Why use Xdebug

Xdebug and Code Analysis FAQ

What is the use of XDebug?

Xdebug allows you to break during code execution and inspect all the variables in scope during a request. What this means is you have everything you need to troubleshoot during only one iteration of this cycle.

What is XDebug profiling?

Introduction # Xdebug’s Profiler is a powerful tool that gives you the ability to analyse your PHP code and determine bottlenecks or generally see which parts of your code are slow and could use a speed boost.

How does XDebug remote work?

XDebug works over the protocol that requires your local machine to listen for incoming connections from a server where an application you are debugging is located. You may already have used debugging tools that simply connect to a remote server or a process of your application.

How does PHP XDebug work?

When Xdebug is running, it will call back to your IDE (like PhpStorm or VS Code) from the server where it’s running. Your IDE will sit and listen for that connection on a specific port (typically port 9000 or 9003).

How do I use xdebug VS code?

Step 2 — Enabling the XDebug extension in PHP

  1. Launch VS Code.
  2. Install the Felix Becker PHP Debug extension. The PHP Debug extension may be found in VSCode’s Extensions tab by searching for it.
  3. Click on the Run tab and click on add configuration. Now, you’ll need to pick the PHP environment. A new launch.

What is xdebug trace?

Xdebug allows you to log all function calls, including parameters and return values to a file in different formats. Those so-called “function traces” can be a help for when you are new to an application or when you are trying to figure out what exactly is going on when your application is running.

How do you test xdebug?

Given that, you can confirm that xDebug is installed and in place by trying the following:

  1. phpinfo() — this will show you all the extensions that are loaded, including xDebug. …
  2. If that isn’t good enough for you, you can try using the var_dump() function. …
  3. xDebug modifies PHP’s error output.

How do I use xdebug on a remote server?

Running Xdebug on a remote host

  1. Install the php-xdebug package on the server.
  2. Make sure you only allow incoming connections from 127.0. 0.1 at port 9000.
  3. Open an SSH tunnel to the remote server using: ssh -R 9000:localhost:9000 [email protected]
  4. Follow the four steps of “Running Xdebug in Vagrant”

What is xdebug port?

The port to which Xdebug tries to connect on the remote host. Port 9003 is the default for both Xdebug and the Command Line Debug Client. As many clients use this port number, it is best to leave this setting unchanged. This setting can additionally be configured through the XDEBUG_CONFIG environment variable.

How does Xdebug work with PhpStorm?

PhpStorm supports the use of Xdebug in the Just-In-Time (JIT) mode so it is not attached to your code all the time but connects to PhpStorm only when an error occurs or an exception is thrown. Depending on the Xdebug version used, this operation mode is toggled through the following settings: Xdebug 2 uses the xdebug .

How do I configure Xdebug?

Configuring Xdebug

  1. Choose the Right Xdebug Binaries. Choose the version depending on your PHP version, but always 32bit. …
  2. Copy Xdebug binary to your PHP Extensions Folder. PHP extensions folder is usually located within your PHP runtime, in ext subfolder. …
  3. Update PHP Configuration. …
  4. Verify Installation.

Can you step through PHP code?

It’s simple to control, but there’s a lot going on. The debugger will evaluate variables, you can set watches on variables, and you have access to the call stack. Once the debugger is paused on a breakpoint (or by manually hitting the pause button/pressing F6) you’re ready to step through the code.

Can PHP write to console?

log() and the json_encode() Function to Write to the Console in PHP. We can use the json_encode() function along with the JavaScript console. log() to write to the console in PHP. The json_ecode() function converts the given associative array into a JSON object and indexed array into a JSON array.

What is your most preferable approach while debugging PHP code?

The best and more user-friendly way of debugging most of the people prefer if they are using an IDE for coding is using XDebug. XDebug is a PHP extension that helps in the development and debugging and provides a single step debugger that you can use with an IDE like PHPStorm.

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