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In this article Xiaobian for you to introduce in detail "PHP how to specify the two-dimensional array of keys", the content is detailed, the steps are clear, the details are handled properly, I hope this "PHP how to specify the two-dimensional array of keys" article can help you solve your doubts, the following follows the editor's ideas slowly in depth, together to learn new knowledge.

For the following example, we created a two-dimensional array of specified keys (associative arrays):

Example

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