遍历数据库结构-PHP源码-PHP中文网

遍历数据库结构
PHP中文网
发布： 2016-05-23 17:09:57
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遍历数据库结构
<?php
/**
 * 生成mysql数据字典
 */
header("Content-type: text/html; charset=utf-8");
//配置数据库
$dbserver   = "localhost";
$dbusername = "root";
$dbpassword = "";
$database   = "fw";
  
//其他配置
$mysql_conn = @mysql_connect("$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);
  
$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
while($row = mysql_fetch_array($table_result)){
    if(!in_array($row[0],$no_show_table)){
        $tables[]['TABLE_NAME'] = $row[0];
    }
}
//替换所以表的表前缀
if($_GET['prefix']){
    $prefix = 'ych';
    foreach($tables as $key => $val){
        $tableName = $val['TABLE_NAME'];
        $string = explode('_',$tableName);
        if($string[0] != $prefix){  
            $string[0] = $prefix;  
            $newTableName = implode('_', $string);  
            mysql_query('rename table '.$tableName.' TO '.$newTableName);  
        }
    }
    echo "替换成功！";exit();
}
  
//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) {
    $html .= '  <h3>' . ($k + 1) . '、' . $v['TABLE_COMMENT'] .'  （'. $v['TABLE_NAME']. '）</h3>'."\n";
    $html .= '  <table border="1" cellspacing="0" cellpadding="0" width="100%">'."\n";
    $html .= '      <tbody>'."\n";
    $html .= '          <tr>'."\n";
    $html .= '              <th>字段名</th>'."\n";
    $html .= '              <th>数据类型</th>'."\n";
    $html .= '              <th>默认值</th>'."\n";
    $html .= '              <th>允许非空</th>'."\n";
    $html .= '              <th>自动递增</th>'."\n";
    $html .= '              <th>备注</th>'."\n";
    $html .= '          </tr>'."\n";
  
    foreach ($v['COLUMN'] as $f) {
        if(!is_array($no_show_field[$v['TABLE_NAME']])){
            $no_show_field[$v['TABLE_NAME']] = array();
        }
        if(!in_array($f['COLUMN_NAME'],$no_show_field[$v['TABLE_NAME']])){
            $html .= '          <tr>'."\n";
            $html .= '           <td class="c1">' . $f['COLUMN_NAME'] . '</td>'."\n";
            $html .= '            <td class="c2">' . $f['COLUMN_TYPE'] . '</td>'."\n";
            $html .= '            <td class="c3">' . $f['COLUMN_DEFAULT'] . '</td>'."\n";
            $html .= '           <td class="c4">' . $f['IS_NULLABLE'] . '</td>'."\n";
            $html .= '      <td class="c5">' . ($f['EXTRA']=='auto_increment'?'是':' ') . '</td>'."\n";
            $html .= '              <td class="c6">' . $f['COLUMN_COMMENT'] . '</td>'."\n";
            $html .= '          </tr>'."\n";
        }
    }
    $html .= '      </tbody>'."\n";
    $html .= '  </table>'."\n";
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>数据库数据字典</title>
<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">
<?php echo $html; ?>
</div>
</body>
</html>
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