PHP는 매개변수를 통해 MYSQL 문 클래스를 생성하는 방법과 예제를 구현합니다.

墨辰丷
풀어 주다: 2023-03-29 15:36:01
원래의
1357명이 탐색했습니다.

이 글에서는 주로 매개변수를 통해 MYSQL 문 클래스를 생성하는 PHP 구현을 소개하고, 완전한 예제 형태로 MYSQL 문 클래스를 생성하는 구현 및 사용 기술을 분석합니다. 필요한 친구는 참고할 수 있습니다.

이 클래스는 다음을 통해 사용할 수 있습니다. 지정된 테이블 및 필드 매개변수는 SELECT, INSERT, UPDATE 및 DELETE 문을 생성합니다.

이 클래스는 LEFT JOIN 및 ORDER 문을 사용하여 LIKE 쿼리 문과 같은 SQL 문의 WHERE 조건을 생성할 수 있습니다.

<?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 &#39;&#39;,
 address varchar(60) NOT NULL default &#39;&#39;,
 city varchar(60) NOT NULL default &#39;&#39;,
 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 ;
 $conditions [ 0 ][ " condition " ] = " id=&#39;$id&#39; " ;
 $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=&#39;1&#39; " ;
 $conditions [ 0 ][ " connection " ] = " OR " ;
 $conditions [ 1 ][ " condition " ] = " id=&#39;2&#39; " ;
 $conditions [ 1 ][ " connection " ] = " OR " ;
 $conditions [ 2 ][ " condition " ] = " id=&#39;4&#39; " ;
 $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 ;
 $conditions [ 0 ][ " condition " ] = " id=&#39;$id&#39; " ;
 $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> " ;}
?>
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클래스 코드:

<?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 &#39;% " . $Value . " %&#39; 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 &#39;% " . $Value . " %&#39; 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(&#39; " . $values [ $i ] . " &#39;), " ;
        @ $this -> partSQL .= $fields [ $i ] . " =password(&#39; " . $values [ $i ] . " &#39;), " ;
      }
       else 
      {
         if ( is_numeric ( $values [ $i ]))
        {
          @ $this -> valueSQL .= $values [ $i ] . " , " ;
          @ $this -> partSQL .= $fields [ $i ] . " = " . $values [ $i ] . " , " ;
        }
         else 
        {
          @ $this -> valueSQL .= " &#39; " . $values [ $i ] . " &#39;, " ;
          @ $this -> partSQL .= $fields [ $i ] . " =&#39; " . $values [ $i ] . " &#39;, " ;
        }
      }
    }
     $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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요약: 위 내용은 이 문서의 전체 내용입니다. 모두에게 도움이 되기를 바랍니다. 도움말을 알아보세요.

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위 내용은 PHP는 매개변수를 통해 MYSQL 문 클래스를 생성하는 방법과 예제를 구현합니다.의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!

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