从子数组的值相等的数组中删除元素

Question

I have an array what consist of arrays. Have a looks into this file gist.
How you can see each array repeats two times. I need to delete the second, I need to compare them by 'key' value of array.
Thanks!

Answer 1

The undefined offset 6 error is telling you that there isnt an array element at position 6. Without seeing your error message and your code I cant tell you where the error is But you would need to see if the element exists using something like this:

if (isset($array[index]))
{
  //do something
}

This will handle the error, meaning you wont get the message, but you should see why the element doesnt exist, like Was there a problem when the arrays were made.

Your error message will tell you which line the problem was on and therefore which array variables are causing these errors.

UPDATE:

your code will always return true as you are comparing a value to itself therefore it will be an empty array.

$transll['key'] == $transll['key']