PHP操作MongoDB数据库详细例子介绍（增、删、改、查） （六）

PHP操作mongodb：

PHP 要操作mongodb需要打模块
官网可以下载：http://pecl.php.net/package/mongo 下载

mongodb设置成用户授权的启动方式

php手册没有些用户授权方式登陆的方法：
conn.php
$conn = new Mongo("mongodb://user1:123456@localhost:27017/test"); //用户授权链接mongodb test数据库
$db = $conn->test;
?>

find.php
include "conn.php";
$c1 = $db->c1;    //操作c1集合

//由于php里面不能直接用json
//db.c1.find({name:"user1"});   不能这么玩
//{name:"user1"} == array("name"=>"user1")   用这种形式
//[1,2] == array(1,2);
//{} == array()

$arr=array();
$rst = $c1->find($arr);
foreach($rst as $val){
echo "

";  <br> print_r($val['name']);  //取id的话  得"_id"  <br> }  <br>  <br>  <br> 例子2：指定值查询  <br> $arr = array("name"=>"user1");  //查询nam=user1的  <br> $rst = $c1->find($arr);  <br> foreach($rst as $val){  <br> echo "<pre class="brush:php;toolbar:false">";  <br> $fis = $val['_id'];  <br> print_r($val);    <br> echo "<a href="user.php?fid=%7B%24fid%7D"></a>";   //你会发现fid传到user.php的时候变成字符串了，怎么解决？  <br> //user.php   根据_id查mongodb对应的数据  <br> <?php <br /> include "conn.php";  <br> $c1 = $db->c1;  <br> $oid= new MongoId($_GET['fid']); 用这个转一下  <br> var_dump($oid);  //还是Object,不转的话就是string类型  <br>  <br> $arr = array("_id"=>"$oid");    <br> $rst = $c1->find($arr);  <br> foreach($rst as $val){  <br> echo "<pre class="brush:php;toolbar:false">";  <br> print_r($val);   <br> }  <br> ?>  <br> }  <br>  <br>  <br> 例子3：增加  <br> include "conn.php";  <br> $c1 = $db->c1;  <br> //db.c1.insert({"name"=>"user3",age:30,"sex"=>"nan"});  <br> $arr = array("name"=>"user3","age"=>30,"sex"=>"nan");  <br> if($c1->insert($arr))  <br> echo '成功';  <br> else  <br> echo '失败';  <br>  <br>  <br>  <br>  <br> 例子4：删  <br> include "conn.php";  <br> $c1 = $db->c1;  <br> //db.c1.remove({"name"=>"user2"});  <br> $arr = array("name"=>"user2");  <br> if($c1->remove($arr))  <br> echo '删除成功';  <br> else  <br> echo '删除失败';  <br>  <br>  <br>  <br>  <br> 例子4：改  <br> include "conn.php";  <br> $c1 = $db->c1;  <br> //db.c1.update({"name"=>"user2"},{$set:{age:20,sex:"nan"}}); 增加字段  <br> $sarr = array("name"=>"user2");  <br> $darr = array('$set'=>array('sex'=>'nan','age'=>24));  <br> $opts = array('upsert'=>0,'multiple'=>1);  <br> if($c1->update($sarr,$darr,$opts))  //php里面的update只能传3个参数  <br> echo '更改成功';  <br> else  <br> echo '更改失败';  <br>  <br> //关闭  <br> $conn->close();  <br> ?>  <br>  <br>  <br>  <br>