(PHP 7)
ReflectionGenerator::getTrace — Gets the trace of the executing generator
$options = DEBUG_BACKTRACE_PROVIDE_OBJECT
  ] )Get the trace of the currently executing generator.
options
       The value of options can be any of the following
       the following flags.
      
| Option | Description | 
|---|---|
| DEBUG_BACKTRACE_PROVIDE_OBJECT | Default. | 
| DEBUG_BACKTRACE_IGNORE_ARGS | Don't include the argument information for functions in the stack trace. | 
Returns the trace of the currently executing generator.
Example #1 ReflectionGenerator::getTrace() example
<?php
function foo() {
    yield 1;
}
function bar()
{
    yield from foo();
}
function baz()
{
    yield from bar();
}
$gen = baz();
$gen->valid(); // start the generator
var_dump((new ReflectionGenerator($gen))->getTrace());
The above example will output something similar to:
array(2) {
  [0]=>
  array(4) {
    ["file"]=>
    string(18) "example.php"
    ["line"]=>
    int(8)
    ["function"]=>
    string(3) "foo"
    ["args"]=>
    array(0) {
    }
  }
  [1]=>
  array(4) {
    ["file"]=>
    string(18) "example.php"
    ["line"]=>
    int(12)
    ["function"]=>
    string(3) "bar"
    ["args"]=>
    array(0) {
    }
  }
}