You just pull out the keys using array_keys and add your session variable to the mix.

现在只需使用array_keys取出键值，将会话变量加到数组中。

youdao

If you get in your car in Los Angeles to drive to New York, do you just pull out of your driveway and start down the road?

如果你准备从洛杉矶出发开车到纽约去，你会开着车直接上路吗？

youdao

You get an idea, and you just pull out your computer on the bus, or on the car, or wherever, and say, "Oh, I'm going to lay down another track," you know. It's just painless.

不管在公车上，或者车里，任何地方，只要有一个想法，就可以放进电脑里，然后说“哦，我要创作出新的歌了”，就是这样轻而易举。

youdao

You can call it WebTravel 2.0--or you can just pull out what you need to plan your vacation.

FORBES: Magazine Article

Anything you want to get to, you can just pull it out and work on it.

FORBES: Tumblr: David Karp's $800 Million Art Project

If you're using it only as a flavoring agent, you can just pull the sprigs out at the end, but if you want to eat it and lamb loves rosemary it has to be very finely chopped.

WSJ: Too Many Cooks in the Kitchen? Not With the Right Plan