PHP generates mysql data dictionary_PHP tutorial-PHP Tutorial-php.cn

PHP generates mysql data dictionary_PHP tutorial

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Release： 2016-07-13 10:42:12

Original

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Sometimes we get someone else’s database, but there is no data dictionary. This php applet can help you solve it easily.

The code was found online. Of course, this code only generates data dictionary, views, stored procedures, etc. There is no such thing.

<?php
/**
 * 生成mysql数据字典
 */

//配置数据库
$dbserver   = "127.0.0.1";
$dbusername = "root";
$dbpassword = "";
$database      = "";
//其他配置
$title = "数据字典";

$mysql_conn = @mysql_connect("$dbserver", "$dbusername", "$dbpassword") or die("Mysql connect is error.");
mysql_select_db($database, $mysql_conn);
mysql_query('SET NAMES utf8', $mysql_conn);
$table_result = mysql_query('show tables', $mysql_conn);
//取得所有的表名
while ($row = mysql_fetch_array($table_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}'";
    $table_result = mysql_query($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}'";

    $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 .= '<p><h2>'. $v['TABLE_COMMENT'] . ' </h2>';
    $html .= '<table  border="1" cellspacing="0" cellpadding="0" align="center">';
    $html .= '<caption>' . $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 .= '<tr><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>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>'.$title.'</title>
<style>
body,td,th {font-family:"宋体"; font-size:12px;}
table{border-collapse:collapse;border:1px solid #CCC;background:#efefef;}
table caption{text-align:left; background-color:#fff; line-height:2em; font-size:14px; font-weight:bold; }
table th{text-align:left; font-weight:bold;height:26px; line-height:26px; font-size:12px; border:1px solid #CCC;}
table td{height:20px; font-size:12px; border:1px solid #CCC;background-color:#fff;}
.c1{ width: 120px;}
.c2{ width: 120px;}
.c3{ width: 70px;}
.c4{ width: 80px;}
.c5{ width: 80px;}
.c6{ width: 270px;}
</style>
</head>
<body>';
echo '<h1 style="text-align:center;">'.$title.'</h1>';
echo $html;
echo '</body></html>';

?>

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The result after running: