php操作myslq自动生成数据字典

落日映苍穹つ 2022-05-12 02:40 220阅读 0赞

<?php
    set_time_limit(600);
    //配置数据库
    $dbserver   = "127.0.0.1";
    $dbusername = "root";
    $dbpassword = "密码";
    $database      = "test";
    //其他配置
    $title = '数据字典';
    $pdo=new PDO("mysql:host=".$dbserver.";dbname=".$database,$dbusername,$dbpassword);
    $pdo->query('SET NAMES utf8');
    $table_result=$pdo->query('show tables');
    $arr=$table_result->fetchAll(PDO::FETCH_ASSOC);
    
    //取得所有的表名
    foreach ($arr as $val){
        $tables[]['TABLE_NAME'] =$val['Tables_in_'.$database];
    }
    
    
    //循环取得所有表的备注及表中列消息
    foreach ($tables AS $k=>$v) {
        $sql  = 'SELECT * FROM ';
        $sql .= 'INFORMATION_SCHEMA.TABLES ';
        $sql .= 'WHERE ';
        $sql .= "table_name = '{$v['TABLE_NAME']}'  AND table_schema = '{$database}'";
        $table_result = $pdo->query($sql);
        $t=$table_result->fetchAll(PDO::FETCH_ASSOC);
    
    
    
        foreach($t as $v) {
            $tables[$k]['TABLE_COMMENT'] = $v['TABLE_COMMENT'];
        }
        $sql  = 'SELECT * FROM ';
        $sql .= 'INFORMATION_SCHEMA.COLUMNS ';
        $sql .= 'WHERE ';
        $sql .= "table_name = '{$v['TABLE_NAME']}' AND table_schema = '{$database}'";
        $fields = array();
        $field_result = $pdo->query($sql);
        $t=$field_result->fetchAll(PDO::FETCH_ASSOC);
        foreach ($t as $v) {
            $fields[] = $v;
        }
        $tables[$k]['COLUMN'] = $fields;
    }
    
    
    
    
    
    $html = '';
    //循环所有表
    foreach ($tables AS $k=>$v) {
        //$html .= '<p><h2>'. $v['TABLE_COMMENT'] . ' </h2>';
        $html .= '<table  border="1" cellspacing="0" cellpadding="0" align="center">';
        $html .= '<caption>' . $v['TABLE_NAME'] .'  '. $v['TABLE_COMMENT']. '</caption>';
        $html .= '<tbody><tr><th>字段名</th><th>数据类型</th><th>默认值</th>  
         <th>允许非空</th>  
         <th>自动递增</th><th>备注</th></tr>';
        $html .= '';
        foreach ($v['COLUMN'] AS $f) {
            $html .= '<tr><td class="c1">' . $f['COLUMN_NAME'] . '</td>';
            $html .= '<td class="c2">' . $f['COLUMN_TYPE'] . '</td>';
            $html .= '<td class="c3"> ' . $f['COLUMN_DEFAULT'] . '</td>';
            $html .= '<td class="c4"> ' . $f['IS_NULLABLE'] . '</td>';
            $html .= '<td class="c5">' . ($f['EXTRA']=='auto_increment'?'是':' ') . '</td>';
            $html .= '<td class="c6"> ' . $f['COLUMN_COMMENT'] . '</td>';
            $html .= '</tr>';
        }
        $html .= '</tbody></table></p>';
    }
    //输出
    echo '<html>  
     <head>  
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
     <title>'.$title.'</title>  
     <style>  
     body,td,th {font-family:"宋体"; font-size:12px;}  
     table{border-collapse:collapse;border:1px solid #CCC;background:#efefef;}  
     table caption{text-align:left; background-color:#fff; line-height:2em; font-size:14px; font-weight:bold; }  
     table th{text-align:left; font-weight:bold;height:26px; line-height:26px; font-size:12px; border:1px solid #CCC;}  
     table td{height:20px; font-size:12px; border:1px solid #CCC;background-color:#fff;}  
     .c1{ width: 120px;}  
     .c2{ width: 120px;}  
     .c3{ width: 70px;}  
     .c4{ width: 80px;}  
     .c5{ width: 80px;}  
     .c6{ width: 270px;}  
     </style>  
     </head>  
     <body>';
    echo '<h1 style="text-align:center;">'.$title.'</h1>';
    echo $html;
    echo '</body></html>';
    ?>