Lately I had an issue with an array that contained some hundred thousands of values and the only thing I wanted to do was to check whether a value was already present. In my case this were IPs from a webserver log. So basically something like:Lately I had an issue with an array that contai
阅读背景：
在PHP中是否有替代数据结构而不是数组，我可以从不同的索引技术中受益？
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