使用PHP怎么获取数据库字典？相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。
<?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'] = '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 .= '<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>'; } $html .= '</tbody></table></p>'; } /* 生成word */ //header ( "Content-type:application/vnd.ms-word" ); //header ( "Content-Disposition:attachment;filename={$database['DB_NAME']}数据字典.doc" ); /* 生成excel*/ //header ( "Content-type:application/vnd.ms-excel" ); //header ( "Content-Disposition:attachment;filename={$database['DB_NAME']}数据字典.xls" ); // 输出 echo '<html> <meta charset="utf-8"> <title>自动生成数据字典</title> <style> body,td,th {font-family:"宋体"; font-size:12px;} table,h2,p{width:960px;margin:0px auto;} table{border-collapse:collapse;border:1px solid #CCC;background:#efefef;} table caption{text-align:left; background-color:#fff; line-height:2em; font-size:14px; font-weight:bold; } table th{text-align:left; font-weight:bold;height:26px; line-height:26px; font-size:12px; border:1px solid #CCC;padding-left:5px;} table td{height:20px; font-size:12px; border:1px solid #CCC;background-color:#fff;padding-left:5px;} .c1{ width: 150px;} .c2{ width: 150px;} .c3{ width: 80px;} .c4{ width: 100px;} .c5{ width: 100px;} .c6{ width: 300px;} </style> <body>'; echo '<h2 >'.$database['DB_NAME'].'数据字典</h2>'; echo '<p >生成时间：' . date('Y-m-d H:i:s') . '</p>'; echo $html; echo '<p >总共：' . count($tables) . '个数据表</p>'; echo '</body></html>'; ?>
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