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php中如何优雅的将一个字符串打乱顺序然后输入(不利用数组)？

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Release： 2016-06-06 20:27:47
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后台返回的字符串，需要将字符串中字符的顺序打乱然后输出，我想到了将字符串切割成数组，然后利用数组的shuffle()将数组打乱，最后将数组拼接成字符串再输出，但是这样感觉效率太低，如何优雅的实现这个需求？

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后台返回的字符串，需要将字符串中字符的顺序打乱然后输出，我想到了将字符串切割成数组，然后利用数组的shuffle()将数组打乱，最后将数组拼接成字符串再输出，但是这样感觉效率太低，如何优雅的实现这个需求？

<code class="php">echo str_shuffle('http://segmentfault.com/q/1010000003776023');//q/20730hg/a70fptlnee6t3s0/11t/:otucm00.0m0</code>
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