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Jun 06, 2016 pm 07:48 PM

php sql Discover Export document Own

发现自己之前写的php导出sql数据为Excel文件在导出一些数据的时候出现了精度的问题，比如导出身份证号的时候会把后面变成0000。暂时先把这个问题留下，有空去看看到底是什么问题。写了一个导出sql的工具。稍微加了下界面，把功能也做多了点，简单来说，就是

发现自己之前写的php导出sql数据为Excel文件在导出一些数据的时候出现了精度的问题，比如导出身份证号的时候会把后面变成0000。暂时先把这个问题留下，有空去看看到底是什么问题。

写了一个导出sql的工具。稍微加了下界面，把功能也做多了点，简单来说，就是三个功能：

　　1.直接在浏览器上显示sql文件内容。

　　2.直接导出到服务器上，要求目录要可写。

　　3.直接下载到本地，脱库时感觉还不错。

好了直接贴上代码：

sqldump.php

<span>php
    </span><span>if</span> (<span>isset</span>(<span>$_REQUEST</span>['option'<span>])) {
        </span><span>define</span>('DOWNLOAD', <span>$_REQUEST</span>['option'<span>]);
    }</span><span>else</span><span>{
        </span><span>define</span>('DOWNLOAD',0);<span>//</span><span>0代表直接显示,1代表下载,2代表导出在本地</span>
<span>    }
    </span><span>if</span> (DOWNLOAD != 1<span>) {
        </span><span>header</span>("Content-type:text/html;charset=utf-8"<span>);
    }
    </span><span>$cfg_dbhost</span> ='localhost'<span>;
    </span><span>$cfg_dbname</span> ='mysql'<span>;
    </span><span>$cfg_dbuser</span> ='root'<span>;
    </span><span>$cfg_dbpwd</span> =''<span>;
    </span><span>$cfg_db_language</span> ='utf8'<span>;

    </span><span>//</span><span>配置信息</span>
    <span>$cfg_dbhost</span> = <span>isset</span>(<span>$_REQUEST</span>['dbhost'])?<span>$_REQUEST</span>['dbhost']:<span>$cfg_dbhost</span><span>;
    </span><span>$cfg_dbname</span> = <span>isset</span>(<span>$_REQUEST</span>['dbname'])?<span>$_REQUEST</span>['dbname']:<span>$cfg_dbname</span><span>;
    </span><span>$cfg_dbuser</span> = <span>isset</span>(<span>$_REQUEST</span>['dbuser'])?<span>$_REQUEST</span>['dbuser']:<span>$cfg_dbuser</span><span>;
    </span><span>$cfg_dbpwd</span> = <span>isset</span>(<span>$_REQUEST</span>['dbpwd'])?<span>$_REQUEST</span>['dbpwd']:<span>$cfg_dbpwd</span><span>;
    </span><span>$cfg_db_language</span> = <span>isset</span>(<span>$_REQUEST</span>['dbc'])?<span>$_REQUEST</span>['dbc']:<span>$cfg_db_language</span><span>;
    
    </span><span>$to_file_name</span> =<span>isset</span>(<span>$_REQUEST</span>['dbtable'])?<span>$_REQUEST</span>['dbtable'].".sql":<span>$cfg_dbname</span>.".sql"<span>;

    </span><span>if</span> (DOWNLOAD==2<span>) {
        </span><span>$to_file_name</span> =<span>isset</span>(<span>$_REQUEST</span>['dbtable'])?<span>dirname</span>(<span>__FILE__</span>).DIRECTORY_SEPARATOR.<span>$_REQUEST</span>['dbtable'].".sql":<span>dirname</span>(<span>__FILE__</span>).DIRECTORY_SEPARATOR.<span>$cfg_dbname</span>.".sql"<span>;
    }
    </span><span>//</span><span> END 配置

    //链接数据库</span>
    <span>$link</span> = @<span>mysql_connect</span>(<span>$cfg_dbhost</span>,<span>$cfg_dbuser</span>,<span>$cfg_dbpwd</span><span>);
    </span><span>$link</span>==<span>null</span>?<span>die</span>('mysql connect error'):''<span>;
    @</span><span>mysql_select_db</span>(<span>$cfg_dbname</span><span>);
    </span><span>//</span><span>选择编码</span>
    @<span>mysql_query</span>("set names ".<span>$cfg_db_language</span><span>);
    </span><span>//</span><span>数据库中有哪些表</span>
    <span>$tabList</span> = <span>isset</span>(<span>$_REQUEST</span>['dbtable'])?<span>array</span>("{<span>$_REQUEST</span>['dbtable']}"):list_tables(<span>$cfg_dbname</span><span>);
    </span><span>$tabList</span>==<span>null</span>?<span>die</span>('no tables found'):''<span>;
    </span><span>if</span> (DOWNLOAD==1<span>) {
        </span><span>Header</span>("Content-type: application/octet-stream"<span>);
        </span><span>Header</span>("Accept-Ranges: bytes"<span>);
        </span><span>Header</span>("Content-Disposition: attachment; filename=".<span>$to_file_name</span><span>);
    }
    </span><span>if</span> (DOWNLOAD==2<span>) {
        </span><span>echo</span> "正在导出...<hr>"<span>;
    }
    </span><span>$info</span> = "-- ----------------------------\r\n"<span>;
    </span><span>$info</span> .= "-- 备份日期：".<span>date</span>("Y-m-d H:i:s",<span>time</span>())."\r\n"<span>;
    </span><span>$info</span> .= "-- ----------------------------\r\n\r\n"<span>;
    </span><span>if</span> (DOWNLOAD==2<span>) {
        </span><span>file_put_contents</span>(<span>$to_file_name</span>,<span>$info</span>,<span>FILE_APPEND);
    }</span><span>else</span><span>{
        </span><span>echo</span> <span>$info</span><span>;
    }
    </span><span>//</span><span>将每个表的表结构导出到文件</span>
    <span>foreach</span>(<span>$tabList</span> <span>as</span> <span>$val</span><span>){
        </span><span>$sql</span> = "show create table ".<span>$val</span><span>;
        </span><span>$res</span> = @<span>mysql_query</span>(<span>$sql</span>,<span>$link</span><span>);
        </span><span>if</span> (<span>$res</span>==<span>null</span><span>) {
            </span><span>die</span>('table `'.<span>$val</span>.'` not EXISTS'<span>);
        }
        </span><span>$row</span> = @<span>mysql_fetch_array</span>(<span>$res</span><span>);
        </span><span>$info</span> = "-- ----------------------------\r\n"<span>;
        </span><span>$info</span> .= "-- Table structure for `".<span>$val</span>."`\r\n"<span>;
        </span><span>$info</span> .= "-- ----------------------------\r\n"<span>;
        </span><span>$info</span> .= "DROP TABLE IF EXISTS `".<span>$val</span>."`;\r\n"<span>;
        </span><span>$sqlStr</span> = <span>$info</span>.<span>$row</span>[1].";\r\n\r\n"<span>;
        </span><span>if</span> (DOWNLOAD==2<span>) {
            </span><span>//</span><span>追加到文件</span>
            <span>file_put_contents</span>(<span>$to_file_name</span>,<span>$sqlStr</span>,<span>FILE_APPEND);
        }</span><span>else</span><span>{
            </span><span>echo</span> <span>$sqlStr</span><span>;
        }
        </span><span>//</span><span>释放资源</span>
        @<span>mysql_free_result</span>(<span>$res</span><span>);
    }

    </span><span>//</span><span>将每个表的数据导出到文件</span>
    <span>foreach</span>(<span>$tabList</span> <span>as</span> <span>$val</span><span>){
        </span><span>if</span>(DOWNLOAD==2<span>){
            </span><span>echo</span> "正在导出表`".<span>$val</span>."`...<br>"<span>;
        }
        </span><span>$sql</span> = "select * from ".<span>$val</span><span>;
        </span><span>$res</span> = @<span>mysql_query</span>(<span>$sql</span>,<span>$link</span><span>);
        </span><span>//</span><span>如果表中没有数据，则继续下一张表</span>
        <span>if</span>(@<span>mysql_num_rows</span>(<span>$res</span>)continue<span>;
        </span><span>//
</span>        <span>$info</span> = "-- ----------------------------\r\n"<span>;
        </span><span>$info</span> .= "-- Records for `".<span>$val</span>."`\r\n"<span>;
        </span><span>$info</span> .= "-- ----------------------------\r\n"<span>;
        </span><span>if</span> (DOWNLOAD==2<span>) {
            </span><span>file_put_contents</span>(<span>$to_file_name</span>,<span>$info</span>,<span>FILE_APPEND);
        }</span><span>else</span><span>{
            </span><span>echo</span> <span>$info</span><span>;
        }
        </span><span>//</span><span>读取数据</span>
        <span>while</span>(<span>$row</span> = @<span>mysql_fetch_row</span>(<span>$res</span><span>)){
            </span><span>$sqlStr</span> = "INSERT INTO `".<span>$val</span>."` VALUES ("<span>;
            </span><span>foreach</span>(<span>$row</span> <span>as</span> <span>$zd</span><span>){
                </span><span>$sqlStr</span> .= "'".<span>$zd</span>."', "<span>;
            }
            </span><span>//</span><span>去掉最后一个逗号和空格</span>
            <span>$sqlStr</span> = <span>substr</span>(<span>$sqlStr</span>,0,<span>strlen</span>(<span>$sqlStr</span>)-2<span>);
            </span><span>$sqlStr</span> .= ");\r\n"<span>;
            </span><span>if</span> (DOWNLOAD==2<span>) {
                </span><span>file_put_contents</span>(<span>$to_file_name</span>,<span>$sqlStr</span>,<span>FILE_APPEND);
            }</span><span>else</span><span>{
                </span><span>echo</span> <span>$sqlStr</span><span>;
            }
        }
        </span><span>//</span><span>释放资源</span>
        @<span>mysql_free_result</span>(<span>$res</span><span>);
        </span><span>if</span> (DOWNLOAD==2<span>) {
            </span><span>file_put_contents</span>(<span>$to_file_name</span>,"\r\n",<span>FILE_APPEND);
        }</span><span>else</span><span>{
            </span><span>echo</span> "\r\n"<span>;
        }
    }
    </span><span>if</span>(DOWNLOAD==2<span>){
        </span><span>echo</span> "<hr>导出成功。"<span>;
    }
</span><span>//</span><span>    echo "End!";</span>
    <span>function</span> list_tables(<span>$database</span><span>)
    {
        </span><span>$sql</span>='SHOW TABLES FROM '.<span>$database</span><span>;
        </span><span>$rs</span> = <span>mysql_query</span>(<span>$sql</span><span>);
        </span><span>$tables</span> = <span>array</span><span>();
        </span><span>while</span> (<span>$row</span> = <span>mysql_fetch_row</span>(<span>$rs</span><span>)) {
            </span><span>$tables</span>[] = <span>$row</span>[0<span>];
        }
        </span><span>mysql_free_result</span>(<span>$rs</span><span>);
        </span><span>return</span> <span>$tables</span><span>;
    }

</span>?>

Copy after login

然后是界面的东西了，为的是不让自己去记这个烦人的参数。

sqldumpclient.html

<span><span>html</span><span>></span>
<span><span>head</span><span>></span>
<span><span>title</span><span>></span>sqldump客户端<span></span><span>title</span><span>></span>
<span><span>meta </span><span>charset</span><span>='utf-8'</span><span>></span>
<span><span>script </span><span>type</span><span>="text/javascript"</span><span>></span>
    <span>function</span><span> setaction () {
        $(</span><span>'</span><span>cform</span><span>'</span><span>).action</span><span>=</span><span>$(</span><span>'</span><span>act</span><span>'</span><span>).value;
        inputs</span><span>=</span><span>document.getElementsByTagName(</span><span>'</span><span>input</span><span>'</span><span>);
        </span><span>for</span><span>(</span><span>var</span><span> i </span><span>=</span><span>1</span><span>;i</span><span><span>inputs.length</span><span>-</span><span>4</span><span>;i</span><span>++</span><span>){
            </span><span>if</span><span> (inputs[i].value</span><span>!=</span><span>''</span><span>) {
                inputs[i].name</span><span>=</span><span>inputs[i].id;
            }
        }

    }
    </span><span>function</span><span> $(id){
        </span><span>return</span><span> document.getElementById(id);
    }
</span><span></span><span>script</span><span>></span>
<span></span><span>head</span><span>></span>
<span><span>body</span><span>></span>
<span><span>center</span><span>></span>    
<span><span>h1 </span><span>align</span><span>="center"</span><span>></span>PHP sql dump<span></span><span>h1</span><span>></span>
<span><span>h3 </span><span>align</span><span>="right"</span><span>></span>Author:Medici.Yan@gmail.com<span></span><span>h3</span><span>></span>
    <span><span>form </span><span>method</span><span>="post"</span><span> id</span><span>='cform' </span><span>onsubmit</span><span>="setaction()"</span><span>></span>
            <span><span>fieldset</span><span>></span>
            <span><span>table</span><span>></span>
                <span><span>legend</span><span>></span>配置<span></span><span>legend</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>label </span><span>for</span><span>="act"</span><span>></span>脚本地址:<span></span><span>label</span><span>></span><span>td</span><span>></span>
                <span><span>td</span><span>><span>input </span><span>type</span><span>="text"</span><span> id</span><span>='act' </span><span>placeholder</span><span>="http://www.example.com/sqldump.php"</span><span>/></span><span>td</span><span>></span>
                <span><span>td </span><span>rowspan</span><span>="7"</span><span> width</span><span>="100"</span><span>></span>使用方法：把sqldump.php传到服务器上,然后在这里填写相关参数，也可以直接访问脚本<span></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>label </span><span>for</span><span>="dbhost"</span><span>></span>数据库地址:<span></span><span>label</span><span>></span><span>td</span><span>></span>
                <span><span>td</span><span>><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="dbhost"</span><span> placeholder</span><span>="默认:localhost"</span><span>/></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>label </span><span>for</span><span>="dbname"</span><span>></span>数据库名:<span></span><span>label</span><span>></span><span>td</span><span>></span>
                <span><span>td</span><span>><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="dbname"</span><span> placeholder</span><span>="默认:mysql"</span><span>/></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>label </span><span>for</span><span>="dbuser"</span><span>></span>用户名:<span></span><span>label</span><span>></span><span>td</span><span>></span>
                <span><span>td</span><span>><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="dbuser"</span><span> placeholder</span><span>="默认:root"</span><span>/></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>label </span><span>for</span><span>="dbpwd"</span><span>></span>密码:<span></span><span>label</span><span>></span><span>td</span><span>></span>
                <span><span>td</span><span>><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="dbpwd"</span><span> placeholder</span><span>="默认:<empty>"</empty></span><span>/></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>label </span><span>for</span><span>="dbc"</span><span>></span>字符集:<span></span><span>label</span><span>></span><span>td</span><span>></span>
                    <span><span>td</span><span>></span>
                    <span><span>input </span><span>list</span><span>="charlist"</span><span> id</span><span>="dbc"</span><span> placeholder</span><span>="默认:utf8"</span> <span>/></span>
                        <span><span>datalist </span><span>id</span><span>="charlist"</span><span>></span>
                            <span><span>option </span><span>value</span><span>="utf8"</span> <span>/></span>
                            <span><span>option </span><span>value</span><span>="gbk"</span> <span>/></span>
                            <span><span>option </span><span>value</span><span>="gb2312"</span> <span>/></span>
                        <span></span><span>datalist</span><span>></span>    
                    <span></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>label </span><span>for</span><span>="dbtable"</span><span>></span>表名:<span></span><span>label</span><span>></span><span>td</span><span>></span>
                <span><span>td</span><span>><span>input </span><span>type</span><span>="text"</span><span> id</span><span>="dbtable"</span><span> placeholder</span><span>="为空代表所有表"</span><span>/></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>label </span><span>for</span><span>="option"</span><span>></span>导出方式:<span></span><span>label</span><span>></span><span>td</span><span>></span>
                <span><span>td</span><span>></span>
                <span><span>input </span><span>type</span><span>="radio"</span><span> id</span><span>="option"</span><span> name</span><span>="option"</span><span> value</span><span>="0"</span><span> checked</span><span>="checked"</span><span>></span><span>浏览器显示
                </span><span><span>input </span><span>type</span><span>="radio"</span><span> id</span><span>="option"</span><span> name</span><span>="option"</span><span> value</span><span>="1"</span><span>></span><span>下载到本地
                </span><span><span>input </span><span>type</span><span>="radio"</span><span> id</span><span>="option"</span><span> name</span><span>="option"</span><span> value</span><span>="2"</span><span>></span><span>导出至服务器
                </span><span></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span><span>tr</span><span>></span>
                <span><span>td</span><span>><span>input </span><span>type</span><span>="submit"</span><span> value</span><span>="开始"</span> <span>/></span><span>td</span><span>></span>
                <span></span><span>tr</span><span>></span>
                <span></span><span>table</span><span>></span>
            <span></span><span>fieldset</span><span>></span>
    <span></span><span>form</span><span>></span>
<span></span><span>center</span><span>></span>
<span></span><span>body</span><span>></span>
<span></span><span>html</span><span>></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

Copy after login

用法也很简单，把sqldump.php传到服务器上，然后在本地运行sqldumpclient.html，写上相关参数就OK。

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A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? Apr 03, 2025 am 12:03 AM

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

Explain the match expression (PHP 8 ) and how it differs from switch. Apr 06, 2025 am 12:03 AM

In PHP8, match expressions are a new control structure that returns different results based on the value of the expression. 1) It is similar to a switch statement, but returns a value instead of an execution statement block. 2) The match expression is strictly compared (===), which improves security. 3) It avoids possible break omissions in switch statements and enhances the simplicity and readability of the code.

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