PHP生成MySQL数据表结构程序代码
用过dedecms系统的朋友都会看到在后台的数据表管理中我们可以在后台看到表的数据表结构及字符长度了，下面我也整理了一个PHP生成MySQL数据字典 数据表结构例子，大家一起来看看。
程序代码如下
<?php
/**
* 生成mysql数据字典
*/
// 配置数据库
$database = array();
$database['DB_HOST'] = '127.0.0.1';
$database['DB_NAME'] = 'test';
$database['DB_USER'] = 'testuser';
$database['DB_PWD'] = '123456';
$mysql_conn = @mysql_connect("{$database['DB_HOST']}", "{$database['DB_USER']}", "{$database['DB_PWD']}") or die("Mysql connect is error.");
mysql_select_db($database['DB_NAME'], $mysql_conn);
$result = mysql_query('show tables', $mysql_conn);
mysql_query('SET NAME GBK', $mysql_conn);
// 取得所有表名
while ($row = mysql_fetch_array($result))
{
$tables[]['TABLE_NAME'] = $row[0];
}
// 循环取得所有表的备注及表中列消息
foreach($tables as $k => $v)
{
$sql = 'SELECT * FROM ';
$sql .= 'INFORMATION_SCHEMA.TABLES ';
$sql .= 'WHERE ';
$sql .= "table_name = '{$v['TABLE_NAME']}' AND table_schema = '{$database['DB_NAME']}'";
$table_result = mysql_query($sql, $mysql_conn);
while ($t = mysql_fetch_array($table_result))
{
$tables[$k]['TABLE_COMMENT'] = $t['TABLE_COMMENT'];
}
$sql = 'SELECT * FROM ';
$sql .= 'INFORMATION_SCHEMA.COLUMNS ';
$sql .= 'WHERE ';
$sql .= "table_name = '{$v['TABLE_NAME']}' AND table_schema = '{$database['DB_NAME']}'";
$fields = array();
$field_result = mysql_query($sql, $mysql_conn);
while ($t = mysql_fetch_array($field_result))
{
$fields[] = $t;
}
$tables[$k]['COLUMN'] = $fields;
}
mysql_close($mysql_conn);
$html = '';
// 循环所有表
foreach($tables as $k => $v)
{
$html .= '<table border="1" cellspacing="0" cellpadding="0" align="center">';
$html .= '<caption>表名：' . $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 .= '<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>
<meta charset="utf-8">
<title>自动生成数据字典</title>
<style>
body,td,th {font-family:"宋体"; font-size:12px;}
table,h1,p{width:960px;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:12px; border:1px solid #CCC;padding-left:5px;}
table td{height:20px; font-size:12px; border:1px solid #CCC;background-color:#fff;padding-left:5px;}
.c1{ width: 150px;}
.c2{ width: 150px;}
.c3{ width: 80px;}
.c4{ width: 100px;}
.c5{ width: 100px;}
.c6{ width: 300px;}
</style>
<body>';
echo '<h1 style="text-align:center;">数据字典</h1>';
echo '<p style="text-align:center;margin:20px auto;">生成时间：' . date('Y-m-d H:i:s') . '</p>';
echo $html;
echo '<p style="text-align:left;margin:20px auto;">总共：' . count($tables) . '个数据表</p>';
echo '</body></html>';
?>111
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