本文实例讲述了PHP实现获取并生成数据库字典的方法。分享给大家供大家参考，具体如下：

/**

* 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'] = 'localhost';

$database['DB_NAME'] = 'test';

$database['DB_USER'] = 'root';

$database['DB_PWD'] = '';

$mysql_conn = @mysql_connect("{$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 names utf8");

// 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

//print_r($tables);

foreach($tables as $k => $v)

{

$html .= '

$html .= '

表名：' . $v['TABLE_NAME'] . ' ' . $v['TABLE_COMMENT'] . '';

$html .= '

字段名数据类型默认值允许非空自动递增备注';

$html .= '';

foreach($v['COLUMN'] AS $f)

{

$html .= '

' . $f['COLUMN_NAME'] . '';

$html .= '

' . $f['COLUMN_TYPE'] . '';

$html .= '

' . $f['COLUMN_DEFAULT'] . '';

$html .= '

' . $f['IS_NULLABLE'] . '';

$html .= '

' . ($f['EXTRA'] == 'auto_increment'?'是':' ') . '';

$html .= '

' . $f['COLUMN_COMMENT'] . '';

$html .= '';

}

$html .= '

';

}

/* 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 '

自动生成数据字典

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;}

echo '

'.$database['DB_NAME'].'数据字典

';

echo '

生成时间：' . date('Y-m-d H:i:s') . '

';

echo $html;

echo '

总共：' . count($tables) . '个数据表

';

echo '';

?>

希望本文所述对大家PHP程序设计有所帮助。