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译文:理解Java中的弱引用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...。既然它们是一些不知名的概念,我简单就着前面的三个问题来说明一下。
强引用(Strong Reference)
强引用就是我们经常使用的引用,其写法如下
StringBuffer buffer = new StringBuffer();
上面创建了一个StringBuffer对象,并将这个对象的...
windows版 svn 服务器搭建及总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e –d –r d:/svnserversoftware/myrepository
以下转载若干问题
1、不知道该怎么设置 svn://url 这个路径
2、三个需要设置的文件,其中authz这个里面的[repos:/]这个到底该怎么设置
3、认证失败问题出在哪里?
4、svn import 目录1 "s...
href image link download on click
...
<a href="download.php?file=path/<?=$row['file_name']?>">Download</a>
download.php:
<?php
$file = $_GET['file'];
download_file($file);
function download_file( $fullPath ){
// Must be fresh start
if( headers_sent()...
How would you access Object properties from within an object method? [closed]
...
What if you add some sort of boolean to the getter like: PHP: public function getName($outsideCall = true){ if($outsideCall){ $this->incrementNameCalled(); } return $this->name; } and then from within the Object itself, if you called get name, you could keep ...
How to prevent Browser cache for php site
I have a php site running in cloud server.When ever i add new files css, js or images the browser is loading the same old js, css and image files stored in cache.
...
PHP prepend associative array with literal keys?
... See also array_merge() and its difference from using the + operator: br.php.net/manual/en/function.array-merge.php#92602
– Havenard
Sep 3 '09 at 1:33
2
...
Find out HTTP method in PHP [duplicate]
...e superglobals alternatives (Is using superglobals directly good or bad in PHP? and similar questions), one may instead use automatic sanitizing
filter_input( \INPUT_SERVER, 'REQUEST_METHOD', \FILTER_SANITIZE_SPECIAL_CHARS )
(you might of course use other filter, eg. FILTER_SANITIZE_STRING - see ...
浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的处理能力,那么接收方会出现丢包。为了避免出现此类问题,流量控制要求数据传输双方在每次交互时声明各自的接收窗口「rwnd」大小,用来表示自己最大能保存多少数据,这主要是针对接收方而言的,通俗点儿说就是让发...
一个故事告诉你比特币的原理及运作机制 - 创意 - 清泛网 - 专注C/C++及内核技术
...事的方式,逐步告诉大家比特币提出的动机、解决了什么问题以及一些关键组件的目标和设计方案。
问题的提出
我们先从比特币产生的动机开始。
以物易物的比特村
话说在这个世界上,有一个叫比特村的小村庄,村庄共有...
How to repair a serialized string which has been corrupted by an incorrect byte count length?
...en ( $data2 )) ? strlen ( $data1 ) : strlen ( $data2 );
echo $data1 . PHP_EOL;
echo $data2 . PHP_EOL;
for($i = 0; $i < $max; $i ++) {
if (@$data1 {$i} !== @$data2 {$i}) {
echo "Diffrence ", @$data1 {$i}, " != ", @$data2 {$i}, PHP_EOL;
echo "\t-> ...
