从数组中获取特定键
Get specific key from an array
这是我在 Symfony 会话中输入的内容
$this->session->set('teams', [
'team_1' => ['MyTeamNameA' => ['player-1' => $safe['team-1-player-1'], 'player-2' => $safe['team-1-player-2'], 'player-3' => $safe['team-1-player-3'], 'player-4' => $safe['team-1-player-4'], 'points' => 0]],
'team_2' => ['MyTeamNameB' => ['player-1' => $safe['team-2-player-1'], 'player-2' => $safe['team-2-player-2'], 'player-3' => $safe['team-2-player-3'], 'player-4' => $safe['team-2-player-4'], 'points' => 0]],
]);
现在,在我的 Twig 中,我想检索我的 team_1
的名字,例如,我这样做了:
app.session.get('teams')['team_1']
它不起作用,但是,如果我转储最后一段代码,我会得到如下图所示的结果:
我觉得我很接近答案,但到目前为止。
既然keys
会return你一个简单的数组,那么键是从0
到(array | length) - 1
的整数,用Twig来表达。
请注意,当您定义数组
时,这实际上与 PHP 的行为相同
['foo', 'bar', 'baz']
这将严格等同于
[0 => 'foo', 1 => 'bar', 2 => 'baz']
所以在你的情况下,因为数组中只有一个元素,你可以使用 array[0]
或 array.0
.
总而言之,这可行:
{{ (app.session.get('teams').team_1 | keys).0 }}
测试
这是我在 Symfony 会话中输入的内容
$this->session->set('teams', [
'team_1' => ['MyTeamNameA' => ['player-1' => $safe['team-1-player-1'], 'player-2' => $safe['team-1-player-2'], 'player-3' => $safe['team-1-player-3'], 'player-4' => $safe['team-1-player-4'], 'points' => 0]],
'team_2' => ['MyTeamNameB' => ['player-1' => $safe['team-2-player-1'], 'player-2' => $safe['team-2-player-2'], 'player-3' => $safe['team-2-player-3'], 'player-4' => $safe['team-2-player-4'], 'points' => 0]],
]);
现在,在我的 Twig 中,我想检索我的 team_1
的名字,例如,我这样做了:
app.session.get('teams')['team_1']
它不起作用,但是,如果我转储最后一段代码,我会得到如下图所示的结果:
我觉得我很接近答案,但到目前为止。
既然keys
会return你一个简单的数组,那么键是从0
到(array | length) - 1
的整数,用Twig来表达。
请注意,当您定义数组
时,这实际上与 PHP 的行为相同['foo', 'bar', 'baz']
这将严格等同于
[0 => 'foo', 1 => 'bar', 2 => 'baz']
所以在你的情况下,因为数组中只有一个元素,你可以使用 array[0]
或 array.0
.
总而言之,这可行:
{{ (app.session.get('teams').team_1 | keys).0 }}
测试