PHP批量更新数据

/** * 批量更新函数 * @param $data array 待更新的数据，二维数组格式 * @param array $params array 值相同的条件，键值对应的一维数组 * @param string $field string 值不同的条件，默认为id * @return bool|string 返回执行的SQL语句 */function batchUpdate($table_name,$data, $field, $params = []){ ???if (!is_array($data) || !$field || !is_array($params)) { ???????return false; ???} ???$updates = parseUpdate($data, $field); ???$where = parseParams($params); ???$fields = array_column($data, $field); ???$fields = implode(‘,‘, array_map(function ($value) { ???????return "‘" . $value . "‘"; ???}, $fields)); ???return sprintf("UPDATE `%s` SET %s WHERE `%s` IN (%s) %s", $table_name, $updates, $field, $fields, $where);}/** * 将二维数组转换成CASE WHEN THEN的批量更新条件 * @param $data array 二维数组 * @param $field string 列名 * @return string sql语句 */function parseUpdate($data, $field){ ???$sql = ‘‘; ???$keys = array_slice(array_keys(current($data)), 1); ???foreach ($keys as $column) { ???????$sql .= sprintf("`%s` = CASE `%s` \n", $column, $field); ???????foreach ($data as $line) { ???????????$sql .= sprintf("WHEN ‘%s‘ THEN ‘%s‘ \n", $line[$field], $line[$column]); ???????} ???????$sql .= "END,"; ???} ???return rtrim($sql, ‘,‘);}/** * 解析where条件 * @param $params * @return array|string */function parseParams($params){ ???$where = []; ???foreach ($params as $key => $value) { ???????$where[] = sprintf("`%s` = ‘%s‘", $key, $value); ???} ???return $where ? ‘ AND ‘ . implode(‘ AND ‘, $where) : ‘‘;}