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Remove a string from the beginning of a string

... want, where you can limit your replace to part of your string: http://nl3.php.net/manual/en/function.substr-replace.php (This will enable you to only look at the beginning of the string.) You could use the count parameter of str_replace ( http://nl3.php.net/manual/en/function.str-replace.php ), th...
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TCP 的那些事儿(上) - 更多技术 - 清泛网 - 专注C/C++及内核技术

...些事儿(上)TCP是一个巨复杂的协议,因为他要解决很多问题,而这些问题又带出了很多子问题和阴暗面。所以学习TCP本身是个比较痛苦的过程,但对于学习的... TCP是一个巨复杂的协议,因为他要解决很多问题,而这些问题又...
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Best way to test for a variable's existence in PHP; isset() is clearly broken

...f isset(). Since this is takes the array to check as a function argument, PHP will still raise "notices" if the array itself doesn't exist. In some cases, it can validly be argued that each dimension should have been initialised first, so the notice is doing its job. For other cases, a "recursive" ...
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How to convert an array into an object using stdClass() [duplicate]

...ct->$key = $value; } return $object; } or in full code: <?php function convertToObject($array) { $object = new stdClass(); foreach ($array as $key => $value) { if (is_array($value)) { $value = convertToObject($value); } ...
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淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...

...,我们怎么办?通常来说,我们都是通过集群来解决这个问题,而通常所说的集群,不仅有负载均衡,更重要的是要有失效恢复failover,比如tomcat采 用的集群节点广播复制,jboss采 用的配对复制等session状 态复制策略,但是集群中...
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Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...200万个,但我们设置最大文件描述符限制时,会遇到一些问题,我们在后面详细讲解。 2. 客户端的准备 由于我们需要构建大量的客户端,而我们知道,在一台系统上,连接到一个服务时的本地端口是有限的。由于端口是16位整...
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How to find out if you're using HTTPS without $_SERVER['HTTPS']

...RVER['SERVER_PORT'] == 443; } The code is compatible with IIS. From the PHP.net documentation and user comments : 1) Set to a non-empty value if the script was queried through the HTTPS protocol. 2) Note that when using ISAPI with IIS, the value will be "off" if the request was not made ...
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Static class initializer in PHP

... // file Foo.php class Foo { static function init() { /* ... */ } } Foo::init(); This way, the initialization happens when the class file is included. You can make sure this only happens when necessary (and only once) by using autolo...
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How to call a JavaScript function from PHP?

How to call a JavaScript function from PHP? 10 Answers 10 ...
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家政O2O百家争鸣后的卡位战:烧钱补贴并非良药 - 资讯 - 清泛网 - 专注IT技能提升

...少业内人士表示,今年或将迎来真正的家政O2O大战,那么问题来了,怎么战?融资后的钱是否仅有补贴一道? 未来存活率仅有5% 国内巨大的家政需求吸引着一系列创业者的关注,根据“云家政”去年年底发布的北上广深四地家...