... http://php.net/empty The following things are considered to be empty: "" (an empty string) 0 (0 as an integer) 0.0 (0 as a float) "0" (0 as a string) NULL FALSE array() (an empty array) var $var; (a variabl...

...同时读写可能会有IO异常,导致drbd设备失效 为了解决这个问题则使用 gfs + cman 实现分布式文件锁方案 3.3安装cman yum –y cman 3.4 gfs集群文件系统 在 /usr/local/drbd-utils-8.9.4/etc/drbd.conf 在配置文件的 net 选项中 all...

...者就可以把这个压缩包上传到网上供人下载。但是有一个问题，苹果公司和其它的大的软件公司一样，十分擅长曲解和附会用户的意思，它很多时候并不是完全按照你的意思去做的。例如在这种情况下，你以为Mac仅仅是把你想要...

What is the best method for converting a PHP array into a string? I have the variable $type which is an array of types. ...

...usly consider that). It is possible to access some global variables dynamically via window, but that doesn't work for variables local to a function. Global variables that do not become a property of window are variables defined with let and const, and classes. There is almost always a better soluti...

...hings that jump out at me: use of alternation where character classes are called for (every alternative matches exactly one character); and the replacement shouldn't have needed the outer double-quotes (they were only needed because of the pointless /e modifier on the regex). –...

...词典的分词，这种方式简单暴力可以解决百分之七八十的问题。基于词典的分词大概分为以下几种方式： 1、正向最大匹配，沿着我们看到的句子逐字拆分后组合成词语到词典里去匹配，直到匹配不到词语为止。举个实际的例子...

... You could download a free GeoIP database and lookup the IP address locally, or you could use a third party service and perform a remote lookup. This is the simpler option, as it requires no setup, but it does introduce additional latency. One third party service you could use is mine, http://...

...n      [java] INFO: BUILD 1 FINISHED aia包属性有问题，导致的原因未知，待探索。。。 目前最好的办法就是重新建立一个项目，组件和代码拷贝过来。

...候，到底是要抓大放小，还是要抓小放大，这的确是一个问题。资本寒冬到来，很多行业的创业者们都在谋划着过冬的“最佳姿势”。尚未拿到融资的创业者们开始通过各种路演、投资峰会、宣讲会获取资本关注；已经拿到融资...