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PHP导出MySQL数据字典

2017-11-09 09:34 585 查看
2017年11月9日09:30:29

用 PHP mysqli 写的一个类文件, 用来导出MySQL数据字典

导出表信息; 字段信息, 索引信息

可以导出浏览器适用的样式, 也可以导出word文档(默认720px)宽度,字体10px

建议上线前用这个导出一份, 整体过一遍, 防止有些字段, not null, 索引等设置不到位的情况

https://gitee.com/myDcool/PHP-DBDIC

用法:

include('./DBdic.php');

//浏览器显示
DBdic::ini('localhost', 'db_name', 'username', 'password')->outForBrowser();

//下载word文档
DBdic::ini('localhost', 'db_name', 'username', 'password')->outForWord();


<?php
/**
* 生成mysql数据字典
*/
class DBdic
{
public $database = array(); //数据库配置
public $tables = array(); //读取的表信息数组
public $htmlTable = ''; //表格内容
public $html = '';

public static function ini($host, $dbname, $user, $pwd)
{
return new self($host, $dbname, $user, $pwd);
}

function __construct($host, $dbname, $user, $pwd)
{
// 配置数据库
$this->database['DB_HOST'] = $host;
$this->database['DB_NAME'] = $dbname;
$this->database['DB_USER'] = $user;
$this->database['DB_PWD'] = $pwd;

//链接MySQL
$mysqli = mysqli_init();
$mysqli->options(MYSQLI_OPT_CONNECT_TIMEOUT, 2); //超时2s
$mysqli->options(MYSQLI_INIT_COMMAND, "set names utf8mb4;");
$mysqli->real_connect($this->database['DB_HOST'], $this->database['DB_USER'], $this->database['DB_PWD'], $this->database['DB_NAME']) or die("Mysql connect is error.");

// 取得所有表名
$rs = $mysqli->query('show tables');
$arrTableName = array_column($rs->fetch_all(), $value=0);

// 取得所有表信息
foreach ($arrTableName as $name) {

//表注释
$sql = "select * from information_schema.tables where table_schema = '{$this->database['DB_NAME']}' and table_name = '{$name}' "; //查询表信息
$rs = $mysqli->query($sql);
$arrTableInfo = $rs->fetch_assoc();

//各字段信息
$sql = "select * from information_schema.columns where table_schema ='{$this->database['DB_NAME']}' and table_name = '{$name}' "; //查询字段信息
$rs = $mysqli->query($sql);
$arrColumnInfo = $rs->fetch_all(MYSQLI_ASSOC);

//索引信息
$sql = "show index from {$name}";
$rs = $mysqli->query($sql);
$arrIndexInfo = $rs->fetch_all(MYSQLI_ASSOC);

$this->tables[] = array(
'TABLE' => $arrTableInfo,
'COLUMN' => $arrColumnInfo,
'INDEX' => $this->getIndexInfo($arrIndexInfo)
);
}

//组装HTML
$html = '';
foreach($this->tables as $v)
{
$html .= '<table border="1" cellspacing="0" cellpadding="0" align="center">';
$html .= '<caption>' . $v['TABLE']['TABLE_NAME'] . ' ' . $v['TABLE']['TABLE_COMMENT'] . '</caption>';
$html .= '<tbody><tr><th>字段名</th><th>数据类型</th><th>默认值</th><th>允许非空</th><th>索引/自增</th><th>备注(字段数: '. count($v['COLUMN']).')</th></tr>';

foreach ($v['COLUMN'] AS $f) {
$html .= '<tr>';
$html .= '<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">' . $f['COLUMN_KEY'].' '.$f['EXTRA']. '</td>';
$html .= '<td class="c6">' . $f['COLUMN_COMMENT']   . '</td>';
$html .= '</tr>';
}
$html .= '</tbody></table>';

$html .= '<table style="border-top:hidden"  cellspacing="0" cellpadding="0" align="center">';
$html .= '<tr><th>索引名</th><th>索引顺序</th></tr>';
foreach ($v['INDEX'] as $indexName => $indexContent) {
$html .= '<tr>';
$html .= '<td class="c7">' . $indexName . '</td>';
$html .= '<td>' . implode('; ', $indexContent) . '</td>';
$html .= '</tr>';
}
$html .= '</table><br>';
}
$this->htmlTable = $html;
}

//整合单个表的所有索引(将复合索引归纳到一起)
function getIndexInfo($arrIndexInfo)
{
$index = array();
foreach ($arrIndexInfo as $v) {
$unique = ($v['Non_unique'] == 0) ? '(unique)' : '';
$index[$v['Key_name']][] = $v['Seq_in_index'].': '.$v['Column_name'].$unique;
}

return $index;
}

//输出到浏览器, 表格宽度用百分比
function outForBrowser()
{
header("Content-type:text/html;charset=utf-8");
$html = '<html>
<meta charset="utf-8">
<title>自动生成数据字典</title>
<style>
body,td,th {font-family:"宋体"; font-size:14px;}
table,h1,p{width:80%;margin:0px auto;}
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:14px; border:1px solid #CCC;padding-left:5px;}
table td{height:20px; font-size:14px; border:1px solid #CCC;background-color:#fff;padding-left:5px;}
.c1{ width: 10%;}
.c2{ width: 10%;}
.c3{ width: 5%;}
.c4{ width: 5%;}
.c5{ width: 10%;}
.c6{ width: 60%;}
.c7{ width: 10%;}
</style>
<body>';
$html .= '<h1 style="text-align:center;">'.$this->database['DB_NAME'].'数据字典</h1>';
$html .= '<p style="text-align:center;margin:20px auto;">生成时间：' . date('Y-m-d H:i:s') . '  总共：' . count($this->tables) . '个数据表</p>';
$html .= $this->htmlTable;
$html .= '</body></html>';

$this->html = $html;
echo $html;
// return $this;
}

//输出到word文档, 固定宽度为720px
function outForWord()
{
/* 生成word */
header("Content-type:text/html;charset=utf-8");
header( "Content-type:application/vnd.ms-word" );
header( "Content-Disposition:attachment;filename={$this->database['DB_NAME']}数据字典.doc" );

$html = '<html>
<meta charset="utf-8">
<title>自动生成数据字典</title>
<style>
body,td,th {font-family:"宋体"; font-size:14px;}
table,h1,p{width:720px;margin:0px auto;}
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:20px; line-height:20px; font-size:11px; border:1px solid #CCC;padding-left:5px;}
table td{height:20px; font-size:11px; border:1px solid #CCC;background-color:#fff;padding-left:5px;}
.c1{ width: 100px;}
.c2{ width: 110px;}
.c3{ width: 50px;}
.c4{ width: 55px;}
.c5{ width: 100px;}
.c6{ width: 300px;}
.c7{ width: 200px;}
</style>
<body>';
$html .= '<h1 style="text-align:center;">'.$this->database['DB_NAME'].'数据字典</h1>';
$html .= '<p style="text-align:center;margin:20px auto;">生成时间：' . date('Y-m-d H:i:s') . '  总共：' . count($this->tables) . '个数据表</p>';
$html .= $this->htmlTable;
$html .= '</body></html>';

$this->html = $html;
echo $html;
// return $this;
}

function out()
{
// echo $this->html;
}

}


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