find(); } } public static function all($function) { $query = self::newQuery(); $function($query); return $query->select(); } /** * 查询一条数据是否存在 * @param $map * @param string $field * @return bool 是否存在 */ public static function be($map, $field = '') { $model = (new self); if (!is_array($map) && empty($field)) $field = $model->getPk(); $map = !is_array($map) ? [$field => $map] : $map; return 0 < $model->where($map)->count(); } /** * 删除一条数据 * @param $id * @return bool $type 返回成功失败 */ public static function del($id) { return false !== self::destroy($id); } /** * 获取去除html去除空格去除软回车,软换行,转换过后的字符串 * @param string $str * @return string */ public static function HtmlToMbStr($str) { return trim(strip_tags(str_replace(["\n", "\t", "\r", " ", " "], '', htmlspecialchars_decode($str)))); } /** * 截取中文指定字节 * @param string $str * @param int $utf8len * @param string $chaet * @param string $file * @return string */ public static function getSubstrUTf8($str, $utf8len = 100, $chaet = 'UTF-8', $file = '....') { if (mb_strlen($str, $chaet) > $utf8len) { $str = mb_substr($str, 0, $utf8len, $chaet) . $file; } return $str; } /** * 获取本季度 time * @param int|string $time * @param string $ceil * @return array */ public static function getMonth($time = '', $ceil = 0) { if ($ceil != 0) $season = ceil(date('n') / 3) - $ceil; else $season = ceil(date('n') / 3); $firstday = date('Y-m-01', mktime(0, 0, 0, ($season - 1) * 3 + 1, 1, date('Y'))); $lastday = date('Y-m-t', mktime(0, 0, 0, $season * 3, 1, date('Y'))); return array($firstday, $lastday); } /** * 高精度 加法 * @param int|string $uid id * @param string $decField 相加的字段 * @param float|int $dec 加的值 * @param string $keyField id的字段 * @param int $acc 精度 * @return bool */ public static function bcInc($key, $incField, $inc, $keyField = null, $acc = 2) { if (!is_numeric($inc)) return false; $model = new self(); if ($keyField === null) $keyField = $model->getPk(); $result = self::where($keyField, $key)->find(); if (!$result) return false; $new = bcadd($result[$incField], $inc, $acc); $result->$incField = $new; return false !== $result->save(); // return false !== $model->where($keyField, $key)->update([$incField => $new]); } /** * 高精度 减法 * @param int|string $uid id * @param string $decField 相减的字段 * @param float|int $dec 减的值 * @param string $keyField id的字段 * @param bool $minus 是否可以为负数 * @param int $acc 精度 * @return bool */ public static function bcDec($key, $decField, $dec, $keyField = null, $minus = false, $acc = 2) { if (!is_numeric($dec)) return false; $model = new self(); if ($keyField === null) $keyField = $model->getPk(); $result = self::where($keyField, $key)->find(); if (!$result) return false; if (!$minus && $result[$decField] < $dec) return false; $new = bcsub($result[$decField], $dec, $acc); $result->$decField = $new; return false !== $result->save(); } /** * @param null $model * @return Model */ protected static function getSelfModel($model = null) { return $model == null ? (new self()) : $model; } /** * 修改一条数据 * @param $data * @param $id * @param $field * @return bool $type 返回成功失败 */ public static function edit($data, $id, $field = null) { $model = new self; if (!$field) $field = $model->getPk(); // return false !== $model->update($data,[$field=>$id]); // return 0 < $model->update($data,[$field=>$id])->result; $res = $model->update($data, [$field => $id]); if (isset($res->result)) return 0 < $res->result; else if (isset($res['data']['result'])) return 0 < $res['data']['result']; else return false !== $res; } }