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[PHP] 生成数据库字典的PHP代码支持PDO扩展

本文主要是介绍[PHP] 生成数据库字典的PHP代码支持PDO扩展，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

有时候没有数据库字典设计文档，根据现有的数据库注释进行生成一份

 

<?php
header('content-type:text/html;charset=utf-8');
define('DB_HOST','192.168.11.7');
define('DB_USER','root');
define('DB_PASS','centos');
define('DB_NAME','new_admin');
define('DB_PORT',3306);
define('DB_CHAR','utf8');
define('APPNAME','new_admin');
$dbh = new PDO("mysql:host=".DB_HOST.":".DB_PORT.";dbname=".DB_NAME,DB_USER,DB_PASS);
$dbh->exec('set names ' . DB_CHAR);
$sth = $dbh->prepare("SHOW TABLE STATUS FROM " . DB_NAME);
$sth->execute();
$array = $sth->fetchAll(PDO::FETCH_ASSOC);
$tab_count = count($array);
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="zh"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>'.APPNAME.'--数据字典</title> 
<style type="text/css"> 
  table caption, table th, table td { 
    padding: 0.1em 0.5em 0.1em 0.5em; 
    margin: 0.1em; 
    vertical-align: top; 
  } 
  th { 
    font-weight: bold; 
    color: black; 
    background: #D3DCE3; 
  } 
  table tr.odd th, .odd { 
    background: #E5E5E5; 
  } 
  table tr.even th, .even { 
    background: #f3f3f3; 
  } 
  .db_table{ 
    border-top:1px solid #333; 
    width: 100%;
  } 
  .title{font-weight:bold;} 
</style> 
</head> 
<body> 
<div style="text-align:center;background:#D3DCE3;font-size:19px;"> 
  <b>'.APPNAME.'--数据字典</b> 
</div> 
<div style="background:#f3f3f3;text-align:center;">（注：共'.$tab_count.'张表，按ctrl+F查找关键字）</div>'."\n";
for($i=0;$i<$tab_count;$i++){
    echo '<ul type="square">'."\n";
    echo ' <li class="title">';
    echo ($i+1).'、表名：[' . $array[$i]['Name'] . ']   注释：' . $array[$i]['Comment'];
    echo '</li>'."\n";
//查询数据库字段信息
    $tab_name = $array[$i]['Name'];
    $sql_tab='show full fields from `' . $array[$i]['Name'].'`';
    $sth = $dbh->prepare($sql_tab);
    $sth->execute();
    $tab_array = $sth->fetchAll(PDO::FETCH_ASSOC);
//show keys
    $sth = $dbh->prepare("show keys from `".$array[$i]['Name'].'`');
    $sth->execute();
    $arr_keys = $sth->fetchAll(PDO::FETCH_ASSOC);
    echo '<li style="list-style: none outside none;"><table border="0" class="db_table" >';
    echo '<tr class="head"> 
    <th style="width:180px">字段</th> 
    <th style="width:150px">类型</th> 
    <th style="width:50px">为空</th> 
    <th style="width:180px">额外</th> 
    <th style="width:180px">默认</th> 
    <th style="width:150px">整理</th> 
    <th>备注</th></tr>';
    for($j=0;$j<count($tab_array);$j++){
        $key_name=isset($arr_keys['Key_name'])? $arr_keys['Key_name']:"";
        if($key_name="PRIMARY"){
            $key_name='主键（'.$key_name.'）';
        }
        $key_field=isset($arr_keys['Column_name']) ? $arr_keys['Column_name']:"";
        if ( $tab_array[$j]['Field']==$key_field){
            $key_value="PK";
        }else{
            $key_value="";
        }
        echo '    <tr class="'.($j%2==0?"odd":"even").'">'."\n";
        echo '     <td>' . $tab_array[$j]['Field'] . '</td>'."\n";
        echo '     <td>' . $tab_array[$j]['Type'] . '</td>'."\n";
        echo '     <td>' . ($key_value!=''?$key_value:$tab_array[$j]['Null']) . '</td>'."\n";
        echo '     <td>' . $tab_array[$j]['Extra'] . '</td>'."\n";
        echo '     <td>' . $tab_array[$j]['Default'] . '</td>'."\n";
        echo '     <td>' . $tab_array[$j]['Collation'] . '</td>'."\n";
        echo '     <td>' . ($key_value!=''?$key_name:$tab_array[$j]['Comment']) . '</td>'."\n";
        echo '    </tr>'."\n";
    }
    echo ' </table></li>'."\n";
    echo '</ul>'."\n";

}
echo '</body>'."\n";
echo '</html>'."\n";

效果是这样的

 

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