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Class 'DOMDocument' not found
...OM extension. You can do so on Debian / Ubuntu using:
sudo apt-get install php-dom
And on Centos / Fedora / Red Hat:
yum install php-xml
If you get conflicts between PHP packages, you could try to see if the specific PHP version package exists instead: e.g. php53-xml if your system runs PHP5.3.
...
Getting parts of a URL (Regex)
...col, even urls like
ftp://user:pass@www.cs.server.com:8080/dir1/dir2/file.php?param1=value1#hashtag
The result (in JavaScript) looks like this:
["ftp", "user", "pass", "www.cs", "server", "com", "8080", "/dir1/dir2/", "file.php", "param1=value1", "hashtag"]
An url like
mailto://admin@www.cs.s...
程序员保值的4个秘密 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...都在做应用层面的开发，所做的软件用来解决特定场景的问题，给用户的工作和生活带来方便。
开发一个应用，经常会用到高级语言和框架，比如 C# 和 .NET ，比如 C++ 和 Qt ，比如 J2EE ，比如 Ruby on Rails ，比如 Python 和 Django ，...
技术人员如何创业《一》—— 产品及想法 - 资讯 - 清泛网 - 专注C/C++及内核技术
...品及想法：
什么是好的产品？一个朋友之前问到，这个问题要系统的回答还真有点不好说。看一下比较理论的解释，产品指一个能够满足用户的需求，我们能够使用可行的技术手段实现并且通过销售给用户给公司带来利润。好...
Sanitizing strings to make them URL and filename safe?
...t's not clear whether this is the locale of the server or client. From the PHP docs:
A "word" character is any letter or digit or the underscore character, that is, any character which can be part of a Perl "word". The definition of letters and digits is controlled by PCRE's character tabl...
Query-string encoding of a Javascript Object
...mp;bar=100%25
Edit: this one also converts recursive objects (using php "array" notation for the query string)
serialize = function(obj, prefix) {
var str = [],
p;
for (p in obj) {
if (obj.hasOwnProperty(p)) {
var k = prefix ? prefix + "[" + p + "]" : p,
v...
date(): It is not safe to rely on the system\'s timezone settings.解决...
...是时区设置不正确造成的,本文提供了3种方法来解决这个问题。
实际上，从PHP 5.1.0开始当对使用date()等函数时，如果timezone设置不正确，在每一次调用时间函数时，都会产生E_NOTICE 或者 E_WARNING 信息，而又在php中，date.timezone这个...
C# Regex for Guid
....
Ruby supports them starting with version 2.0. Languages such as Delphi, PHP, and R that
have regex features based on PCRE also support conditionals. (source http://www.regular-expressions.info/conditional.html)
The regex that follows Will match
{123}
(123)
123
And will not match
{123)
(123}...
利用 App Inventor 2 开发ChatGPT应用 - App Inventor 2 中文网 - 清泛网 - 专注C/C++及内核技术
...码块如下：
用到的核心组件“ChatBot”如下：
那么问题来了，这个“ChatBot”这个强大的组件从何而来，背后的原理是啥？
“ChatBot”组件在MIT官方在最新的v2.67版中引入的AI相关功能，通过合并官方代码，App Inventor 2 中文...
AI2 如何快捷比较两个列表的差异项，然后再根据差异的项去执行更新操作？ -...
...决思路：
这时，我们就会考虑使用字典来解决这个性能问题了，回顾一下文档中字典的特点：
引用: https://www.fun123.cn/reference/blocks/dictionaries.html
Q：App Inventor 2 什么情况下需要使用字典？A：列表能完成字典的绝大部分功能，不...