php in_array()或array_search()无法正常工作 [英] php in_array() or array_search() not working

问题描述

我正在使用一个简单的php脚本在数组之类的元素中寻找

I am using a simple php script to look for an element in an array like

    $restricted = array('root/base', 'root2' ); 
    print_r($restricted);
    if( array_search('root/base', $restricted) ){
        echo "1";
    } else {
        echo "0";
    }

但是我总是得到以下输出

But I am always getting the following output

Array ( [0] => root/base [1] => root2 ) 0

这意味着array_search在给定数组中找不到元素.任何人都可以对发生的事情有所了解吗?

This means that the array_search is failing to find the element in the given array. Can anybody show some light on whats happening?

我也尝试用in_array()替换array_search().但这也返回了相同的错误.

I tried to replace array_search() with in_array() also. But that too returned the same error.

推荐答案

来自PHP DOC

array_search —在数组中搜索给定值，如果成功，则返回相应的键

array_search — Searches the array for a given value and returns the corresponding key if successful

索引为0，这就是您认为索引失败的原因

The index is 0 that is why you think its fails

使用

array_search('root/base', $restricted) !== false

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