By using just these two core features of PHP, it is possible to convert any arbitrary XML data into JSON.

只需要这两种php核心特性，就可以将任何XML数据转化成json。

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First, init emits the startup event — one of the two core events.

首先，init会发出startup事件——这是两个核心事件之一。

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Therefore, consider the following two core options

因此，考虑以下两个核心选项

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Just as fast is Dell's new XPS Gen5, which runs off a two-core Intel 955X chipset.

FORBES: Magazine Article

If that's all a bit too much for you, Intel's also rolled out two dual-core Tigertons, including 2.93GHz E7220 and the 2.4GHz E7210, each of which have a TDP of 80 watts and 8MB of shared on-chip cache.

ENGADGET: Intel rolls out quad-core Tigerton processors

Secondly, the iPad Mini uses the nearly two-years old 1GHz dual-core A5 CPU found in the iPad 2, iPhone 4S and iPod Touch 5.

FORBES: The Trouble With Apple's iPad mini