PHP 多维数组搜索(按特定值查找键)

PHP Multidimensional Array Searching (Find key by specific value)(PHP 多维数组搜索(按特定值查找键))

问题描述

我有这个多维数组.我需要搜索它并只返回与slug"值匹配的键.我知道还有其他关于搜索多维数组的线程，但我对适用于我的情况的了解还不够.非常感谢您的帮助！

I have this multidimensional array. I need to search it and return only the key that matches the value of the "slug". I know there are other threads about searching multidimensional arrays, but I'm not really understanding enough to apply to my situation. Thanks very much for any help!

所以我需要一个类似的函数:

So I need a function like:

myfunction($products,'breville-one-touch-tea-maker-BTM800XL');
// returns 1

这是数组:

$products = array (
1  => array(
        'name'          => 'The Breville One-Touch Tea Maker',
        'slug'          => 'breville-one-touch-tea-maker-BTM800XL',
        'shortname'     => 'The One-Touch Tea Maker',
        'listprice'     => '299.99',
        'price'         => '249.99',
        'rating'        => '9.5',
        'reviews'       => '81',
        'buyurl'        => 'http://www.amazon.com/The-Breville-One-Touch-Tea-Maker/dp/B003LNOPSG',
        'videoref1'     => 'xNb-FOTJY1c',
        'videoref2'     => 'WAyk-O2B6F8',
        'image'         => '812BpgHhjBML.jpg',
        'related1'      => '2',
        'related2'      => '3',
        'related3'      => '4',
        'bestbuy'       => '1',
        'quote'         => '',
        'quoteautor'    => 'K. Martino',
        ),

2  => array(
        'name'          => 'Breville Variable-Temperature Kettle BKE820XL',
        'slug'          => 'breville-variable-temperature-kettle-BKE820XL',
        'shortname'     => 'Variable Temperature Kettle',
        'listprice'     => '199.99',
        'price'         => '129.99',
        'rating'        => '9',
        'reviews'       => '78',
        'buyurl'        => 'http://www.amazon.com/Breville-BKE820XL-Variable-Temperature-1-8-Liter-Kettle/dp/B001DYERBK',
        'videoref1'     => 'oyZWBD83xeE',
        'image'         => '41y2B8jSKmwL.jpg',
        'related1'      => '3',
        'related2'      => '4',
        'related3'      => '5',
        'bestbuy'       => '1',
        'quote'         => '',
        'quoteautor'    => '',
        ),
);

推荐答案

很简单:

function myfunction($products, $field, $value)
{
   foreach($products as $key => $product)
   {
      if ( $product[$field] === $value )
         return $key;
   }
   return false;
}

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