我的OOP代码问题 [英] Issue with my OOP codes

问题描述

解析错误：语法错误，第33行的C：\ xampp \htdocs \ OOP \ blog \libs \ database.php中的意外其他（T_ELSE）

我的尝试：



< pre lang =PHP> < pre > <？ php


class 数据库{

public $ host = DB_HOST;
public $ user = DB_USER;
public $ pass = DB_PASS;
public $ db_name = DB_NAME;

public $ link ;

public function __construct（）{
$ this-> connect（）;
}


私人函数connect（）{
$ this - > link = new mysql （$这 - >主机，$这 - >用户，这 - $>通，$这 - > DB_NAME）;



}

公共函数选择（$查询）{

$ result = $ this-> link - > query（$ query）;
if（$ result-> num_rows> 0）{
}
return $结果;


else {
return false;
}


}
公共函数插入（$ query）{

$ insert = $ this-> link-> query（$ query）;

if（$ insert）{
header（' location：index.php ？insert = Post inserted ...'）;
}
else {
echo 帖子没有插入......;
}

}

公共函数更新（$查询）{

$ update = $ this-> link-> query（$ query）;

if（$ update）{
header（' location：index.php ？更新=发布更新后......'）;
}
else {
echo 帖子没有更新......;
}

}

公共函数删除（$ delete）{

$ delete = $ this-> link-> query（$ query）;

if（$ delete）{
header（' location：index.php ？delete =发布已删除...'）;
}
else {
echo 帖子没有删除......;
}

}


}

？>

解决方案

host = DB_HOST;
public

user = DB_USER;
public

pass = DB_PASS;
public

Parse error: syntax error, unexpected 'else' (T_ELSE) in C:\xampp\htdocs\OOP\blog\libs\database.php on line 33

What I have tried:

<pre><?php


class database{

public $host = DB_HOST;
public $user = DB_USER;
public $pass = DB_PASS;
public $db_name = DB_NAME;

 public $link;

public function __construct(){
	$this->connect();
}


 private function connect(){
$this ->link=new mysql ($this->host,$this->user,$this->pass,$this->db_name);



 }

public function select($query){

$result = $this->link ->query($query);
if($result->num_rows> 0){
}
return $result;


else{
	return false;
}


}
public function insert($query){

$insert = $this->link->query($query);

if($insert){
	header('location:index.php?insert= Post inserted ...');
}
else{
	echo"Post did not insert ...";
}

}

public function update($query){

$update = $this->link->query($query);

if($update){
	header('location:index.php?Update= Post updated  ...');
}
else{
	echo"Post did not update ...";
}

}

public function delete($delete){

$delete = $this->link->query($query);

if($delete){
	header('location:index.php?delete= Post deleted ...');
}
else{
	echo"Post did not delete ...";
}

}


}

?>

解决方案

host = DB_HOST; public

user = DB_USER; public

pass = DB_PASS; public

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