$count = 0; |
|
491
|
10 |
|
if (is_array($array)) { |
|
492
|
10 |
|
if (null === $callback) { |
|
493
|
10 |
|
return count($array); |
|
494
|
|
|
} else { |
|
495
|
2 |
|
$function = $callback; |
|
496
|
2 |
|
if (false === is_callable($callback)) { |
|
497
|
|
|
$function = function ($row) use ($callback, $isStrict) { |
|
498
|
2 |
|
return true === $isStrict ? $row === $callback : $row == $callback; |
|
499
|
2 |
|
}; |
|
500
|
|
|
} |
|
501
|
2 |
|
foreach ($array as $key => $row) { |
|
502
|
2 |
|
if (true === I::call($function, [$row, $key])) { |
|
503
|
2 |
|
$count++; |
|
504
|
|
|
} |
|
505
|
|
|
} |
|
506
|
|
|
} |
|
507
|
|
|
} |
|
508
|
2 |
|
return $count; |
|
509
|
|
|
} |
|
510
|
|
|
|
|
511
|
|
|
/** |
|
512
|
|
|
* 返回指定长度的数组,不足的值设置为 null |
|
513
|
|
|
* |
|
514
|
|
|
* @param array $array |
|
515
|
|
|
* @param integer $count 指定长度 |
|
516
|
|
|
* @param callback $callback 回调参数:数组的值、数组的键 |
|
517
|
|
|
* |
|
518
|
|
|
* @return array |
|
519
|
|
|
* |
|
520
|
|
|
* @tested |
|
521
|
|
|
*/ |
|
522
|
2 |
|
public static function lists($array, $count = null, $callback = null) |
|
523
|
|
|
{ |
|
524
|
2 |
|
null === $count && $count = self::count($array); |
|
525
|
2 |
|
$arrayCount = self::count($array); |
|
526
|
2 |
|
if ($arrayCount >= $count) { |
|
527
|
2 |
|
$return = $array; |
|
528
|
|
|
} else { |
|
529
|
1 |
|
$return = self::merge($array, self::fill(0, $count - $arrayCount, null)); |
|
530
|
|
|
} |
|
531
|
2 |
|
if (null !== $callback) { |
|
532
|
1 |
|
foreach ($return as $key => $value) { |
|
533
|
1 |
|
$return[$key] = I::call($callback, [$value, $key]); |
|
534
|
|
|
} |
|
535
|
|
|
} |
|
536
|
2 |
|
return $return; |
|
537
|
|
|
} |
|
538
|
|
|
|
|
539
|
|
|
/** |
|
540
|
|
|
* 获取指定某些键的项的值 |
|
541
|
|
|
* |
|
542
|
|
|
* @param array $array |
|
543
|
|
|
* @param array|string $keys 数组或逗号字符串 |
|
544
|
|
|
* |
|
545
|
|
|
* @return array |
|
546
|
|
|
* |
|
547
|
|
|
* @tested |
|
548
|
|
|
*/ |
|
549
|
1 |
|
public static function values($array, $keys = null) |
|
550
|
|
|
{ |
|
551
|
1 |
|
return array_values(self::some($array, $keys)); |
|
552
|
|
|
} |
|
553
|
|
|
|
|
554
|
|
|
/** |
|
555
|
|
|
* 获取指定某些键的项 |
|
556
|
|
|
* |
|
557
|
|
|
* @param array $array |
|
558
|
|
|
* @param array|string $keys 数组或逗号字符串 |
|
559
|
|
|
* |
|
560
|
|
|
* @return array |
|
561
|
|
|
* |
|
562
|
|
|
* @tested |
|
563
|
|
|
*/ |
|
564
|
2 |
|
public static function some($array, $keys = null) |
|
565
|
|
|
{ |
|
566
|
2 |
|
if (null === $keys) { |
|
567
|
1 |
|
return $array; |
|
568
|
|
|
} |
|
569
|
2 |
|
$keys = Strings::toArray($keys); |
|
570
|
2 |
|
return array_intersect_key($array, array_flip($keys)); |
|
571
|
|
|
} |
|
572
|
|
|
|
|
573
|
|
|
/** |
|
574
|
|
|
* 获取指定除了某些键的项 |
|
575
|
|
|
* |
|
576
|
|
|
* @param array $array |
|
577
|
|
|
* @param array|string $keys |
|
578
|
|
|
* |
|
579
|
|
|
* @return array |
|
580
|
|
|
* |
|
581
|
|
|
* @tested |
|
582
|
|
|
*/ |
|
583
|
1 |
|
public static function exceptedKeys($array, $keys) |
|
584
|
|
|
{ |
|
585
|
1 |
|
$keys = Strings::toArray($keys); |
|
586
|
1 |
|
return array_diff_key($array, array_flip($keys)); |
|
587
|
|
|
} |
|
588
|
|
|
|
|
589
|
|
|
/** |
|
590
|
|
|
* 检查数组里是否有指定的所有键名或索引 |
|
591
|
|
|
* |
|
592
|
|
|
* - array_key_exists:检测一个指定的键 |
|
593
|
|
|
* - Arrays::keyExistsOne:检测数组里是否存在指定的某些键 |
|
594
|
|
|
* |
|
595
|
|
|
* @param array $keys 要检查的键 |
|
596
|
|
|
* @param array $array |
|
597
|
|
|
* @param array $diff 引用返回不包含的键 |
|
598
|
|
|
* |
|
599
|
|
|
* @return boolean |
|
600
|
|
|
* |
|
601
|
|
|
* @tested |
|
602
|
|
|
*/ |
|
603
|
1 |
|
public static function keyExistsAll($keys, $array, &$diff = null) |
|
604
|
|
|
{ |
|
605
|
|
|
|
|
606
|
1 |
|
return I::isEmpty($diff = array_diff($keys, array_keys($array))); |
|
607
|
|
|
} |
|
608
|
|
|
|
|
609
|
|
|
/** |
|
610
|
|
|
* 检查数组里是否有指定的某些键名或索引 |
|
611
|
|
|
* |
|
612
|
|
|
* @param array $keys 要检查的键 |
|
613
|
|
|
* @param array $array |
|
614
|
|
|
* @param array $find 引用返回包含的键 |
|
615
|
|
|
* |
|
616
|
|
|
* @return boolean |
|
617
|
|
|
* |
|
618
|
|
|
* @tested |
|
619
|
|
|
*/ |
|
620
|
1 |
|
public static function keyExistsSome($keys, $array, &$find = null) |
|
621
|
|
|
{ |
|
622
|
1 |
|
return !I::isEmpty($find = array_intersect($keys, array_keys($array))); |
|
623
|
|
|
} |
|
624
|
|
|
|
|
625
|
|
|
/** |
|
626
|
|
|
* 检查数组里是否有指定的所有值 |
|
627
|
|
|
* |
|
628
|
|
|
* @param array $values 要检查的值 |
|
629
|
|
|
* @param array $array |
|
630
|
|
|
* @param array $diff 引用返回不包含的值 |
|
631
|
|
|
* |
|
632
|
|
|
* @return boolean |
|
633
|
|
|
* |
|
634
|
|
|
* @tested |
|
635
|
|
|
*/ |
|
636
|
1 |
|
public static function valueExistsAll($values, $array, &$diff = null) |
|
637
|
|
|
{ |
|
638
|
1 |
|
return I::isEmpty($diff = array_diff($values, array_values($array))); |
|
639
|
|
|
} |
|
640
|
|
|
|
|
641
|
|
|
/** |
|
642
|
|
|
* 检查数组里是否有指定的某些值 |
|
643
|
|
|
* |
|
644
|
|
|
* @param array $values 要检查的值 |
|
645
|
|
|
* @param array $array |
|
646
|
|
|
* @param array $find 引用返回包含的值 |
|
647
|
|
|
* |
|
648
|
|
|
* @return boolean |
|
649
|
|
|
* |
|
650
|
|
|
* @tested |
|
651
|
|
|
*/ |
|
652
|
1 |
|
public static function valueExistsSome($values, $array, &$find = null) |
|
653
|
|
|
{ |
|
654
|
1 |
|
return !I::isEmpty($find = array_intersect($values, array_values($array))); |
|
655
|
|
|
} |
|
656
|
|
|
|
|
657
|
|
|
/** |
|
658
|
|
|
* 参照 PHP 的 array_combine 函数,array_combine 得到的是一行记录的格式,该函数得到多行 |
|
659
|
|
|
* |
|
660
|
|
|
* - arrays 里的每个数组会和 keys 使用 self::combine 合并,最终合并成为一个二维数组 |
|
661
|
|
|
* |
|
662
|
|
|
* @param array $keys 作为键的字段 |
|
663
|
|
|
* @param array $arrays |
|
664
|
|
|
* |
|
665
|
|
|
* @return array |
|
666
|
|
|
* |
|
667
|
|
|
* @tested |
|
668
|
|
|
*/ |
|
669
|
1 |
|
public static function combines($keys, $arrays) |
|
670
|
|
|
{ |
|
671
|
1 |
|
$result = []; |
|
672
|
1 |
|
foreach ($arrays as $k => $array) { |
|
673
|
1 |
|
$result[$k] = self::combine($keys, $array); |
|
674
|
|
|
} |
|
675
|
|
|
|
|
676
|
1 |
|
return $result; |
|
677
|
|
|
} |
|
678
|
|
|
|
|
679
|
|
|
/** |
|
680
|
|
|
* 把数组里逗号字符串拆分,并且去掉重复的部分 |
|
681
|
|
|
* |
|
682
|
|
|
* @param array $array |
|
683
|
|
|
* @param string $delimiter 可自定义分隔符,默认为英文逗号(,) |
|
684
|
|
|
* |
|
685
|
|
|
* @return array |
|
686
|
|
|
* |
|
687
|
|
|
* @tested |
|
688
|
2 |
|
*/ |
|
689
|
|
|
public static function toPart($array, $delimiter = ',') |
|
690
|
2 |
|
{ |
|
691
|
2 |
|
return array_values( |
|
692
|
2 |
|
array_filter( |
|
693
|
2 |
|
array_keys( |
|
694
|
2 |
|
array_flip( |
|
695
|
|
|
explode($delimiter, implode($delimiter, $array)) |
|
696
|
|
|
) |
|
697
|
|
|
) |
|
698
|
|
|
) |
|
699
|
|
|
); |
|
700
|
|
|
} |
|
701
|
|
|
|
|
702
|
|
|
/** |
|
703
|
|
|
* 矩阵转置 |
|
704
|
|
|
* |
|
705
|
|
|
* @param array $array 待转置的矩阵 |
|
706
|
|
|
* |
|
707
|
|
|
* @return array |
|
708
|
|
|
* |
|
709
|
|
|
* @tested |
|
710
|
1 |
|
*/ |
|
711
|
|
|
public static function transposed($array) |
|
712
|
1 |
|
{ |
|
713
|
1 |
|
$data = []; |
|
714
|
1 |
|
foreach ($array as $r => $row) { |
|
715
|
1 |
|
foreach ($row as $c => $col) { |
|
716
|
|
|
$data[$c][$r] = $col; |
|
717
|
|
|
} |
|
718
|
1 |
|
} |
|
719
|
|
|
return $data; |
|
720
|
|
|
} |
|
721
|
|
|
|
|
722
|
|
|
/** |
|
723
|
|
|
* 普通二维数组转化成 Excel 单元格二维数组 |
|
724
|
|
|
* |
|
725
|
|
|
* @param array $array |
|
726
|
|
|
* |
|
727
|
|
|
* @return array |
|
728
|
|
|
* |
|
729
|
|
|
* @tested |
|
730
|
1 |
|
*/ |
|
731
|
|
|
public static function toCellArray($array) |
|
732
|
1 |
|
{ |
|
733
|
1 |
|
$data = []; |
|
734
|
1 |
|
$rowIndex = 0; |
|
735
|
1 |
|
foreach ($array as $row) { |
|
736
|
1 |
|
$rowIndex++; |
|
737
|
1 |
|
$colIndex = 'A'; |
|
738
|
1 |
|
foreach ($row as $col) { |
|
739
|
|
|
$data[$rowIndex][$colIndex++] = $col; |
|
740
|
|
|
} |
|
741
|
1 |
|
} |
|
742
|
|
|
return $data; |
|
743
|
|
|
} |
|
744
|
|
|
|
|
745
|
|
|
/** |
|
746
|
|
|
* 返回矩阵的列数和行数 |
|
747
|
|
|
* |
|
748
|
|
|
* - 返回两个元素的一维数组,第一个元素表示矩阵的列数,第二个元素表示矩阵的行数 |
|
749
|
|
|
* |
|
750
|
|
|
* @param array $array |
|
751
|
|
|
* |
|
752
|
|
|
* @return array |
|
753
|
|
|
* |
|
754
|
|
|
* @tested |
|
755
|
2 |
|
*/ |
|
756
|
|
|
public static function colRowCount($array) |
|
757
|
2 |
|
{ |
|
758
|
|
|
return [self::count(self::first($array)), self::count($array)]; |
|
759
|
|
|
} |
|
760
|
|
|
|
|
761
|
|
|
/** |
|
762
|
|
|
* 用给定的值填充数组 |
|
763
|
|
|
* |
|
764
|
|
|
* - array_fill:第一参数在为负的时候,生成的数组的第二个元素是从 0 开始的! |
|
765
|
|
|
* |
|
766
|
|
|
* @param int $startIndex 返回的数组的第一个索引值 |
|
767
|
|
|
* @param int $num 插入元素的数量。如果为 0 或者负数,则返回空数组 |
|
768
|
|
|
* @param mixed $value 用来填充的值 |
|
769
|
|
|
* |
|
770
|
|
|
* @return array |
|
771
|
|
|
* |
|
772
|
|
|
* @tested |
|
773
|
2 |
|
*/ |
|
774
|
|
|
public static function fill($startIndex, $num, $value) |
|
775
|
2 |
|
{ |
|
776
|
1 |
|
if ($num <= 0) { |
|
777
|
|
|
return []; |
|
778
|
2 |
|
} |
|
779
|
2 |
|
$array = []; |
|
780
|
2 |
|
foreach (self::rangeGenerator($startIndex, $startIndex + $num - 1) as $key) { |
|
781
|
|
|
$array[$key] = $value; |
|
782
|
2 |
|
} |
|
783
|
|
|
return $array; |
|
784
|
|
|
} |
|
785
|
|
|
|
|
786
|
|
|
/** |
|
787
|
|
|
* 让 var_export 返回 `[]` 的格式 |
|
788
|
|
|
* |
|
789
|
|
|
* @param mixed $expression 变量 |
|
790
|
|
|
* @param bool $return 默认值 为 true,即返回字符串而不是输出 |
|
791
|
|
|
* |
|
792
|
|
|
* @return mixed |
|
793
|
|
|
* |
|
794
|
|
|
* @tested |
|
795
|
1 |
|
*/ |
|
796
|
|
|
public static function export($expression, $return = true) |
|
797
|
1 |
|
{ |
|
798
|
1 |
|
$export = var_export($expression, true); |
|
799
|
1 |
|
$export = preg_replace("/^([ ]*)(.*)/m", '$1$1$2', $export); |
|
800
|
1 |
|
$array = preg_split("/\r\n|\n|\r/", $export); |
|
801
|
1 |
|
$array = preg_replace(["/\s*array\s\($/", "/\)(,)?$/", "/\s=>\s$/"], [null, ']$1', ' => ['], $array); |
|
802
|
1 |
|
$export = implode(PHP_EOL, array_filter(["["] + $array)); |
|
803
|
1 |
|
if (true === $return) { |
|
804
|
|
|
return $export; |
|
805
|
1 |
|
} else { |
|
806
|
|
|
echo $export; |
|
807
|
1 |
|
} |
|
808
|
|
|
} |
|
809
|
|
|
|
|
810
|
|
|
/** |
|
811
|
|
|
* 将 CSV 文本转成数组 |
|
812
|
|
|
* |
|
813
|
|
|
* @param string $csvString |
|
814
|
|
|
* |
|
815
|
|
|
* @return array |
|
816
|
|
|
* |
|
817
|
|
|
* @tested |
|
818
|
1 |
|
*/ |
|
819
|
|
|
public static function fromCsv($csvString) |
|
820
|
1 |
|
{ |
|
821
|
1 |
|
$lines = explode(PHP_EOL, $csvString); |
|
822
|
1 |
|
$array = []; |
|
823
|
1 |
|
foreach ($lines as $line) { |
|
824
|
|
|
$array[] = explode(',', $line); |
|
825
|
1 |
|
} |
|
826
|
|
|
return $array; |
|
827
|
|
|
} |
|
828
|
|
|
|
|
829
|
|
|
/** |
|
830
|
|
|
* 将查询记录格式的数组转成 csv 文本 |
|
831
|
|
|
* |
|
832
|
|
|
* @param array^2 记录 |
|
|
|
|
|
|
833
|
|
|
* |
|
834
|
|
|
* @return string |
|
835
|
|
|
*/ |
|
836
|
|
|
public static function recordsToCsv($records) |
|
837
|
|
|
{ |
|
838
|
|
|
if (0 === self::count($records)) { |
|
839
|
|
|
return ''; |
|
840
|
|
|
} |
|
841
|
|
|
$header = array_keys($records[0]); |
|
842
|
|
|
$arrays = self::values($records); |
|
843
|
1 |
|
return implode(',', $header) . PHP_EOL . implode(PHP_EOL, self::map($arrays, function ($array) { |
|
844
|
|
|
return implode(',', $array); |
|
845
|
1 |
|
})); |
|
846
|
1 |
|
} |
|
847
|
|
|
|
|
848
|
1 |
|
/** |
|
849
|
1 |
|
* 在数组中搜索给定的值,如果成功则返回首个相应的键名 |
|
850
|
1 |
|
* |
|
851
|
1 |
|
* - 第一参数如果不是回调函数,则此方法等同于 array_search |
|
852
|
|
|
* - 第一参数如果是回调函数,则找到的条件为:回调值为 true |
|
853
|
|
|
* - 第三参数如果是 false,则回调值只需要 true 值即可(例如:1) |
|
854
|
1 |
|
* |
|
855
|
|
|
* @param mixed|callback $search 搜索的值 |
|
856
|
|
|
* @param array $array 这个数组 |
|
857
|
|
|
* @param boolean $isStrict 是否检查完全相同的元素 |
|
858
|
|
|
* |
|
859
|
|
|
* @return mixed|false |
|
860
|
|
|
* |
|
861
|
|
|
* @tested |
|
862
|
|
|
*/ |
|
863
|
|
|
public static function search($search, $array, $isStrict = false) |
|
864
|
|
|
{ |
|
865
|
|
|
if (false === is_callable($search)) { |
|
866
|
|
|
return array_search($search, $array, $isStrict); |
|
867
|
|
|
} |
|
868
|
|
|
foreach ($array as $key => $row) { |
|
869
|
|
|
$result = I::call($search, [$row]); |
|
870
|
1 |
|
if ((true === $isStrict && true === $result) || (false === $isStrict && true == $result)) { |
|
871
|
|
|
return $key; |
|
872
|
1 |
|
} |
|
873
|
1 |
|
} |
|
874
|
|
|
return false; |
|
875
|
|
|
} |
|
876
|
|
|
|
|
877
|
|
|
/** |
|
878
|
|
|
* 递增数组的一个值并返回 |
|
879
|
|
|
* |
|
880
|
|
|
* - 如果该值不存在,则默认为 0 |
|
881
|
|
|
* |
|
882
|
|
|
* @param array $array 引用返回数组 |
|
883
|
|
|
* @param string $key |
|
884
|
|
|
* @param integer $step 步长,默认 1 |
|
885
|
|
|
* |
|
886
|
|
|
* @return double|integer |
|
887
|
|
|
* |
|
888
|
|
|
* @tested |
|
889
|
1 |
|
*/ |
|
890
|
|
|
public static function increment(&$array, $key, $step = 1) |
|
891
|
1 |
|
{ |
|
892
|
1 |
|
$array[$key] = I::get($array, $key, 0) + $step; |
|
893
|
|
|
return $array[$key]; |
|
894
|
|
|
} |
|
895
|
|
|
|
|
896
|
|
|
/** |
|
897
|
|
|
* 递减数组的一个值并返回 |
|
898
|
|
|
* |
|
899
|
|
|
* - 如果该值不存在,则默认为 0 |
|
900
|
|
|
* |
|
901
|
|
|
* @param array $array 引用返回数组 |
|
902
|
|
|
* @param string $key |
|
903
|
|
|
* @param integer $step 步长,默认 1 |
|
904
|
|
|
* |
|
905
|
3 |
|
* @return double|integer |
|
906
|
|
|
* |
|
907
|
3 |
|
* @tested |
|
908
|
1 |
|
*/ |
|
909
|
|
|
public static function decrement(&$array, $key, $step = 1) |
|
910
|
3 |
|
{ |
|
911
|
1 |
|
$array[$key] = I::get($array, $key, 0) - $step; |
|
912
|
|
|
return $array[$key]; |
|
913
|
3 |
|
} |
|
914
|
3 |
|
|
|
915
|
3 |
|
/** |
|
916
|
|
|
* in_array 的扩展 |
|
917
|
|
|
* |
|
918
|
|
|
* @param mixed $value |
|
919
|
|
|
* @param array|mixed $array |
|
920
|
|
|
* @param boolean $isStrict 是否严格匹配,默认 false,即不严格 |
|
921
|
|
|
* @param boolean $ignoreCase 是否忽略大小写,默认 false,不忽略 |
|
922
|
|
|
* |
|
923
|
|
|
* @return boolean |
|
924
|
|
|
*/ |
|
925
|
|
|
public static function in($value, $array, $isStrict = false, $ignoreCase = false) |
|
926
|
|
|
{ |
|
927
|
|
|
if (false === is_array($array)) { |
|
928
|
|
|
return false; |
|
929
|
|
|
} |
|
930
|
|
|
if (false === $ignoreCase) { |
|
931
|
|
|
return in_array($value, $array, $isStrict); |
|
932
|
|
|
} else { |
|
933
|
|
|
$value = Json::decode(strtolower(Json::encode($value))); |
|
934
|
|
|
$array = (array) Json::decode(strtolower(Json::encode($array))); |
|
935
|
|
|
return in_array($value, $array, $isStrict); |
|
936
|
|
|
} |
|
937
|
|
|
} |
|
938
|
|
|
|
|
939
|
|
|
/** |
|
940
|
|
|
* 对一个数组执行回调并返回新数组 |
|
941
|
|
|
* |
|
942
|
|
|
* @param array|mixed $array |
|
943
|
|
|
* @param callback|null $valueCallback 对值的回调,null 返回原值。function($value, $key) |
|
944
|
|
|
* @param callback|null $keyCallback 对键的回调,null 返回原值。function($key, $value) |
|
945
|
|
|
* |
|
946
|
|
|
* @return array |
|
947
|
|
|
*/ |
|
948
|
|
|
public static function map($array, $valueCallback, $keyCallback = null) |
|
949
|
|
|
{ |
|
950
|
|
|
$return = []; |
|
951
|
|
|
if (is_array($array)) { |
|
952
|
|
|
foreach ($array as $key => $value) { |
|
953
|
|
|
$callValue = null === $valueCallback ? $value : I::call($valueCallback, [$value, $key]); |
|
954
|
|
|
$callKey = null === $keyCallback ? $key : I::call($keyCallback, [$key, $value]); |
|
955
|
|
|
$return[$callKey] = $callValue; |
|
956
|
|
|
} |
|
957
|
|
|
} |
|
958
|
|
|
return $return; |
|
959
|
|
|
} |
|
960
|
|
|
|
|
961
|
|
|
/** |
|
962
|
|
|
* 排队取号 |
|
963
|
|
|
* |
|
964
|
|
|
* - 含义:给定只包含数字的索引数组,索引数组的值作为号码从小到大排序,如果中间漏掉某个号码,则返回该号码,否则返回最后一位号码,并且引用返回该队列 |
|
965
|
|
|
* - 号码的值从 0 开始 |
|
966
|
|
|
* - 例子:[4, 0, 1] 将引用返回数组[4, 0, 1, 2],函数返回 2 |
|
967
|
|
|
* |
|
968
|
|
|
* @param array $array |
|
969
|
|
|
* @param integer $begin 开始的号码,默认为 0 |
|
970
|
|
|
* |
|
971
|
|
|
* @return integer |
|
972
|
|
|
*/ |
|
973
|
|
|
public static function queueNumber(&$array, $begin = 0) |
|
974
|
|
|
{ |
|
975
|
|
|
$array2 = $array; |
|
976
|
|
|
sort($array2); |
|
977
|
|
|
$next = $begin; |
|
978
|
|
|
foreach ($array2 as $v) { |
|
979
|
|
|
if ($v > $next) { |
|
980
|
|
|
break; |
|
981
|
|
|
} elseif ($v < $next) { |
|
982
|
|
|
if ($v + 1 > $next) { |
|
983
|
|
|
$next = $v + 1; |
|
984
|
|
|
} |
|
985
|
|
|
} else { |
|
986
|
|
|
$next++; |
|
987
|
|
|
} |
|
988
|
|
|
} |
|
989
|
|
|
array_push($array, $next); |
|
990
|
|
|
return $next; |
|
991
|
|
|
} |
|
992
|
|
|
|
|
993
|
|
|
/** |
|
994
|
|
|
* 将一维数组的每项用分隔符拆分,得到两部分分别设置为新数组的键和值 |
|
995
|
|
|
* |
|
996
|
|
|
* @param string $delimiter 分隔符 |
|
997
|
|
|
* @param array $array |
|
998
|
|
|
* |
|
999
|
|
|
* @return array |
|
1000
|
|
|
*/ |
|
1001
|
|
|
public static function explode($delimiter, $array) |
|
1002
|
|
|
{ |
|
1003
|
|
|
$return = []; |
|
1004
|
|
|
foreach ($array as $row) { |
|
1005
|
|
|
list($k, $v) = Arrays::lists(explode($delimiter, $row), 2); |
|
1006
|
|
|
$return[$k] = $v; |
|
1007
|
|
|
} |
|
1008
|
|
|
return $return; |
|
1009
|
|
|
} |
|
1010
|
|
|
} |
|
1011
|
|
|
|