[英]find values in array from another array
First Array is 第一个数组是
Array
(
[2] => Course 1
[3] => C2
[4] => COMPUTATIONAL MATHEMATICS -I
[5] => BASIC ELECTRONICS
[6] => DATA STRUCTURE
[7] => COMMUNICATION SKILL
[8] => SYSTEMS PROGRAMMING
[9] => DIGITAL LOGIC
[10] => GROUP A:ENGINEERING DRAWING & WORKSHOP
)
my second array is 我的第二个数组是
Array
(
[0] => Array
(
[course_id] => 2
)
[1] => Array
(
[course_id] => 4
)
[2] => Array
(
[course_id] => 6
)
[3] => Array
(
[course_id] => 10
)
)
my expected result is 我的预期结果是
Array
(
[2] => Course 1
[4] => COMPUTATIONAL MATHEMATICS -I
[6] => DATA STRUCTURE
[10] => GROUP A:ENGINEERING DRAWING & WORKSHOP
)
I would like to find out if first array contains value in second array and return the result array . 我想找出第一个数组是否包含第二个数组中的值并返回结果数组。 any idea please? 有什么想法吗?
Try this 尝试这个
$firstArray = Array();
$firstArray[2] = "Course 1";
$firstArray[3] = "C2";
$firstArray[4] = "COMPUTATIONAL MATHEMATICS -I";
$firstArray[5] = "BASIC ELECTRONICS";
$firstArray[6] = "DATA STRUCTURE";
$firstArray[7] = "COMMUNICATION SKILL";
$firstArray[8] = "SYSTEMS PROGRAMMING";
$firstArray[9] = "DIGITAL LOGIC";
$firstArray[10] = "GROUP A:ENGINEERING DRAWING & WORKSHOP";
$secondArray = Array();
$secondArray[0]["course_id"] = 2;
$secondArray[1]["course_id"] = 4;
$secondArray[2]["course_id"] = 6;
$secondArray[3]["course_id"] = 10;
$result = array();
foreach($secondArray as $second){
$result[$second["course_id"]] = $firstArray[$second["course_id"]];
}
echo '<pre>';
print_r($result);
You can do something like this. 你可以做这样的事情。 Define result
as array. 将result
定义为数组。 and put second array's values in it by using for loop. 并使用for循环将第二个数组的值放入其中。
$result = array();
foreach($second_array as $sa){
$result[$sa] = $first_array[$sa];
}
print_r($result);
@Ronak's answer is the correct idea...the keys for the result just need to reference the course_id, otherwise an undefined offset error occurs. @Ronak的答案是正确的想法...结果键只需要引用course_id,否则会发生未定义的偏移量错误。
Sorry, I would have commented but not enough rep yet :) 抱歉,我会发表评论,但代表还不够:)
$result = array();
foreach($second_array as $sa){
$result[$sa['course_id']] = $first_array[$sa['course_id']];
}
print_r($result);
您需要转换为第二维数组,并在使用array_diff_key()之后
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.