如何从preg_match_all生成的数组中删除重复项？ [英] How do I remove duplicates from a preg_match_all generated array?

问题描述

如何从preg_match_all生成的数组中删除重复项？

How do I remove duplicates from a preg_match_all generated array?

Array
    (
    Array
        (
            'font-family: "Comic Sans";',
            'font-weight: bold;',
            'font-weight: normal;',
            'font-family: "Comic Sans";',
            'font-weight: normal;'
        )

    Array
        (
            'font-family',
            'font-weight',
            'font-weight',
            'font-family',
            'font-weight'
        )

    Array
        (
            '"Comic Sans"',
            'bold',
            'normal',
            '"Comic Sans"',
            'normal'
        )
    )

如您所见，有多个重复值。没有重复值的新数组应如下所示。

As you can see there are several duplicate values. The new array without the duplicate values should look like this.

Array
    (
    Array
        (
            font-family: "Comic Sans",
            font-weight: bold,
            font-weight: normal,
        )

    Array
        (
            font-family,
            font-weight,
            font-weight
        )

    Array
        (
            "Comic Sans",
            bold,
            normal
        )
    )

我知道我可以使用foreach来做到这一点，但是我敢肯定有一种更漂亮的方法可以实现这一结果。我忽略了什么？

I know I could do this with an foreach but I`m sure there is a much prettier way to accomplish this result. What do I overlook?

推荐答案

您可以通过以下方式做到：

You can do it via:

//$rgData comes from preg_match_all
$rgResult = array_map('array_unique', $rgData);

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