PHP实现的通过参数生成MYSQL语句类完整实例


Posted in PHP onApril 11, 2016

本文实例讲述了PHP实现的通过参数生成MYSQL语句类。分享给大家供大家参考,具体如下:

这个类可以通过指定的表和字段参数创建SELECT ,INSERT , UPDATE 和 DELETE 语句。

这个类可以创建SQL语句的WHERE条件,像LIKE的查询语句,使用LEFT JOIN和ORDER 语句

<?php
 /* *******************************************************************
Example file
This example shows how to use the MyLibSQLGen class
The example is based on the following MySQL table:
CREATE TABLE customer (
 id int(10) unsigned NOT NULL auto_increment,
 name varchar(60) NOT NULL default '',
 address varchar(60) NOT NULL default '',
 city varchar(60) NOT NULL default '',
 PRIMARY KEY (cust_id)
) TYPE=MyISAM;
******************************************************************* */ 
 require_once ( " class_mylib_SQLGen-1.0.php " );
 $fields = Array ( " name " , " address " , " city " );
 $values = Array ( " Fadjar " , " Resultmang Raya Street " , " Jakarta " );
 $tables = Array ( " customer " );
 echo  " <b>Result Generate Insert</b><br> " ;
 $object = new MyLibSQLGen();
 $object -> clear_all_assign(); // to refresh all property but it no need when first time execute 
 $object -> setFields( $fields );
 $object -> setValues( $values );
 $object -> setTables( $tables );
 if ( ! $object -> getInsertSQL()){ echo  $object -> Error; exit ;}
 else { $sql = $object -> Result; echo  $sql . " <br> " ;}
 echo  " <b>Result Generate Update</b><br> " ;
 $fields = Array ( " name " , " address " , " city " );
 $values = Array ( " Fadjar " , " Resultmang Raya Street " , " Jakarta " );
 $tables = Array ( " customer " );
 $id = 1 ;
 $conditions [ 0 ][ " condition " ] = " id='$id' " ;
 $conditions [ 0 ][ " connection " ] = "" ;
 $object -> clear_all_assign();
 $object -> setFields( $fields );
 $object -> setValues( $values );
 $object -> setTables( $tables );
 $object -> setConditions( $conditions );
 if ( ! $object -> getUpdateSQL()){ echo  $object -> Error; exit ;}
 else { $sql = $object -> Result; echo  $sql . " <br> " ;}
 echo  " <b>Result Generate Delete</b><br> " ;
 $tables = Array ( " customer " );
 $conditions [ 0 ][ " condition " ] = " id='1' " ;
 $conditions [ 0 ][ " connection " ] = " OR " ;
 $conditions [ 1 ][ " condition " ] = " id='2' " ;
 $conditions [ 1 ][ " connection " ] = " OR " ;
 $conditions [ 2 ][ " condition " ] = " id='4' " ;
 $conditions [ 2 ][ " connection " ] = "" ;
 $object -> clear_all_assign();
 $object -> setTables( $tables );
 $object -> setConditions( $conditions );
 if ( ! $object -> getDeleteSQL()){ echo  $object -> Error; exit ;}
 else { $sql = $object -> Result; echo  $sql . " <br> " ;}
 echo  " <b>Result Generate List</b><br> " ;
 $fields = Array ( " id " , " name " , " address " , " city " );
 $tables = Array ( " customer " );
 $id = 1 ;
 $conditions [ 0 ][ " condition " ] = " id='$id' " ;
 $conditions [ 0 ][ " connection " ] = "" ;
 $object -> clear_all_assign();
 $object -> setFields( $fields );
 $object -> setTables( $tables );
 $object -> setConditions( $conditions );
 if ( ! $object -> getQuerySQL()){ echo  $object -> Error; exit ;}
 else { $sql = $object -> Result; echo  $sql . " <br> " ;}
 echo  " <b>Result Generate List with search on all fields</b><br> " ;
 $fields = Array ( " id " , " name " , " address " , " city " );
 $tables = Array ( " customer " );
 $id = 1 ;
 $search = " Fadjar Nurswanto " ;
 $object -> clear_all_assign();
 $object -> setFields( $fields );
 $object -> setTables( $tables );
 $object -> setSearch( $search );
 if ( ! $object -> getQuerySQL()){ echo  $object -> Error; exit ;}
 else { $sql = $object -> Result; echo  $sql . " <br> " ;}
 echo  " <b>Result Generate List with search on some fields</b><br> " ;
 $fields = Array ( " id " , " name " , " address " , " city " );
 $tables = Array ( " customer " );
 $id = 1 ;
 $search = Array (
       " name " => " Fadjar Nurswanto " , 
       " address " => " Tomang Raya " 
    );
 $object -> clear_all_assign();
 $object -> setFields( $fields );
 $object -> setTables( $tables );
 $object -> setSearch( $search );
 if ( ! $object -> getQuerySQL()){ echo  $object -> Error; exit ;}
 else { $sql = $object -> Result; echo  $sql . " <br> " ;}
?>

类代码:

<?php
 /* 
Created By    : Fadjar Nurswanto <fajr_n@rindudendam.net>
DATE      : 2006-08-02
PRODUCTNAME    : class MyLibSQLGen
PRODUCTVERSION  : 1.0.0
DESCRIPTION    : class yang berfungsi untuk menggenerate SQL
DENPENCIES    :
 */ 
 class MyLibSQLGen
{
   var  $Result ;
   var  $Tables = Array ();
   var  $Values = Array ();
   var  $Fields = Array ();
   var  $Conditions = Array ();
   var  $Condition ;
   var  $LeftJoin = Array ();
   var  $Search ;
   var  $Sort = " ASC " ;
   var  $Order ;
   var  $Error ;
   function MyLibSQLGen(){}
   function BuildCondition()
  {
     $funct = " BuildCondition " ;
     $className = get_class ( $this );
     $conditions = $this -> getConditions();
     if ( ! $conditions ){ $this -> dbgDone( $funct ); return  true ;}
     if ( ! is_array ( $conditions ))
    {
       $this -> Error = " $className::$funct Variable conditions not Array " ;
       return ;
    }
     for ( $i = 0 ; $i < count ( $conditions ); $i ++ )
    {
       $this -> Condition .= $conditions [ $i ][ " condition " ] . "  " . $conditions [ $i ][ " connection " ] . "  " ;
    }
     return  true ;
  }
   function BuildLeftJoin()
  {
     $funct = " BuildLeftJoin " ;
     $className = get_class ( $this );
     if ( ! $this -> getLeftJoin()){ $this -> Error = " $className::$funct Property LeftJoin was empty " ; return ;}
     $LeftJoinVars = $this -> getLeftJoin();
     $hasil = false ;
     foreach ( $LeftJoinVars  as  $LeftJoinVar )
    {
      @ $hasil .= " LEFT JOIN " . $LeftJoinVar [ " table " ];
       foreach ( $LeftJoinVar [ " on " ] as  $var )
      {
        @ $condvar .= $var [ " condition " ] . "  " . $var [ " connection " ] . "  " ;
      }
       $hasil .= " ON ( " . $condvar . " ) " ;
       unset ( $condvar );
    }
     $this -> ResultLeftJoin = $hasil ;
     return  true ;
  }
   function BuildOrder()
  {
     $funct = " BuildOrder " ;
     $className = get_class ( $this );
     if ( ! $this -> getOrder()){ $this -> Error = " $className::$funct Property Order was empty " ; return ;}
     if ( ! $this -> getFields()){ $this -> Error = " $className::$funct Property Fields was empty " ; return ;}
     $Fields = $this -> getFields();
     $Orders = $this -> getOrder();
     if ( ereg ( " , " , $Orders )){ $Orders = explode ( " , " , $Order );}
     if ( ! is_array ( $Orders )){ $Orders = Array ( $Orders );}
     foreach ( $Orders  as  $Order )
    {
       if ( ! is_numeric ( $Order )){ $this -> Error = " $className::$funct Property Order not Numeric " ; return ;}
       if ( $Order  >  count ( $this -> Fields)){ $this -> Error = " $className::$funct Max value of property Sort is " . count ( $this -> Fields); return ;}
      @ $xorder .= $Fields [ $Order ] . " , " ;
    }
     $this -> ResultOrder = " ORDER BY " . substr ( $xorder , 0 ,- 1 );
     return  true ;
  }
   function BuildSearch()
  {
     $funct = " BuildSearch " ;
     $className = get_class ( $this );
     if ( ! $this -> getSearch()){ $this -> Error = " $className::$funct Property Search was empty " ; return ;}
     if ( ! $this -> getFields()){ $this -> Error = " $className::$funct Property Fields was empty " ; return ;}
     $Fields = $this -> getFields();
     $xvalue = $this -> getSearch();
     if ( is_array ( $xvalue ))
    {
       foreach ( $Fields  as  $field )
      {
         if (@ $xvalue [ $field ])
        {
           $Values = explode ( "  " , $xvalue [ $field ]);
           foreach ( $Values  as  $Value )
          {
            @ $hasil .= $field . " LIKE '% " . $Value . " %' OR " ;
          }
           if ( $hasil )
          {
            @ $hasil_final .= " ( " . substr ( $hasil , 0 ,- 4 ) . " ) AND " ;
             unset ( $hasil );
          }
        }
      }
       $hasil = $hasil_final ;
    }
     else 
    {
       foreach ( $Fields  as  $field )
      {
         $Values = explode ( "  " , $xvalue );
         foreach ( $Values  as  $Value )
        {
          @ $hasil .= $field . " LIKE '% " . $Value . " %' OR " ;
        }
      }
    }
     $this -> ResultSearch = substr ( $hasil , 0 ,- 4 );
     return  true ;
  }
   function clear_all_assign()
  {
     $this -> Result = null ;
     $this -> ResultSearch = null ;
     $this -> ResultLeftJoin = null ;
     $this -> Result = null ;
     $this -> Tables = Array ();
     $this -> Values = Array ();
     $this -> Fields = Array ();
     $this -> Conditions = Array ();
     $this -> Condition = null ;
     $this -> LeftJoin = Array ();
     $this -> Sort = " ASC " ;
     $this -> Order = null ;
     $this -> Search = null ;
     $this -> fieldSQL = null ;
     $this -> valueSQL = null ;
     $this -> partSQL = null ;
     $this -> Error = null ;
     return  true ;
  }
   function CombineFieldValue( $manual = false )
  {
     $funct = " CombineFieldsPostVar " ;
     $className = get_class ( $this );
     $fields = $this -> getFields();
     $values = $this -> getValues();
     if ( ! is_array ( $fields ))
    {
       $this -> Error = " $className::$funct Variable fields not Array " ;
       return ;
    }
     if ( ! is_array ( $values ))
    {
       $this -> Error = " $className::$funct Variable values not Array " ;
       return ;
    }
     if ( count ( $fields ) != count ( $values ))
    {
       $this -> Error = " $className::$funct Count of fields and values not match " ;
       return ;
    }
     for ( $i = 0 ; $i < count ( $fields ); $i ++ )
    {
      @ $this -> fieldSQL .= $fields [ $i ] . " , " ;
       if ( $fields [ $i ] ==  " pwd "  ||  $fields [ $i ] ==  " password "  ||  $fields [ $i ] ==  " pwd " )
      {
        @ $this -> valueSQL .= " password(' " . $values [ $i ] . " '), " ;
        @ $this -> partSQL .= $fields [ $i ] . " =password(' " . $values [ $i ] . " '), " ;
      }
       else 
      {
         if ( is_numeric ( $values [ $i ]))
        {
          @ $this -> valueSQL .= $values [ $i ] . " , " ;
          @ $this -> partSQL .= $fields [ $i ] . " = " . $values [ $i ] . " , " ;
        }
         else 
        {
          @ $this -> valueSQL .= " ' " . $values [ $i ] . " ', " ;
          @ $this -> partSQL .= $fields [ $i ] . " =' " . $values [ $i ] . " ', " ;
        }
      }
    }
     $this -> fieldSQL = substr ( $this -> fieldSQL , 0 ,- 1 );
     $this -> valueSQL = substr ( $this -> valueSQL , 0 ,- 1 );
     $this -> partSQL = substr ( $this -> partSQL , 0 ,- 1 );
     return  true ;
  }
   function getDeleteSQL()
  {
     $funct = " getDeleteSQL " ;
     $className = get_class ( $this );
     $Tables = $this -> getTables();
     if ( ! $Tables  ||  ! count ( $Tables ))
    {
       $this -> dbgFailed( $funct );
       $this -> Error = " $className::$funct Table was empty " ;
       return ;
    }
     for ( $i = 0 ; $i < count ( $Tables ); $i ++ )
    {
      @ $Table .= $Tables [ $i ] . " , " ;
    }
     $Table = substr ( $Table , 0 ,- 1 );
     $sql = " DELETE FROM " . $Table ;
     if ( $this -> getConditions())
    {
       if ( ! $this -> BuildCondition()){ $this -> dbgFailed( $funct ); return ;}
       $sql .= " WHERE " . $this -> getCondition();
    }
     $this -> Result = $sql ;
     return  true ;
  }
   function getInsertSQL()
  {
     $funct = " getInsertSQL " ;
     $className = get_class ( $this );
     if ( ! $this -> getValues()){ $this -> Error = " $className::$funct Property Values was empty " ; return ;}
     if ( ! $this -> getFields()){ $this -> Error = " $className::$funct Property Fields was empty " ; return ;}
     if ( ! $this -> getTables()){ $this -> Error = " $className::$funct Property Tables was empty " ; return ;}
     if ( ! $this -> CombineFieldValue()){ $this -> dbgFailed( $funct ); return ;}
     $Tables = $this -> getTables();
     $sql = " INSERT INTO " . $Tables [ 0 ] . " ( " . $this -> fieldSQL . " ) VALUES ( " . $this -> valueSQL . " ) " ;
     $this -> Result = $sql ;
     return  true ;
  }
   function getUpdateSQL()
  {
     $funct = " getUpdateSQL " ;
     $className = get_class ( $this );
     if ( ! $this -> getValues()){ $this -> Error = " $className::$funct Property Values was empty " ; return ;}
     if ( ! $this -> getFields()){ $this -> Error = " $className::$funct Property Fields was empty " ; return ;}
     if ( ! $this -> getTables()){ $this -> Error = " $className::$funct Property Tables was empty " ; return ;}
     if ( ! $this -> CombineFieldValue()){ $this -> dbgFailed( $funct ); return ;}
     if ( ! $this -> BuildCondition()){ $this -> dbgFailed( $funct ); return ;}
     $Tables = $this -> getTables();
     $sql = " UPDATE " . $Tables [ 0 ] . " SET " . $this -> partSQL . " WHERE " . $this -> getCondition();
     $this -> Result = $sql ;
     return  true ;
  }
   function getQuerySQL()
  {
     $funct = " getQuerySQL " ;
     $className = get_class ( $this );
     if ( ! $this -> getFields()){ $this -> Error = " $className::$funct Property Fields was empty " ; return ;}
     if ( ! $this -> getTables()){ $this -> Error = " $className::$funct Property Tables was empty " ; return ;}
     $Fields = $this -> getFields();
     $Tables = $this -> getTables();
     foreach ( $Fields  as  $Field ){@ $sql_raw .= $Field . " , " ;}
     foreach ( $Tables  as  $Table ){@ $sql_table .= $Table . " , " ;}
     $this -> Result = " SELECT " . substr ( $sql_raw , 0 ,- 1 ) . " FROM " . substr ( $sql_table , 0 ,- 1 );
     if ( $this -> getLeftJoin())
    {
       if ( ! $this -> BuildLeftJoins()){ $this -> dbgFailed( $funct ); return ;}
       $this -> Result .= "  " . $this -> ResultLeftJoin;
    }
     if ( $this -> getConditions())
    {
       if ( ! $this -> BuildCondition()){ $this -> dbgFailed( $funct ); return ;}
       $this -> Result .= " WHERE ( " . $this -> Condition . " ) " ;
    }
     if ( $this -> getSearch())
    {
       if ( ! $this -> BuildSearch()){ $this -> dbgFailed( $funct ); return ;}
       if ( $this -> ResultSearch)
      {
         if ( eregi ( " WHERE " , $this -> Result)){ $this -> Result .= " AND " . $this -> ResultSearch;}
         else { $this -> Result .= " WHERE " . $this -> ResultSearch;}
      }
    }
     if ( $this -> getOrder())
    {
       if ( ! $this -> BuildOrder()){ $this -> dbgFailed( $funct ); return ;}
       $this -> Result .= "  " . $this -> ResultOrder;
    }
     if ( $this -> getSort())
    {
       if (@ $this -> ResultOrder)
      {
         $this -> Result .= "  " . $this -> getSort();
      }
    }
     return  true ;
  }
   function getCondition(){ return @ $this -> Condition;}
   function getConditions(){ if ( count (@ $this -> Conditions) &&  is_array (@ $this -> Conditions)){ return @ $this -> Conditions;}}
   function getFields(){ if ( count (@ $this -> Fields) &&  is_array (@ $this -> Fields)){ return @ $this -> Fields;}}
   function getLeftJoin(){ if ( count (@ $this -> LeftJoin) &&  is_array (@ $this -> LeftJoin)){ return @ $this -> LeftJoin;}}
   function getOrder(){ return @ $this -> Order;}
   function getSearch(){ return @ $this -> Search;}
   function getSort(){ return @ $this -> Sort ;}
   function getTables(){ if ( count (@ $this -> Tables) &&  is_array (@ $this -> Tables)){ return @ $this -> Tables;}}
   function getValues(){ if ( count (@ $this -> Values) &&  is_array (@ $this -> Values)){ return @ $this -> Values;}}
   function setCondition( $input ){ $this -> Condition = $input ;}
   function setConditions( $input )
  {
     if ( is_array ( $input )){ $this -> Conditions = $input ;}
     else { $this -> Error = get_class ( $this ) . " ::setConditions Parameter input not array " ; return ;}
  }
   function setFields( $input )
  {
     if ( is_array ( $input )){ $this -> Fields = $input ;}
     else { $this -> Error = get_class ( $this ) . " ::setFields Parameter input not array " ; return ;}
  }
   function setLeftJoin( $input )
  {
     if ( is_array ( $input )){ $this -> LeftJoin = $input ;}
     else { $this -> Error = get_class ( $this ) . " ::setFields Parameter input not array " ; return ;}
  }
   function setOrder( $input ){ $this -> Order = $input ;}
   function setSearch( $input ){ $this -> Search = $input ;}
   function setSort( $input ){ $this -> Sort = $input ;}
   function setTables( $input )
  {
     if ( is_array ( $input )){ $this -> Tables = $input ;}
     else { $this -> Error = get_class ( $this ) . " ::setTables Parameter input not array " ; return ;}
  }
   function setValues( $input )
  {
     if ( is_array ( $input )){ $this -> Values = $input ;}
     else { $this -> Error = get_class ( $this ) . " ::setValues Parameter input not array " ; return ;}
  }
}
?>

希望本文所述对大家PHP程序设计有所帮助。

PHP 相关文章推荐
php带密码功能并下载远程文件保存本地指定目录 修改加强版
May 16 PHP
Zend的MVC机制使用分析(一)
May 02 PHP
php 发送带附件邮件示例
Jan 23 PHP
curl实现站外采集的方法和技巧
Jan 31 PHP
php中file_get_contents与curl性能比较分析
Nov 08 PHP
thinkphp模板的包含与渲染实例分析
Nov 26 PHP
PHP模板引擎Smarty内建函数foreach,foreachelse用法分析
Apr 11 PHP
PHP微信支付开发实例
Jun 22 PHP
PHP实现留言板功能的详细代码
Mar 25 PHP
PHP5.6新增加的可变函数参数用法分析
Aug 25 PHP
PHP字符串与数组处理函数用法小结
Jan 07 PHP
Laravel5.1 框架数据库操作DB运行原生SQL的方法分析
Jan 07 PHP
PHP实现的浏览器检查类
Apr 11 #PHP
PHP模板引擎Smarty内建函数section,sectionelse用法详解
Apr 11 #PHP
PHP模板引擎Smarty内建函数详解
Apr 11 #PHP
PHP模板引擎Smarty内置变量调解器用法详解
Apr 11 #PHP
PHP模板引擎Smarty自定义变量调解器用法
Apr 11 #PHP
PHP中如何防止外部恶意提交调用ajax接口
Apr 11 #PHP
PHP读取mssql json数据中文乱码的解决办法
Apr 11 #PHP
You might like
openPNE常用方法分享
2011/11/29 PHP
php实现文件下载代码分享
2014/08/19 PHP
PHP解压ZIP文件到指定文件夹的方法
2016/11/17 PHP
PHP7 安装event扩展的实现方法
2019/10/08 PHP
解决jquery .ajax 在IE下卡死问题的解决方法
2009/10/26 Javascript
10个基于jQuery或JavaScript的WYSIWYG 编辑器整理
2010/05/06 Javascript
JQuery表格内容过滤的实现方法
2013/07/05 Javascript
jquery ajax jsonp跨域调用实例代码
2013/12/11 Javascript
js中iframe调用父页面的方法
2014/10/30 Javascript
JavaScript计算两个日期时间段内日期的方法
2015/03/16 Javascript
javascript中this指向详解
2016/04/23 Javascript
Google 地图API资料整理及详细介绍
2016/08/06 Javascript
Bootstrap提示框效果的实例代码
2017/07/12 Javascript
angularjs实现table增加tr的方法
2018/02/27 Javascript
浅谈微信页面入口文件被缓存解决方案
2018/09/29 Javascript
CKEditor4配置与开发详细中文说明文档
2018/10/08 Javascript
vue 移动端适配方案详解
2018/11/15 Javascript
vue和better-scroll实现列表左右联动效果详解
2019/04/29 Javascript
vue-test-utils初使用详解
2019/05/23 Javascript
微信小程序canvas截取任意形状的实现代码
2020/01/13 Javascript
python批量下载图片的三种方法
2013/04/22 Python
python 默认参数问题的陷阱
2016/02/29 Python
Python实现对象转换为xml的方法示例
2017/06/08 Python
Python字符串大小写转换拼接删除空白
2019/09/19 Python
Django对接支付宝实现支付宝充值金币功能示例
2019/12/17 Python
Python3 hashlib密码散列算法原理详解
2020/03/30 Python
帕克纽约:PARKER NY
2018/12/09 全球购物
创建市级文明单位实施方案
2014/03/01 职场文书
演讲稿祖国在我心中
2014/05/04 职场文书
禁烟标语大全
2014/06/11 职场文书
优秀团员事迹材料
2014/12/25 职场文书
护士自荐信怎么写
2015/03/06 职场文书
2015年出纳个人工作总结
2015/04/02 职场文书
学校推普周活动总结
2015/05/07 职场文书
2015选调生工作总结
2015/07/24 职场文书
教师网络培训心得体会
2016/01/09 职场文书