php - 我如何在数组中搜索值？

Question

我有一个这样的数组，我正在尝试搜索一个值使用这个数组:

$arr = Array('Slovenly Mexico','Slovenly Europe','Greece');

我正在使用这种条件。请帮忙

if($a[storename] == $arr[$i]){
                //some code

          }

但它不起作用，因为它作为索引值进行搜索，因此会出错。

Array
(
    [0] => Array
        (                    
            [storename] => Greece
        )

    [1] => Array
        (         
            [storename] => Slovenly Europe
        )


    [3] => Array
        (           
            [storename] => Slovenly Europe
        )

    [4] => Array
        (       
           [storename] => Greece
        )

    [5] => Array
        (
        [storename] => Slovenly Mexico

        )

    [6] => Array
        (
            [storename] => Slovenly Europe
        )

    [7] => Array
        (
         [storename] => Slovenly Mexico

        )
 } 

Answer 1

看看这个函数:

http://php.net/manual/en/function.array-search.php

<?php
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');

$key = array_search('green', $array); // $key = 2;
$key = array_search('red', $array);   // $key = 1;
?>