As a mid-level PHPer rookie. Bored, love to twirling in various PHP forums. I saw a lot of coding HTML for beginners had asked a lot of the same questions. And I also encountered PHP when I learned. To let PHP begin Scholars take fewer detours. So suddenly nervous. Decided to write this article. For PHP beginners only if there is an error. Also, hope to point out. Not very grateful.
PHP is actually very easy to learn a language. If you want to be proficient in PHP for three years. Less than a year is enough. But why are we still a rookie after three years?
I don’t know where to start. Learning PHP, we have to learn the database. Learning architecture. Learning object-oriented. Learning front-end. Learning Linux. Learning protocols and even artists directly lead to PHPer is now the most tired programmer.
The most tired is nothing. Often PHP is considered to be the inferior program. With the lowest salary, it is necessary to master almost all knowledge of the web. This is unfair.
The good news is that we have gradually seen a change in China. More and more companies in China have turned to PHP from Java or C#. So PHPer must have their dreams. You will all be very B. Please firmly believe.
Going far. Going back to the point I want to talk about. The following questions contain the problems I have encountered. Maybe I don’t necessarily say that, or you don’t necessarily agree with me. I am very willing to accept your opinion. In short, we Just want to make PHPer stand up ๐
This is not the only PHP. as long as it is on the program. It will be encountered. At least I and I have encountered people around. And on the web. Often coding problems are very difficult to solve. Very difficult to debug. Sometimes the program is out Inexplicable problems; it is hard to think of coding problems and so on.
These problems are always bothering us. So I recommend PHP beginners. Must be coded uniformly. It is strongly recommended to be unified to UTF-8. Chinese is not recommended to use GBK or GB2312, etc. Because it is not known when transmitting in AJAX. Coded.
If you want to unify the code, you should pay attention to wherever the code may appear.
1) Encoding of the header header
Personally, suggest that you should add the following sentence in your PHP (except for special headers)
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Header ( "Content-type: text/html;charset=utf-8" ) ; |
This can avoid some problems. For example, we can see that some sites submit an alert and then jump. But they do not set the encoding. If his encoding is inconsistent with the browser’s default encoding, it will be garbled.
You are pure coding HTML for beginners. Be sure to put the meta code tag in front of the title tag. If you don’t understand it, remember to put the coded information in the first line of the head tag. The final result is this.
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<head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> ... |
2) Encoding of the file
We save the file, select the encoding must be unified. If you follow the above, we should choose UTF-8.
General editors have encoded the information in this document. If you are found not to be UTF-8, please change immediately.
For example, We opened a template file in Dreamweaver. We found GB2312 (Simplified Chinese) in the lower right corner. Do not make any changes at this time. Immediately CTRL+J and then select the encoding to change to UTF-8 mode and save.
The encoding of the file is not necessarily a PHP file. You must also ensure that your JavaScript and CSS files are UTF-8 encoded.
Another important point is that BOM. This Dongdong PHP is not very popular. So we have to choose UTF-8 without BOM format when saving. If you use the editor is UE. Then please focus Pay attention to this.
3) Database coding
I don’t want to say more about this. There are too many articles on the Internet. If you are MySQL, remember to do SET NAMES = ‘utf8’ every time you connect. And there is no horizontal line in the middle of utf8.
The programmer should theoretically be a perfectionist. They don’t just think about running the program. It’s also elegant.
But then again. After the program is finished according to MVC, is our code elegant? The answer is of course no.
Learning architecture is a process of understanding. When you appreciate the benefits of this architecture, you will understand its true meaning. Don’t blindly.
Sometimes we will do this. Use this month to learn MVC. Ok. I think you should do this. You learn to set your own goals.
But after a month we may not understand MVC. But at least we will base his basics according to his model. In other words, maybe we have not learned about the Sunflower Collection. But we should use the evil spirits.
3. Object-oriented issues
About PHP object-oriented problems. It has always been entangled. Some people do not think that PHP object-oriented is a good thing. Some people don’t even think that object-oriented is a good thing, such as Linus.
We don’t have to untangle this thing in the end. At least we should know from the birth of object-oriented to the present after so many years of evolution. Apply to various projects and even language. We have reason to believe that existence has its truth.
Practice is the only criterion for testing truth โ the more the object-oriented development, the better the situation. It seems that our study becomes a must.
Similar to the knowledge of some architectures. Object-oriented is not so eager to learn. Object-oriented is a kind of idea. But when it comes to a certain language, its meaning will also undergo some subtle changes.
PHP’s object-oriented is very flexible. Coupled with its unique magic method. It will create a special situation of object-oriented. Perhaps this is not the same as your usual object-oriented Java.
Not necessarily putting the methods, you need into a class is object-oriented. When you realize that object-oriented coding for you brings convenience and convenience, you have a deeper understanding of object-oriented.
The so-called desire is not up. Don’t worry. You want to understand the theory of relativity within a few days. It is pure nonsense.
4. Algorithm problem
It seems that PHP is always far from the algorithm. Most of PHP’s algorithms are based on arrays. And we know that the properties of PHP’s arrays are destined to be very large when the array becomes very large.
PHP is a website. You don’t have to give her a high hat. In the web, especially in the actual situation of the front end of the PHP service, there will be very few algorithms involved.
PHP’s algorithmic interview questions are nothing more than operations on arrays or strings. Moving the brain with the manual. That’s fine.
Then you may ask. I want to learn PHP. Then I still learn algorithms?
I think you need to learn. And you need to learn the data structure. This homework is like an internal work. It will affect your coding subtly.
At this time, we will cooperate with the swordsmanship in front of us. Congratulations, you have learned the Sunflower Collection!
5. The problem of the framework
The framework of PHP is the most common in all languages. It doesn’t use frameworks. What framework is chosen is a controversial topic.
My suggestion is to recommend learning at least one framework. This can deepen your understanding of PHP. Our learning framework is not to learn how to use this framework. How to do projects.
We’re going to look at its source code. See how he implemented it. At this point, you can choose to develop a small framework yourself. It’s not good to ask for it. Don’t ask others how many projects to use.
We are just learning.
6.JavaScript issues
I can say that I have seen so many languages. The most amazing thing is JavaScript. Usually, Java has always claimed that everything is an object. I think JavaScript is everything.
Is JavaScript eager to learn? Itโs hard to learn! It is usually used on the web. The general JavaScript operation is the DOM operation.
Is JavaScript difficult to learn? Difficult to learn! If we are bound by object-oriented thinking in other languages, it is difficult to understand the object-oriented JavaScript. And there are many concepts in JavaScript.
Prototype arguments call apply callee caller Concepts such as closures make us overwhelmed. Coupled with the strange JavaScript code style and its difficult to debug features directly lead us to avoid these rookies.
I once forwarded a code that implements document.ready. I have to admire the difference.
Personally feel that looking at some JavaScript framework source code is the best way to learn. I used to write my PHP framework because of the use of the unified entry + their own defined URL rules. So when you use the normal property for the get from Can not get the parameters.
At this time I thought of the formSerialize method in jQuery.form. I picked it up and made some changes. I can use it.
7.CSS issues
I think it’s different from separating CSS from JavaScript. I think CSS learning is more characteristic.
I want to say that CSS is the simplest thing. We just know some basic CSS properties. Writing a page is not a problem.
The main feature of CSS is that it must be done. You can’t write a page instead of the actual CSS book.
Another feature of CSS is that it is much more. Maybe this property can’t achieve your effect. Then you change one. This is the most stupid and most effective way ๐
Of course, this is only the requirement of the primary CSS. After this, we have to be compatible with the browser. This is not difficult to say that several browsers open property and property at the same time.
You can also memorize some hacks, such as IE6 _ IE knows *, etc. If you think that writing CSS is not enough standard, then put the hack in a different CSS file. For example, ie6 is called ie6.css
Then use the following code on the page.
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<!--[if lt IE 6]> <link href="css/ie6.css" rel="stylesheet" type="text/css" /> <![endif]--> |
The more advanced is, of course, the user experience and design. I don’t know if I don’t understand it. @_@ Hope to add people.
8.linux problem
I strongly recommend that you install a Linux system on everyone’s computer. If you feel too tossing, you can choose to install Ubuntu in Wubi mode. This is the easiest and most effective way for lazy people.
When you are bored, you can download a PHP source code and try it yourself. Avoid apt-get. Because often the server version is not real or centos. There is no such command.
And apt-get is often not the latest version, and can not be customized.
Linux always has such severe problems as living. For example, if the environment is slightly different, the compiler will not pass. The service will not come.
Don’t worry at this time. Look at the error message to see the log. Google try to solve it yourself.
After compiling, don’t feel like trying out different configurations. Also, modify the source code and try again.
For example, we downloaded the source code for Nginx. Then modify some headers and other places. You can compile your HTTP Web Server.
Of course, if you call BWS or GWS, you can do ๐
There is still a problem Linux needs to back command? This is understandable. Remember some common commands can improve the speed. I need to reflect on this point. Often some commonly used commands also need to look at the parameters.
The other one is Shell’s problem. Shell is not difficult. But the grammar is ugly in my opinion @_@. Look at the wiki to learn more than half. The main thing is to contact. We can see a phenomenon. Some companies are This is also a must for recruiting advanced PHPer.
Online Linux information is very much. Most of the problems you encounter will be encountered by others. So good at using Google. And familiar with English.
9. Language issues
The problem of this is too much war of words. In the end, no one has won. We don’t have to participate in these boring things. These are the young manures to do.
You have a cow B, do you have Linus cattle B? He sprayed C++ for so many years. How about C++?
So we don’t have to entangle ourselves. It’s OK to do what you do.
Since you have chosen PHP, don’t hesitate.
Maybe PHP is not enough when we are working on a project. Then we can use Java or C to make a middleware. This is not a good idea.
One language to play her biggest and most useful is the truth.
10. Attitude issues
Attitude must be modest and cautious. This is a virtue that a programmer should have. Don’t self-inflate.
The more you learn, the more you will find yourself.
Waiting for your cow B, you can say some arrogant words. But now we are not cattle B. At least if you see this article I wrote. You should not be a cow B. I said this article is for beginners. of:-)
11. Women’s problems
Hey.. solve this problem yourself @_@
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