本文介绍了如何使用PHP实现数据库配置、访问类的生成，并详细解释了如何通过模板生成类操作代码，包括增删改查等功能。
数据库配置文件:db_config.php
<?php
$vhost="localhost";
$vdb="testdb";
$vuname="root";
$vupwd="";
$vcode="utf-8";
?>模板文件:t_source.html
<div id="phpcode">
<pre ID="codearea" style="background-color:#F0F0F0;border:1px dotted black">
/*
作者:由martixwang的自动PHP生成器生成
版本:1.0
*/
require_once 'ado.php';
class <{$tablename}> extends ADO{
<{$classPropertys}>
<{$propertyGeter}>
<{$propertySeter}>
function __construct(){
parent::__construct();
}
public function query($whereExp){
$result="";
if(strlen($whereExp)!=0){
$result=$this->executeQuery("<{$selectsql}> where ".$whereExp, 0, 0);
}
else
{
$result=$this->executeQuery("<{$selectsql}>",0,0);
}
$returnVal=array();
$i=0;
while($row=mysql_fetch_array($result)){
$vc=new <{$tablename}>();
<{$propertyAssignstring}>;
array_push($returnVal,$vc);
$i++;
}
$this->closeConnection();
return $returnVal;
}
public function addNew($new){
$sqls=array("insert into <{$tablename}> (<{$fieldslist}>) values (".<{$valueslist}>.")");
$result=$this->executeCommands($sqls);
return $result;
}
public function modifyBy<{$PKfieldName}>($new){
//$tempsql=<{$modifysql}>." where <{$PKfieldName}>=".$new->get<{$PKfieldName}>();
$sqls=array(<{$modifysql}>." where <{$PKfieldName}>=".$new->get<{$PKfieldName}>());
$result=$this->executeCommands($sqls);
return $result;
}
public function deleteBy<{$PKfieldName}>($<{$PKfieldName}>){
$sqls=array("<{$deletesql}>"." where <{$PKfieldName}>=".$<{$PKfieldName}>);
$result=$this->executeCommands($sqls);
return $result;
}
public function pageCount($whereExp, $pagesize){
return $this->getPageCount("<{$tablename}>", $whereExp, $pagesize);
}
public function rowCount($whereExp){
return $this->getRowCount("<{$tablename}>",$whereExp);
}
public function Exist($whereExp){
return $this->isExist("<{$tablename}>", $whereExp);
}
function toJSON()
{
$sResult="";
foreach($this as $key=>$value)
{
//根据 http://www.json.org/
$value=str_replace("\"","\\\"",$value);
$value=str_replace("\\","\\\\",$value);
$value=str_replace("/","\\/",$value);
$value=str_replace("\b","\\b",$value);
$value=str_replace("\f","\\f",$value);
$value=str_replace("\n","\\n",$value);
$value=str_replace("\r","\\r",$value);
$value=str_replace("\t","\\t",$value);
if($sResult=="")
$sResult="\"$key\":\"$value\"";
else
$sResult.=" , \"$key\":\"$value\"";
}
return "{".$sResult."}";
}
}
class <{$tablename}>BLL extends <{$tablename}>{
public function __construct(){
parent::__construct();
}
}
</pre>
</div>
基于mysql的通用访问类:ado.php
<?php
class ADO{
private $dbhost;
private $db="";
private $uname="";
private $upwd="";
private $conn;
private $query;
private $code;
function __construct(){
include 'db_config.php';
$this->dbhost=$vhost;
$this->uname=$vuname;
$this->upwd=$vupwd;
$this->code=$vcode;
//echo "<br>db_config:".$this->dbhost.$this->uname.$this->upwd."<br>";
$this->db=$vdb;
// $this->connect();
}
//public function open_connect(){
// $this->connect();
//}
private function connect(){
//echo "db_config".$this->dbhost.$this->uname.$this->upwd;
$this->conn=mysql_connect($this->dbhost,$this->uname,$this->upwd) or die("connect fail!!!");
if(!$this->conn) echo "connection database fail!!!<br>".mysql_error();
mysql_select_db($this->db,$this->conn);
mysql_query("set names '". $this->code ."'");
}
protected function executeQuery($sql,$pagenumber,$pagesize){
$this->connect();
if($pagenumber!=0){
$sql=$sql." limit ".$pagenumber.",".$pagesize;
}
$query=mysql_query($sql,$this->conn);
return $query;
}
//批量提交增删改命令
protected function executeCommands($sqls){
$this->connect();
mysql_query("BEGIN");
$error=1;
foreach($sqls as $k=>$v){
$result=mysql_query($v,$this->conn);
if(!$result){
$error=0;
//echo $v." 执行失败!<br>";
break;
}
else
{
//echo $v." 执行成功!<br>";
}
}
if($error==0){
mysql_query("ROLLBACK");
}
else
{
mysql_query("COMMIT");
}
mysql_query("END");
$this->closeConnection();
return $error;
}
//取得页总数
protected function getPageCount($tablename,$whereExp,$pagesize){
$this->connect();
if(strlen($whereExp)!=0){
$sql="select ceiling(count(*)/".$pagesize.") as rowcount from ".$tablename." where ".$whereExp;
}
else
{
$sql="select ceiling(count(*)/".$pagesize.") as rowcount from ".$tablename;
}
$query=mysql_query($sql,$this->conn);
$row=mysql_fetch_row($query);
$this->closeConnection();
$rw= $row[0];
$this->closeConnection();
return $rw;
}
//取得行总数
protected function getRowCount($tablename,$whereExp){
$this->connect();
if(strlen($whereExp)!=0){
$sql="select count(*) as rowcount from ".$tablename." where ".$whereExp;
}else {
$sql="select count(*) as rowcount from ".$tablename;//." where ".$whereExp;
}
//echo $sql;
$query=mysql_query($sql,$this->conn);
$row=mysql_fetch_row($query);
$rw= $row[0];
$this->closeConnection();
return $rw;
}
//按条判断存在性
protected function isExist($tablename,$whereExp){
$this->connect();
$c=$this->getRowCount($tablename,$whereExp);
$this->closeConnection();
if($c!=0) {return 1;} else {return 0;}
}
//关闭链接
protected function closeConnection(){
mysql_close();
}
}
?>
根据选择定的数据库表，生成dal代码：codecreate.php(这部分代码还没有优化，将就着用吧)
<?php
require "./main.php";
require_once 'ado.php';
class mataRow{
private $fname="";
private $ftype="";
private $pk="";
/**
* @return the $fname
*/
public function getFname() {
return $this->fname;
}
/**
* @return the $ftype
*/
public function getFtype() {
return $this->ftype;
}
/**
* @return the $pk
*/
public function getPk() {
return $this->pk;
}
/**
* @param string $fname
*/
public function setFname($fname) {
$this->fname = $fname;
}
/**
* @param string $ftype
*/
public function setFtype($ftype) {
$this->ftype = $ftype;
}
/**
* @param string $pk
*/
public function setPk($pk) {
$this->pk = $pk;
}
}
class codeCreate extends ADO{
private $tablename="";
private $fields=array();
private $updatesql="";
private $selectsql="";
private $deletesql="";
private $insertsql="";
private $fieldInfo=array();
private $pkFieldName="";
public function getPkFieldName() {
return $this->pkFieldName;
}
public function setPkFieldName($pkFieldName) {
$this->pkFieldName = $pkFieldName;
}
public function __construct($tabname){
parent::__construct();
$this->setTablename($tabname);
$this->fieldInfo=$this->getTableInfo();
}
public function getUpdatesql() {
return $this->updatesql;
}
public function getSelectsql() {
return $this->selectsql;
}
public function getDeletesql() {
return $this->deletesql;
}
public function getInsertsql() {
return $this->insertsql;
}
public function setUpdatesql($updatesql) {
$this->updatesql = $updatesql;
}
public function setSelectsql($selectsql) {
$this->selectsql = $selectsql;
}
public function setDeletesql($deletesql) {
$this->deletesql = $deletesql;
}
public function setInsertsql($insertsql) {
$this->insertsql = $insertsql;
}
public function getTablename() {
return $this->tablename;
}
public function setTablename($tablename) {
$this->tablename = $tablename;
}
public function getFields() {
return $this->fields;
}
public function setFields($fields) {
$this->fields = $fields;
}
public function getTableInfo(){
$returnVal=array();
$i=0;
$result=$this->executeQuery("desc ".$this->tablename.";",0,0);
if(!$result) echo "表没有找到，请检查数据库的配置文件db_config.php";
while($row=mysql_fetch_array($result))
{
$mata=new mataRow();
//echo "<br>row:".$row[Field]."<br>".$row[Type]."<br>".$row[Key]."<br>";
$mata->setFname($row[Field]);
$mata->setFtype($row[Type]);
$mata->setPk($row[Key]);
if($row[Key]=="PKI"){$this->setPkFieldName($row["Key"]);}
$returnVal[$i]=$mata;
$i++;
}
$this->closeConnection();
//print_r($returnVal);
return $returnVal;
}
}
$tablename=$_POST["selectComobo"];
echo "<input type='button' value='返回' onclick='javascript:history.go(-1);' > ".
"<input type='button' value='复制' onclick=\"clipboardData.setData('Text',document.getElementById('codearea').innerHTML);\" />";
echo "<br><P style='color:red'>你选择的表是:".$_POST["selectComobo"]."的类操作代码成功生成！</p>";
if(strlen($tablename)!=0){
$gen=new codeCreate($tablename);
$gen->setTablename($tablename);
$rs=$gen->getTableInfo();
//echo "<br>ddddddddddddd:".$rs[0]->getFname();
//echo "<br>list:".count($rs)."<br>";
$v=new mataRow();
$n=count($rs);
$i=0;
$PKfieldName="";
$selectsql="select * from ".$tablename;
$deletesql="delete from ".$tablename;
$fieldslist="";
$valueslist="";
$fieldvaluelist="";
$propertyAssignstring="";
$classPropertys="";
$propertyGeter="";
$propertySeter="";
$tab_head="";
$tab_body="<{foreach item=v from=\$result}>\n<tr id='row<{\$v->getid()}>'>\n"."12345678".
"\n<td><a href='#' onclick='addnew(<{\$v->getid()}>)'>增</a> \n".
"<a href='#' id='delink' onclick='del(<{\$v->getid()}>)'>删</a> \n".
"<a href='#' onclick='modify(<{\$v->getid()}>)'>改</a> \n<a href='#'>阅</a></td><tr>".
"\n<{/foreach}>";
$tds="";
//"<td style='width:60px'><input type=text id='txt<{$v->getFname()}>' value='<{$v->getContentPostUserName()}>'</td>";
while($i<$n){
$v=$rs[$i];
//echo $v->getFname()." ".$v->getFtype()." ".$v->getFtype()." ".$v->getPk()."<br>";
$tab_head=$tab_head."<td>".$v->getFname()."</td>\n";
$tds=$tds."\n<td style='width:60px'><{\$v->get".$v->getFname()."()}></td>\n";
//$vc->contenttypeid=$row["id"];
$tempPA="";
$tempPA="\$vc->".$v->getFname()."=\$row[\"".$v->getFname()."\"]";
$propertyAssignstring=(strlen($propertyAssignstring)==0?$propertyAssignstring:$propertyAssignstring.";").$tempPA;
$tempCP="";
$tempCP="private $".$v->getFname().";";
$classPropertys=(strlen($classPropertys)==0?$classPropertys:$classPropertys."").$tempCP;
// public function getContenttypeid() {return $this->contenttypeid;}
$tempPG="public function get".$v->getFname()."() {return \$this->".$v->getFname().";}";
$propertyGeter=(strlen($propertyGeter)==0?$propertyGeter:$propertyGeter."").$tempPG;
$tempPS="public function set".$v->getFname()."(\$".$v->getFname()."){\$this->".$v->getFname()." = \$".$v->getFname().";}";
$propertySeter=(strlen($propertySeter)==0?$propertySeter:$propertySeter."").$tempPS;
if($v->getPk()=="PRI"){ //如果是主键字段
//echo "i get the PKI";
$PKfieldName=$v->getFname();
}else{
//echo "<br>".$v->getFname()."-------".$v->getFtype()."<br>";
$temptype=$v->getFtype();
//echo "<br>the value is found?:".$v->getFname()."======================".$temptype."==============================".(stripos("_".$temptype,"int")?"found":"not found!")."<br>";
$fieldslist=(strlen($fieldslist)==0?$fieldslist:$fieldslist.",").$v->getFname();
$tempfvbegin=$v->getFname()."=";
$tempfvend="\",";
$tempfvstring="";
if(stripos("_".$temptype,"int")||stripos("_".$temptype,"num")||stripos("_".$temptype,"bit")||stripos("_".$temptype,"flo")||stripos("_".$temptype,"dou")||stripos("_".$temptype,"dec")){
$tempfv="\$new->get".$v->getFname()."()";
$tempfvbegin=$v->getFname()."=";
$tempfvend=",";
//echo "I GOT INT TYPE@".$temptype;
}
else
{
$tempfv="\"'\".\$new->get".$v->getFname()."().\"'\"";
$tempfvbegin=$tempfvbegin."'";
$tempfvend="'";
}
$tempfvstring=$tempfvbegin."\$new->get".$v->getFname()."()".$tempfvend;
$fieldvaluelist=(strlen($fieldvaluelist)==0?$fieldvaluelist:$fieldvaluelist.",").$tempfvstring;
$valueslist=(strlen($valueslist)==0?$valueslist:$valueslist.".\",\".").$tempfv;
}
$tempmodifysql="update ".$tablename." set ".$fieldvaluelist;
$tempmodifysql="\"".str_replace("',",".\"',",str_replace("='","='\".",$tempmodifysql));
$tempmodifysql=str_replace("=\$","=\".\$",$tempmodifysql);
$tempmodifysql=str_replace(",,",".\",",$tempmodifysql);
if(strripos($tempmodifysql,"'")+1==strlen($tempmodifysql)){
$tempmodifysql=substr($tempmodifysql, 0,strlen($tempmodifysql)-1).".\"'\"";
}
if(strripos($tempmodifysql,",")+1==strlen($tempmodifysql)){
$tempmodifysql=substr($tempmodifysql, 0,strlen($tempmodifysql)-1);//.".\"'\"";
}
//$tempmodifysql=str_replace(",.",".",$tempmodifysql);
$i++;
}
$tab_body=str_replace("12345678", $tds, $tab_body);
// echo "<br>fieldlist and valuelist:".$fieldslist."<br>".$valueslist."<br>fvlist:".$fieldvaluelist."<br>propertyassignstring:".$propertyAssignstring.
// "<br>classprorpertyes:".$classPropertys."<br>propertygeter:".$propertyGeter;
// echo "<BR>propertySetter:". $propertySeter ;
// echo "<br>tempmodifysql:".$tempmodifysql;
$tpl->assign("tab_head",$tab_head);
$tpl->assign("tab_body",$tab_body);
$tpl->assign("tablename",$tablename);
$tpl->assign("PKfieldName",$PKfieldName);
$tpl->assign("selectsql",$selectsql);
$tpl->assign("fieldslist",$fieldslist);
$tpl->assign("valueslist",$valueslist);
$modifysql=$tempmodifysql;
$tpl->assign("modifysql",$modifysql);
$tpl->assign("deletesql",$deletesql);
$tpl->assign("propertyAssignstring",$propertyAssignstring);
$tpl->assign("classPropertys",$classPropertys);
$tpl->assign("propertyGeter",$propertyGeter);
$tpl->assign("propertySeter",$propertySeter);
$tpl->display("t_source.htm");
}
else
{
echo "没有选择表，不能进行生成！！！";
}
?>
smarty调用文件：codecreateapp.php
<?php
include "./main.php";
include "./dal/ado.php";
class test extends ADO{
public function __construct(){
parent::__construct();
}
public function getTablesInfoOnServer(){
$result=array();
$rs=$this->executeQuery("show tables;",0,0);
//print_r($rs);
//echo "....";
while($t=mysql_fetch_array($rs)){
//echo $t[Tables_in_testdb]."|<br>";
array_push($result,$t[Tables_in_testdb]);
}
$this->closeConnection();
return $result;
}
}
$t=new test();
$r=$t->getTablesInfoOnServer();
$tpl->assign("result",$r);
$tpl->display("t_codeCreate.html");
?>
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