Stop - Terminate the current execution of the program and clear the variables stack and breakpoints from memory. The instruction pointer will point to the statement where the execution pause. The program execution will pause at the next breakpoint if there is any. Resume - Resume the execution as the program executes normally till the next breakpoint encounters. It skips the function and executes it without entering into it. Step Over - Execute the current statement without going into the function if it's there. Step Out or Step Return - Execute the remaining statements of the function completely and move out of the function and set the instruction pointer on the statement next to the function call. The execution will pause at the first statement of the function.
We can step into the function called on the current statement to further check it. Step Into - Move to the next statement in case there is no function call or enter the function to debug it in case there is a function call on the current statement. The breakpoints are added intentionally to check the program for possible errors. These are listed below.Ĭurrent Instruction Pointer - The instruction pointer pointing to the current statement where the debugger is paused and waiting for the next instructions.īreakpoint - The program execution pauses at the breakpoint until further instructions are not provided by the debugger. This section explains all the major terms specific to debugging. Notes: I am following Containerize PHP with NGINX, MySQL, and MongoDB using Docker Containers for this tutorial. You can also follow How To Install Docker Engine on Ubuntu 20.04 LTS, Containerize PHP with Apache, MySQL, and MongoDB using Docker Containers, Containerize PHP with NGINX, MySQL, and MongoDB using Docker Containers, and How To Install VSCode For PHP On Ubuntu. It assumes that Docker and Visual Studio Code are already installed on the Ubuntu system. In this tutorial, we will discuss the terms specific to debugging and the steps required to debug PHP programs using Xdebug 3 and Visual Studio Code or VS Code for PHP applications containerized using Docker containers on Ubuntu 20.04 LTS.
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