


Joomla is very popular abroad. Even many websites in Taiwan use joomla, but there is a lack of understanding of joomla in China. Most of them use dedecms or phpcms, etc. I have been learning joomla in the past four months and find it very convenient to use it to build websites.
In the past, custom development was generally used to build websites, which requires high technical skills, and the code is not easy to reuse and maintain by others. For CMS, there is really no need for custom development because the basic functions of CMS are not Many, many functions should be reused. Joomla is a complete CMS, and its biggest feature is its good scalability.
Why is joomla said to have good scalability? Just go to the official website of joomla and look for the component installation package. You will see that there are thousands of components available for installation, and they all implement their own functions. If you need to add a function to your CMS, you can find the installation package before development, which will save a lot of effort. There are many people who develop component installation packages for joomla. This is also because joomla has a good structure and the installation package is easy to develop. Joomla does not have many default function implementations. Joomla is more like a program base layer. All programs are built on this base layer. Each small program builds a highly functional website. Even if you don't use a third-party installation package, making your commonly used functions into a component installation package can reuse code very well and prevent development from reinstalling. From the user's perspective, Joomla is like a desktop system. It can install various application software to enrich the functions of the website, which makes people feel so fun.
Joomla has a good structure, so as long as you are proficient in joomla, it is easy to maintain a joomla site. No matter how good the custom-written things are, maintainability is always a problem. I don’t think any boss wants a system that only one programmer can understand.
For the construction of small and medium-sized websites such as CMS and BBS, custom development is no longer the mainstream. The new era requires websites to require higher development efficiency, so development based on complete systems will occupy most of the market. At present, more and more website development companies in China are conducting secondary development based on existing open source systems, because this means that the products will have higher quality and development efficiency.
There are also many CMSs in China. They are all very easy to use and are no worse than joomla. For example, dedecms is fully static. Joomla cannot yet make a fully static website, so the access efficiency is not as good as dedecms. Although dedecms also has module installation, there is not necessarily anyone who makes modules for dedecms. I have never used dedecms, but it is probably because the structure of dedecms is not universal enough or domestic programmers are not in the habit of writing installation packages for open source. Anyway, foreigners have already built such a good system, why not use it?
The value of a WEB programmer does not entirely lie in his knowledge of many technologies, but in whether he can complete the project faster while meeting customer needs.

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。


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