PHP 针对mysql 自动生成数据字典
确保php 可以正常使用mysqli 扩展
这里还需要注意 数据库密码 如果密码中有特殊字符 如：
首先，我们需要了解MySQL中的特殊字符包括哪些。MySQL中的特殊字符主要包括以下几类：
1. 单引号（'） 2. 双引号（"） 3. 反斜杠（\） 4. 美元符号（$） 5. 反引号（`） 6. 百分号（%） 7. 下划线（_）
如果密码为123456$Aki
那么密码应该写成：
php
$database['DB_PWD'] = '123456\$Aki';完整代码如下：
php
<?php
/**
* 生成mysql数据字典
*/
header("Content-type:text/html;charset=utf-8");
// 配置数据库
$database = array();
$database['DB_HOST'] = '127.0.0.1';
$database['DB_NAME'] = 'demo';
$database['DB_USER'] = 'root';
$database['DB_PWD'] = '123456';
$conn = mysqli_connect("{$database['DB_HOST']}", "{$database['DB_USER']}", "{$database['DB_PWD']}", $database['DB_NAME']);
if ($conn->connect_error) {
die("连接失败: " . $conn->connect_error);
}
mysqli_query($conn,"SET NAMES utf8");
$result = $conn->query('show tables', $mysql_conn);
if ($result->num_rows > 0) {
// 取得所有表名
while ($row = $result->fetch_array()) {
$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 = $conn->query($sql);
while ($t = $table_result->fetch_array())
{
$tables[$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 = $conn->query($sql);
while ($t = $field_result->fetch_array())
{
$fields[] = $t;
}
$tables[$k]['COLUMN'] = $fields;
}
$conn->close();
$html = '';
// 循环所有表
//print_r($tables);
//列出所有表的表信息列表（表名 表名称）
$html .= '<table border="1" cellspacing="0" cellpadding="0" align="center">';
$html .= '<tbody><tr><th>序号</th><th>表名</th><th>功能说明</th></tr>';
foreach($tables as $k => $v)
{
$sort = $k+1;
$html .= '<td class="c1">' . $sort . '</td>';
$html .= '<td class="c2">' . $v['TABLE_NAME'] . '</td>';
$html .= '<td class="c3">' . $v['TABLE_COMMENT'] .'</td>';
$html .= '</tr>';
}
$html .= '</tbody></table></p>';
$html .= "<br /><br /><br />";
//循环每个表的具体信息
foreach($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'] == 'YES' ? '是':'否') . '</td>';
$html .= '<td class="c5">' . ($f['EXTRA'] == 'auto_increment'?'是':' ') . '</td>';
$html .= '<td class="c6">' . $f['COLUMN_COMMENT'] . '</td>';
$html .= '</tr>';
}
$html .= '</tbody></table></p>';
}
/* 生成word */
//header ( "Content-type:application/vnd.ms-word" );
//header ( "Content-Disposition:attachment;filename={$database['DB_NAME']}数据字典.doc" );
/* 生成excel*/
//header ( "Content-type:application/vnd.ms-excel" );
//header ( "Content-Disposition:attachment;filename={$database['DB_NAME']}数据字典.xls" );
// 输出
echo '<html>
<meta charset="utf-8">
<title>自动生成数据字典</title>
<style>
body,td,th {font-family:"宋体"; font-size:12px;}
table,h1,p{width:960px;margin:0px auto;}
table{border-collapse:collapse;border:1px solid #CCC;background:#efefef;}
table caption{text-align:left; background-color:#fff; line-height:2em; font-size:14px; font-weight:bold; }
table th{text-align:left; font-weight:bold;height:26px; line-height:26px; font-size:12px; border:1px solid #CCC;padding-left:5px;}
table td{height:20px; font-size:12px; border:1px solid #CCC;background-color:#fff;padding-left:5px;}
.c1{ width: 150px;}
.c2{ width: 150px;}
.c3{ width: 80px;}
.c4{ width: 100px;}
.c5{ width: 100px;}
.c6{ width: 300px;}
</style>
<body>';
echo '<h1 style="text-align:center;">'.$database['DB_NAME'].'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',time()) . '</p>';
echo $html;
echo '<p style="text-align:left;margin:20px auto;">总共：' . count($tables) . '个数据表</p>';
echo '</body></html>';
?>运行效果如图：
方法二：其实也差不多 页面样式略有变化
php
<?php
/**
* 自动生成mysql数据字典
*/
header("Content-type: text/html; charset=utf-8");
//配置数据库
$dbserver = "127.0.0.1";
$port = 3306; //端口
$dbusername = "root"; // 数据库连接账号
$dbpassword = "123456"; // 数据库连接密码
$database = "demo"; // 数据库名
// 连接数据库
$mysql_conn = mysqli_connect("$dbserver", "$dbusername", "$dbpassword", "$database",$port) or die("Mysql connect is error.");
mysqli_query($mysql_conn, 'SET NAMES utf8');
$table_result = mysqli_query($mysql_conn, 'show tables');
$no_show_table = array(); // 不需要显示的表
$no_show_field = array(); // 不需要显示的字段
//取得所有的表名
$tables = array();
while ($row = mysqli_fetch_array($table_result)) {
if (!in_array($row[0], $no_show_table)) {
$tables[]['TABLE_NAME'] = $row[0];
}
}
//循环取得所有表的备注及表中列信息
foreach ($tables as $k => $v) {
$sql = 'SELECT * FROM ';
$sql .= 'INFORMATION_SCHEMA.TABLES ';
$sql .= 'WHERE ';
$sql .= "table_name = '{$v['TABLE_NAME']}' AND table_schema = '{$database}'";
$table_result = mysqli_query($mysql_conn, $sql);
while ($t = mysqli_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}'";
$fields = array();
$field_result = mysqli_query($mysql_conn, $sql);
while ($t = mysqli_fetch_array($field_result)) {
$fields[] = $t;
}
$tables[$k]['COLUMN'] = $fields;
}
mysqli_close($mysql_conn);
$html = '';
//循环所有表
foreach ($tables as $k => $v) {
if (!in_array($v['TABLE_NAME'], $no_show_table)) {
$html .= '<h3>' . ($k + 1) . '、' . $v['TABLE_COMMENT'] . ' (' . $v['TABLE_NAME'] . ')</h3>';
$html .= '<table border="1" cellspacing="0" cellpadding="0" width="100%">';
$html .= '<tbody>';
$html .= '<tr>';
$html .= '<th>字段名</th>';
$html .= '<th>数据类型</th>';
$html .= '<th>默认值</th>';
$html .= '<th>允许非空</th>';
$html .= '<th>自动递增</th>';
$html .= '<th>备注</th>';
$html .= '</tr>';
foreach ($v['COLUMN'] as $f) {
if (!in_array($f['COLUMN_NAME'], $no_show_field)) {
$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['EXTRA'] == 'auto_increment' ? '是' : ' ') . '</td>';
$html .= '<td class="c6">' . $f['COLUMN_COMMENT'] . '</td>';
$html .= '</tr>';
}
}
$html .= '</tbody>';
$html .= '</table>';
}
}
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>数据字典</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="renderer" content="webkit|ie-comp|ie-stand">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<style>
body, td, th{font-family: "微软雅黑";font-size: 14px;}
.warp{margin: auto;width: 900px;}
.warp h3{margin: 0px;padding: 0px;line-height: 30px;margin-top: 10px;}
table{border-collapse: collapse;border: 1px solid #CCC;background: #efefef;}
table th{text-align: left;font-weight: bold;height: 26px;line-height: 26px;font-size: 14px;text-align: center;border: 1px solid #CCC; padding: 5px;}
table td{height: 20px;font-size: 14px;border: 1px solid #CCC;background-color: #fff;padding:5px;}
.c1{width: 120px;}
.c2{width: 120px;}
.c3{width: 150px;}
.c4{width: 80px;text-align:center;}
.c5{width: 80px;text-align:center;}
.c6{width: 270px;}
</style>
</head>
<body>
<div class="warp">
<h1 style="text-align:center;">数据字典自动生成</h1>
<?php echo $html; ?>
</div>
</body>
</html>效果如下图：
