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<?php |
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/** |
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* Created by PhpStorm. |
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* User: yiranzai |
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* Date: 19-3-22 |
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* Time: 上午10:59 |
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*/ |
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namespace Yiranzai\Tools; |
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use ArrayAccess; |
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use Exception; |
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class Tools |
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{ |
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/** |
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* 转化内存信息 |
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* @param $bytes |
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* @param bool $binaryPrefix |
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* @return string |
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*/ |
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public static function getNiceFileSize(int $bytes, bool $binaryPrefix = true): string |
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{ |
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if ($binaryPrefix) { |
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$unit = array('B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB'); |
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if ($bytes === 0) { |
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return '0 ' . $unit[0]; |
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} |
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return @round($bytes / (1024 ** ($i = floor(log($bytes, 1024)))), 2) . ' ' . ($unit[(int)$i] ?? 'B'); |
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} |
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$unit = array('B', 'KB', 'MB', 'GB', 'TB', 'PB'); |
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if ($bytes === 0) { |
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return '0 ' . $unit[0]; |
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} |
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return @round($bytes / (1000 ** ($i = floor(log($bytes, 1000)))), 2) . ' ' . ($unit[(int)$i] ?? 'B'); |
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} |
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/** |
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* 调用对象的方法 |
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* @param object $object |
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* @param string $func |
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* @param array $params |
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* @param null $default |
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* @return mixed|null |
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*/ |
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public static function callFunc($object, $func, array $params = [], $default = null) |
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{ |
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if (is_object($object) && method_exists($object, $func)) { |
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return call_user_func_array([$object, $func], $params); |
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} |
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return $default; |
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} |
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/** |
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* 获取一个对象或者一个数组的属性 |
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* |
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* @param $iterator |
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* @param mixed $key |
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* @param mixed|null $default |
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* @return mixed |
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* @throws Exception |
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*/ |
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public static function iteratorGet($iterator, $key, $default = null) |
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{ |
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if (empty($iterator)) { |
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if ($default instanceof Exception) { |
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throw $default; |
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} |
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return $default; |
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} |
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if (is_object($iterator)) { |
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if (!method_exists($iterator, $key)) { |
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if ($iterator instanceof ArrayAccess) { |
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return self::arrGet($iterator, $key, $default); |
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} |
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return self::objectGet($iterator, $key, $default); |
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} |
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// 对象获取 |
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return self::objectGet($iterator, $key, $default); |
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} |
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// 数组获取 |
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return self::arrGet($iterator, $key, $default); |
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} |
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/** |
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* 获取数组中的某个元素 |
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* @param array|mixed $arr 数组 |
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* @param mixed $key 下标 |
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* @param null|mixed $default 默认值 |
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* @return mixed|null 如果存在指定元素则返回元素，否则返回默认值 |
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* @throws Exception |
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*/ |
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public static function arrGet($arr, $key, $default = null) |
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{ |
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$isDefault = false; |
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if (empty($arr) || (empty($key) && 0 !== $key)) { |
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$isDefault = true; |
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} elseif (!isset($arr[$key])) { |
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$isDefault = true; |
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} |
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if ($isDefault) { |
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if ($default instanceof Exception) { |
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throw $default; |
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} |
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return $default; |
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} |
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return $arr[$key]; |
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} |
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/** |
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* 获取对象中的某个元素 |
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* @param object $json json对象 |
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* @param string $key 下标 |
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* @param null|mixed $default 默认值 |
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* @return mixed|null 如果存在指定元素则返回该元素，否则返回默认值 |
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* @throws Exception |
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*/ |
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public static function objectGet($json, $key, $default = null) |
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{ |
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$isDefault = false; |
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if (empty($json) || empty($key)) { |
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$isDefault = true; |
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} elseif (!isset($json->{$key})) { |
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$isDefault = true; |
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} |
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if ($isDefault) { |
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if ($default instanceof Exception) { |
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throw $default; |
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} |
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return $default; |
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} |
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return $json->{$key}; |
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} |
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} |
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yiranzai /
php-tools
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