php讀取數(shù)據(jù)庫注釋代碼

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Always Prosperous Yang 2023-08-09 16:28:15

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代碼

<?php
/**
 * 生成mysql數(shù)據(jù)字典
 */
//配置數(shù)據(jù)庫
$dbserver   = "127.0.0.1";
$dbusername = "demo";
$dbpassword = "root";
$database      = "root";
//其他配置
$title = '數(shù)據(jù)字典';
$mysql_conn = mysqli_connect("$dbserver", "$dbusername", "$dbpassword",$database,3307) or die("Mysql connect is error.");
//mysqli_select_db( $mysql_conn,$database);
mysqli_query($mysql_conn,'SET NAMES utf8');
$table_result = mysqli_query($mysql_conn,'show tables');
//取得所有的表名
while ($row = mysqli_fetch_array($table_result)) {
    $tables[]['TABLE_NAME'] = $row[0];
}
//循環(huán)取得所有表的備注及表中列消息
foreach ($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 = 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);
$html = '';
//循環(huán)所有表
foreach ($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>數(shù)據(jù)類型</th><th>默認(rèn)值</th>
        <th>允許非空</th>
        <th>自動(dòng)遞增</th><th>備注</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>';
    }
    $html .= '</tbody></table></p>';
}
//輸出
echo '<html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>'.$title.'</title>
    <style>
    body,td,th {font-family:"宋體"; 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>';

2. 效果