我怎样才能缩短这个PHP if语句？ [英] How can I shorten this PHP if statement?

问题描述

我有一个if语句，我需要一个字符串比较许多不同的选择。在code下面我发布显示了我的意思是pretty清楚。我知道这样做的2种方式，但是其他甚至更长。那么，有没有使这样的事情，但在一个较短的方式任意功能？它可能看起来很可笑我问了，但我希望子页面的列表中增长非常快。这是code：

I have an if statement, and I need to compare a single string with many different options. The code I post below shows what I mean pretty clear. I know 2 ways of doing this, but the other is even longer. So, is there any function that makes something like this, but in a shorter way? It might seem silly what I asked for, but I expect the list of subpages to grow really fast. This is the code:

if  (
    $Url[0]=="contact"||
    $Url[0]=="report"||
    $Url[0]=="new"
    )
    {
    //Do something
    }

和我想知道如果有这样的事情：

And I'd like to know if there's something like this:

if ( weirdcomparefunction ($Url[0],"contact","report","new") )
    {
    //Do something
    }

我看到创建我自己的函数的问题在于传递变量的数量是（讽刺）变量。

The problem I see to create my own function is that the number of variables passed is (ironically) variable.

甚至是这样的：

$centered = array ("contact","report","new");
if ( weirdcomparefunction ($Url[0],$centered) )
    {
    //Do something
    }

我也想创建一个.txt来存储所有特征线子页面，但我需要一个大的脚本，所以我想首先要知道如果已经有一个weirdcomparefunction（）。因此，就需要很短，否则我有没有问题做了一些田地和IFS约10-20线。

I'm also thinking about creating a .txt to store all the subpages with breaklines, but I'd need a big script so I'd like to know first if there is already a weirdcomparefunction(). Therefore it'd need to be SHORT, otherwise I'd have no problem making about 10-20 lines with some whiles and ifs.

感谢大家。

推荐答案

<一个href=\"http://php.net/manual/en/function.in-array.php\">http://php.net/manual/en/function.in-array.php

$centered = array ("contact","report","new");
if(in_array($Url[0], $centered)) {
    //Do something
}

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