PHP实现的通过参数生成MYSQL语句类完整实例，mysql语句_PHP教程
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了PHP实现的通过参数生成MYSQL语句类完整实例，mysql语句_PHP教程，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15479字，纯文字阅读大概需要23分钟。
内容图文
PHP实现的通过参数生成MYSQL语句类完整实例，mysql语句
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 " Result Generate Insert
" ; $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 . "
" ;} echo " Result Generate Update
" ; $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 . "
" ;} echo " Result Generate Delete
" ; $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 . "
" ;} echo " Result Generate List
" ; $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 . "
" ;} echo " Result Generate List with search on all fields
" ; $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 . "
" ;} echo " Result Generate List with search on some fields
" ; $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 . "
" ;} ?>
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 ;}
}
}
?>
更多关于PHP相关内容感兴趣的读者可查看本站专题：《PHP基于pdo操作数据库技巧总结》、《PHP运算与运算符用法总结》、《PHP网络编程技巧总结》、《PHP基本语法入门教程》、《php操作office文档技巧总结(包括word,excel,access,ppt)》、《php日期与时间用法总结》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家PHP程序设计有所帮助。
您可能感兴趣的文章:
- PHP基于单例模式实现的mysql类
- php封装的连接Mysql类及用法分析
- 一个php Mysql类 可以参考学习熟悉下
- 十二个常见的PHP+MySql类免费CMS系统
- PHP实现基于mysqli的Model基类完整实例
- PHP使用Mysqli类库实现完美分页效果的方法
- PHP格式化MYSQL返回float类型的方法
- php实现Mysql简易操作类
- php简单操作mysql数据库的类
http://www.bkjia.com/PHPjc/1119968.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/1119968.htmlTechArticlePHP实现的通过参数生成MYSQL语句类完整实例，mysql语句 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...
内容总结
以上是互联网集市为您收集整理的PHP实现的通过参数生成MYSQL语句类完整实例，mysql语句_PHP教程全部内容，希望文章能够帮你解决PHP实现的通过参数生成MYSQL语句类完整实例，mysql语句_PHP教程所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。
来源：【匿名】