


PHP is an efficient network programming language. Due to its advantages of flexible writing and fast running, it has quickly become the preferred language of Web programmers. So how can you become an excellent PHP developer?
It is not easy to become a PHP programming master. It is not as many people imagine, as long as you can quickly write a few simple codes to solve the problem. A complicated problem is for PHP programming masters. Real PHP masters need to consider many other issues. The following three guidelines are the guidelines that a mature PHP programmer should first follow in programming.
◆Laziness is golden
◆Write beautiful code
◆Pursue the speed of the program, not the speed of the program The speed of programming
Laziness is golden
Be a lazy programmer? This idea is so weird! Because the busiest people in the world may be computer programmers. But it is precisely because programmers are too busy that they should learn to be lazy when programming. For a programmer, there are two lazy ways:
One is to boldly use other people’s ready-made program codes and integrate these codes into your own programs or projects. The second is to write some useful codes to build a function library, which can be easily used when writing programs in the future. This saves a lot of repetitive work and naturally makes you less lazy. These two lazy methods are very suitable for PHP programmers.
First of all, PHP is a language that was born and grown in a free and open environment. There are thousands of programmers around the world who have been constantly striving for the perfection of PHP, and they are also willing to share their ingenuity and the code they write with others. You can find a lot of excellent program code every day from some PHP websites, mailing lists, and news groups.
In this way, I am not encouraging you to wait all day for others to write code for you, but you can "stand on the shoulders of great men", fully carry forward the "use doctrine", and intelligently apply other people's Program code can save you a lot of time. Secondly, in PHP, you can easily build your own function library, which can save you a lot of trouble when writing programs in the future.
The author below introduces several common functions to you. Some of these functions come from some open source projects on the Internet, and some are selected from the mailing list. If you can add them to your own library, sooner or later you will find yourself benefiting from them.
1. General database processing functions
Compared with other CGI functions, one of the advantages of PHP is that it has very powerful database processing capabilities. However, in PHP, some specific functions are used to handle different databases, and there is a lack of general database processing functions. This greatly reduces the portability of program code, which also brings a lot of inconvenience to beginner programming friends.
On the Internet, many programmers have solved this problem by encapsulating classes. They wrote unified functions to handle any popular database - whether it is Mysql, which is popular in the Linux world, or SqlServer, which is widely popular on Windows platforms.
Personally, the author likes to use these functions very much, because you can directly use some simple functions such as "query" and "next_record" without having to consider the complexity of database connections and database handles. There is no need to consider what kind of database is used. If you need these functions, you can get them by visiting the following URLs:
◆http://phplib.netuse.de/
◆http://phpclasses.UpperDesign. com/browse.html/package/20
◆http://phpdb.linuxbox.com/

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主板上SPDIFOUT连接线序最近我遇到了一个问题,就是关于电线的接线顺序。我上网查了一下,有些资料说1、2、4对应的是out、+5V、接地;而另一些资料则说1、2、4对应的是out、接地、+5V。最好的办法是查看你的主板说明书,如果找不到说明书,你可以使用万用表进行测量。首先找到接地,然后就可以确定其他的接线顺序了。主板vdg怎么接线连接主板的VDG接线时,您需要将VGA连接线的一端插入显示器的VGA接口,另一端插入电脑的显卡VGA接口。请注意,不要将其插入主板的VGA接口。完成连接后,您可以

广联达软件是一家专注于建筑信息化领域的软件公司,其产品被广泛应用于建筑设计、施工、运营等各个环节。由于广联达软件功能复杂、数据量大,对电脑的配置要求较高。本文将从多个方面详细阐述广联达软件的电脑配置推荐,以帮助读者选择适合的电脑配置处理器广联达软件在进行建筑设计、模拟等操作时,需要进行大量的数据计算和处理,因此对处理器的要求较高。推荐选择多核心、高主频的处理器,如英特尔i7系列或AMDRyzen系列。这些处理器具有较强的计算能力和多线程处理能力,能够更好地满足广联达软件的需求。内存内存是影响计算

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。

查找方法:1、用strpos(),语法“strpos("字符串值","查找子串")+1”;2、用stripos(),语法“strpos("字符串值","查找子串")+1”。因为字符串是从0开始计数的,因此两个函数获取的位置需要进行加1处理。


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