在Thinkphp5中如何生成数据库字典-PHP 튜토리얼-php.cn

在Thinkphp5中如何生成数据库字典

PHPz

풀어 주다： 2020-06-15 09:58:33

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在Thinkphp5中如何生成数据库字典

如何生成数据库字典？

示例代码使用PHP框架：Thinkphp5.0

PHP代码：

/**
     * 生成数据库字典html
     * 可直接另存为再copy到word文档中使用
     *
     * @return mixed
     */
    public function dataDictionary()
    {
        $tables = Db::query(&#39;SHOW TABLE STATUS&#39;);
        $table_list = array_map(&#39;array_change_key_case&#39;, $tables);
        $table_data = [];
        foreach ($table_list as $item) {
            $table_name = str_replace(config(&#39;database.prefix&#39;),&#39;&#39;,$item[&#39;name&#39;]);
            $table_fields = $this->showColumns($table_name);
            foreach ($table_fields as &$fieldItem) {
                $fieldItem[&#39;comment&#39;] = $this->getDbColumnComment($table_name, $fieldItem[&#39;name&#39;]);
            }
            $table_data[] = [
                &#39;table_name&#39; => $item[&#39;name&#39;],
                &#39;table_comment&#39; => $item[&#39;comment&#39;],
                &#39;table_fields&#39; => $table_fields
            ];
        }
        $this->assign(&#39;table_data&#39;, $table_data);

        return $this->fetch(&#39;&#39;);
    }

    /**
     * 显示表结构信息
     *
     * @param string $table
     * @return array
     */
    private function showColumns($table){

        $sql = &#39;SHOW COLUMNS FROM `&#39;.config(&#39;database.prefix&#39;).$table.&#39;`&#39;;
        $result = Db::query($sql);
        if ($result === false) return array();
        $array = array();
        if (!empty($result)) {
            foreach ($result as $k=>$v) {
                $array[$v[&#39;Field&#39;]] = [
                    &#39;name&#39;    => $v[&#39;Field&#39;],
                    &#39;type&#39;    => $v[&#39;Type&#39;],
                    &#39;null&#39;       => $v[&#39;Null&#39;],
                    &#39;default&#39; => $v[&#39;Default&#39;],
                    &#39;primary&#39; => (strtolower($v[&#39;Key&#39;]) == &#39;pri&#39;),
                    &#39;autoinc&#39; => (strtolower($v[&#39;Extra&#39;]) == &#39;auto_increment&#39;),
                ];
            }
        }

        return $array;
    }

    /**
     * 获取数据库字段注释
     *
     * @param string $table_name 数据表名称(必须，不含前缀)
     * @param string|boolean $field 字段名称(默认获取全部字段,单个字段请输入字段名称)
     * @param string $table_schema 数据库名称(可选)
     * @return string
     */
    private function getDbColumnComment($table_name = &#39;&#39;, $field = true, $table_schema = &#39;&#39;){
        // 接收参数
        $database = config(&#39;database&#39;);

        $table_schema = empty($table_schema) ? $database[&#39;database&#39;] : $table_schema;
        $table_name = $database[&#39;prefix&#39;] . $table_name;

        // 处理参数
        $param = [
            $table_name,
            $table_schema
        ];

        // 字段
        $columnName = &#39;&#39;;
        if($field !== true){
            $param[] = $field;
            $columnName = "AND COLUMN_NAME = ?";
        }

        // 查询结果
        $result = Db::query("SELECT COLUMN_NAME as field,column_comment as comment FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = ? AND table_schema = ? $columnName", $param);
        if(empty($result) && $field !== true){
            return $table_name . &#39;表&#39; . $field . &#39;字段不存在&#39;;
        }

        // 处理结果
        foreach($result as $k => $v){
            $data[$v[&#39;field&#39;]] = $v[&#39;comment&#39;];
            if(strpos($v[&#39;comment&#39;], &#39;#*#&#39;) !== false){
                $tmpArr = explode(&#39;#*#&#39;, $v[&#39;comment&#39;]);
                $data[$v[&#39;field&#39;]] = json_decode(end($tmpArr), true);
            }
        }
        // 字段注释格式不正确
        if(empty($data)){
            return $table_name . &#39;表&#39; . $field . &#39;字段注释格式不正确&#39;;
        }
        return count($data) == 1 ? reset($data) : $data;
    }

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Html代码：

<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>快速生成数据库字典</title>
    <style type="text/css">
        .table-name {
            text-align: center;
            margin: 15px auto;
            font-weight: bold;
            font-size: 20px;
        }

        table {
            border-collapse: collapse;
            margin: 0 auto;
            text-align: center;
            width: 550px;
        }

        table caption {
            margin: 15px auto;
        }

        table td, table th {
            border: 1px solid #cad9ea;
            color: #666;
            height: 30px;
        }

        table thead th {
            background-color: #CCE8EB;
            width: 100px;
        }

        table tr:nth-child(odd) {
            background: #fff;
        }

        table tr:nth-child(even) {
            background: #F5FAFA;
        }
    </style>
</head>
<body>

{foreach $table_data as $tableInfo}
<div class="table-name">{$tableInfo.table_name}(表注释：{$tableInfo.table_comment})</div>
<table class="table">
    <thead>
    <tr>
        <th>字段</th>
        <th>类型</th>
        <th>空</th>
        <th>默认</th>
        <th>注释</th>
    </tr>
    </thead>
    <tbody>
    {foreach $tableInfo[&#39;table_fields&#39;] as $field}
    <tr>
        <td>
            {$field.name}
        </td>
        <td>
            {$field.type}
        </td>
        <td>
            {$field.null}
        </td>
        <td style="max-width: 30px;">
            {$field.default}
        </td>
        <td>
            {$field.comment}
        </td>
    </tr>
    {/foreach}
    </tbody>
</table>
{/foreach}


</body>
</html>

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注：如需保存到word文档，需网页另存为html文件并用word软件打开，将内容全选复制到新的word文档中即可。

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