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    ▪解析PHP中常见的mongodb查询操作       代码如下:<?php// 欄位字串為$querys = array("name"=>"shian");// 數值等於多少$querys = array("number"=>7);// 數值大於多少$querys = array("number"=>array('$gt' => 5));// 數值大於等於多少$querys = array("numbe.........

    ▪PHP 解决session死锁的方法       今天在开发碰到个棘手的问题 。当异步请求后台处理一个大数据量操作时  请求其他控制器都没返回信息了。。起初以为是Ext 框架设置了ajax同步造成的。后来发现时session 死锁造成其他控.........

    ▪解析PHP可变函数的经典用法       代码如下:<?phpfunction map($fun, $list,$params=array()){    $acc=NULL;    $last=array_push($params, NULL,$acc)-1;    foreach($list as $params[$last-1]){     //第一次见这种写法感觉很神奇        $params[$last]=c.........

代码如下:

<?php
// 欄位字串為
$querys = array("name"=>"shian");

// 數值等於多少
$querys = array("number"=>7);

// 數值大於多少
$querys = array("number"=>array('$gt' => 5));

// 數值大於等於多少
$querys = array("number"=>array('$gte' => 2));

// 數值小於多少
$querys = array("number"=>array('$lt' => 5));

// 數值小於等於多少
$querys = array("number"=>array('$lte' => 2));

// 數值介於多少
$querys = array("number"=>array('$gt' => 1,'$lt' => 9));

// 數值不等於某值
$querys = array("number"=>array('$ne' => 9));

// 使用js下查詢條件
$js = "function(){
    return this.number == 2 && this.name == 'shian';
}";
$querys = array('$where'=>$js);

// 欄位等於哪些值
$querys = array("number"=>array('$in' => array(1,2,9)));

// 欄位不等於哪些值
$querys = array("number"=>array('$nin' => array(1,2,9)));

// 使用正規查詢
$querys = array("name" => new MongoRegex("/shi/$i"));

// 或
$querys = array('$or' => array(array('number'=>2),array('number'=>9)));
?>

代码如下:

Description
void session_write_close ( void )
End the current session and store session data.
Session data is usually stored after your script terminated without the need to call session_write_close(), but as session data is locked to prevent concurrent writes only one script may operate on a session at any time. When using framesets together with sessions you will experience the frames loading one by one due to this locking. You can reduce the time needed to load all the frames by ending the session as soon as all changes to session variables are done.

代码如下:

<?php
function map($fun, $list,$params=array()){
    $acc=NULL;
    $last=array_push($params, NULL,$acc)-1;
    foreach($list as $params[$last-1]){     //第一次见这种写法感觉很神奇
        $params[$last]=call_user_func_array($fun , $params  );
    }
    $acc=array_pop($params);
    return $acc;
}
function add($element,$acc){
    if ($acc == NULL);
    return $acc=$element+$acc;
}
$result=0;
$result=addTo($result,1);
$result=addTo($result,2);
$result=addTo($result,3);
echo "result = $result\n";
$result=0;
$result=map('addTo',array(1,2,3));
echo "result= $result\n";
?>