Code:

 

/**
 * 生成mysql数据字典
 */
//配置数据库
$dbserver   = "127.0.0.1";
$dbusername = "root";
$dbpassword = "xxxxxx";
$data       = "table_name";
//其他配置
$  = '数据字典';
$pdo=new PDO("mysql:host=".$dbserver.";dbname=".$data ,$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_table_name'];
}

//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 = '{$data }'";
    $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 = '{$data }'";
    $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>';
    }
    $html .= '</tbody></table></p>';
}
//输出
echo '<html>  
 <head>  
 <  http-equiv="Content-Type" content="text/html; charset=utf-8" />  
 < >'.$ .'</ >  
 <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;">'.$ .'</h1>';
echo $html;
echo '</body></html>';

　　

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