launch.json

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [{
            "name": "Listen for XDebug",
            "type": "php",
            "request": "launch",
            "port": 9001,
            "pathMappings": {
                "/var/www": "${workspaceFolder}"
            },
            "preLaunchTask": "toggle-xdebug-on",
            "postDebugTask": "toggle-xdebug-off"
        },
        {
            "name": "XDebug CLI",
            "type": "php",
            "request": "launch",
            "port": 9001,
        },
        {
            "name": "Launch currently open script",
            "type": "php",
            "request": "launch",
            "program": "${file}",
            "cwd": "${fileDirname}",
            "port": 9001
        },
    ]
}