How to check which php file a function is defined in?

How to check which php file the function appearing in a certain php script is defined in? Use ReflectionFunction. ReflectionMethod Chinese Documentation ReflectionFunction Chinese Documentation

getMessage();
        return;
    }
    $start = $func->getStartLine() - 1;
    $end =  $func->getEndLine() - 1;
    $filename = $func->getFileName();
        echo "function $funcname defined by $filename($start - $end)\n";
    }
    function_dump('a');
    function_dump(array('b', 'f'));
    $b = new b();
    function_dump(array($b, 'f'));
?>

Use phpstorm to open the entire project, then Ctrl+click the function name to jump to the definition.

If you use an IDE, just ctrl+click with the mouse.

function function name in the entire project
.Use the reflection classecho (new ReflectionFunction('function name'))->getFileName( )
The above is how to check the content of a function defined in that PHP file in PHP. For more related content, please pay attention to the PHP Chinese website (m.sbmmt.com)!