ReflectionGenerator
PHP Manual

ReflectionGenerator::getTrace

(PHP 7)

ReflectionGenerator::getTrace — Gets the trace of the executing generator

説明

public array ReflectionGenerator::getTrace ([ int $options = DEBUG_BACKTRACE_PROVIDE_OBJECT ] )

Get the trace of the currently executing generator.

パラメータ

options

The value of options can be any of the following the following flags.

Available options
Option Description
DEBUG_BACKTRACE_PROVIDE_OBJECT Default.
DEBUG_BACKTRACE_IGNORE_ARGS Don't include the argument information for functions in the stack trace.

返り値

Returns the trace of the currently executing generator.

例

例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());

上の例の出力は、 たとえば以下のようになります。

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) {
    }
  }
}

参考

ReflectionGenerator
PHP Manual