nexusphp/nexus/Install/Update.php

<?php

namespace Nexus\Install;

class Update extends Install
{

    protected $steps = ['环境检测', '添加 .env 文件', '修改&创建数据表', '导入数据'];


    public function getLogFile()
    {
        return sprintf('%s/nexus_update_%s.log', sys_get_temp_dir(), date('Ymd'));
    }

    public function getUpdateDirectory()
    {
        return ROOT_PATH . 'public/update';
    }

    public function listTableFieldsFromCreateTable($createTableSql)
    {
        $arr = preg_split("/[\r\n]+/", $createTableSql);
        $result = [];
        foreach ($arr as $value) {
            $value = trim($value);
            if (substr($value, 0, 1) != '`') {
                continue;
            }
            $pos = strpos($value, '`', 1);
            $field = substr($value, 1, $pos - 1);
            $result[$field] = rtrim($value, ',');
        }
        return $result;
    }

    public function listTableFieldsFromDb($table)
    {
        $sql = "desc $table";
        $res = sql_query($sql);
        $data = [];
        while ($row = mysql_fetch_assoc($res)) {
            $data[$row['Field']] = $row;
        }
        return $data;
    }

}