[英]How To Perform array_search In Multi Dimensional Array?
我有这个代码:
$order_list = array ( array ("tangible", 1, 8, 33, 19000),
array ("tangible", 1, 9, 8, 19000),
array ("tangible", 6, 3, 24, 19000),
array ("tangible", 6, 2, 10, NULL),
array ("tangible", 1, 17, 11, 28000));
$key = array_search(3, array_column($order_list, $order_list[2]));
我想基于$order_list[$i][2]
得到$order_list[$i][3]
的值。
例如,如果我把:
3
我将得到24
回报
9
我将得到8
作为回报
等等...
我试图使用array_search:
$key = array_search(3, array_column($order_list, $order_list[2]));
但是我收到了这个错误:
Warning: array_column(): The column key should be either a string or an integer in /home/***/public_html/***.php on line 8
Warning: array_search() expects parameter 2 to be array, boolean given in /home/***/public_html/***.php on line 8
在这种情况下如何执行array_serach? 谢谢你。
<?php
$search = 9;
$order_list = array ( array ("tangible", 1, 8, 33, 19000),
array ("tangible", 1, 9, 8, 19000),
array ("tangible", 6, 3, 24, 19000),
array ("tangible", 6, 2, 10, NULL),
array ("tangible", 1, 17, 11, 28000));
foreach ($order_list as $string){
if (in_array($search,$string)){
//repsonse here
}
}
?>
我创建了一个通用函数来获取2'd数组中当前值的下一个值。 看看下面的功能。 另请查看函数的变量描述以了解函数中的输入:
/***
* @param array $array input array
* @param $search_value value that need to be searched
* @param $search_index index of inner array where current value exists
* @return next value of current value
*/
function getNextSequence(array $array, $search_value, $search_index)
{
$result = null;
$key = array_search($search_value, array_column($array, $search_index));
if ($key !== false) {
$result = (isset($array[$key][$search_index + 1])) ? $array[$key][$search_index + 1] : null;
}
return $result;
}
$order_list = array(
array("tangible", 1, 8, 33, 19000),
array("tangible", 1, 9, 8, 19000),
array("tangible", 6, 3, 24, 19000),
array("tangible", 6, 2, 10, NULL),
array("tangible", 1, 17, 11, 28000)
);
var_dump(getNextSequence($order_list, 3, 2)); //output: int(24)
var_dump(getNextSequence($order_list, 9, 2)); //output: int(8)
var_dump(getNextSequence($order_list, 10, 2)); //output: Null
var_dump(getNextSequence($order_list, 2, 2)); //output: int(10)
其他方式.....
$search = 9;
$order_list = array ( array ("tangible", 1, 8, 33, 19000),
array ("tangible", 1, 9, 8, 19000),
array ("tangible", 6, 3, 24, 19000),
array ("tangible", 6, 2, 10, NULL),
array ("tangible", 1, 17, 11, 28000));
foreach ($order_list as $string){
if ($string[2] == $search){
print_r( $string);
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.