What tools does php usually use for debugging?

What tools does php usually use for debugging? what tools does php generally use for debugging?
I want to change the php plug-in written by others. most of the code means that. I can see it clearly, but if I want to find the function source, or you can check whether a variable is running to a certain position or another break .. How to do this? I used notepad and notepad for online queries .. However, for systems with relatively small content written by these tools, a slightly large cms such as dede will have to survive,
What tools are used by developers to debug open-source code .. There is no easy-to-use tool ..

New students are hard to understand ..

Reply to discussion (solution)

Let's take a look at others' experiences. in my own words, editplus will view and write the code print_r + exit, and will interrupt the use of the browser to gradually try to use firebug to view JS results and network requests /..... looks very primitive,

In fact, I made C ++, and it was quite convenient at ordinary times.

Me and 1? I ?, Editplus ??
Small ???? Using vardump ()
?? ?? Using zend studio 5.5? Step? Method

Zengstudio click the function to see the function source.

Eclipse php

Html output is tested in the browser, echo + var_dump + exit
Write the php module and run the command line test (or simulate the console editor, such as sublime text)

Use your cpp to write an ide

I don't know what to debug? For convenience, find a good editor. I currently use phpdesign or phpstorm.

Directly use the command line> PHP-l path \ file. php that comes with php to check for syntax errors and tell you which line of code has an error. you do not need to use additional tools for convenience.

Xdebug

Var_dump ()

Var_dump () I use the thinkphp framework, which also has some internal debugging functions.

Always exit (); echo ""; var_dump (); add an error

Alas, I am also confused. I won't debug it. I switched to asp.net.

Var_dump () I use the thinkphp framework, which also has some internal debugging functions.
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Eclipse php

I personally think eclipse php is a very useful tool. However, the error call is basically a comprehensive tool, including eclipse automatic display, webpage display, and command requirements display or close.

Eclipse php

I personally think eclipse php is a very useful tool. However, the error call is basically a comprehensive tool, including eclipse automatic display, webpage display, and command requirements display or close. I also think

GoodsList

Zengstudio click the function to see the function source.
If the project is large and multiple files contain this function, you need to select a bunch of files .. The last time I checked my dream, I had to find it one by one.

Zendstudio 10 + xdebug + Firefox + The easiest Xdebug

When you browse a page in a browser, the corresponding code in the editor will be automatically called, and then you will track it step by step.

QQ: 33918040

Dreamveawer is actually slightly better than eclipse in the interface design, but I usually identify the error through ie directly. In fact, it is very convenient and will help you automatically locate it! If the number of rows in html is incorrect, it is a javascript issue. if it is a php issue, it will directly tell you how many rows in the php file, which is very convenient. try it!

I am also a newbie, using editplus and dw

Eclipse and zend studio