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Most efficient way to remove an element from an array, then reduce the size of the array.
Using unset() Function: The unset() function is used to remove element from the array. The unset function is used to destroy any other variable and same way use to delete any element of an array. This unset command takes the array key as input and removed that element from the array.
The array_splice() function removes selected elements from an array and replaces it with new elements. The function also returns an array with the removed elements. Tip: If the function does not remove any elements (length=0), the replaced array will be inserted from the position of the start parameter (See Example 2).
PHP
unset($array[1]);
You don't say what language you're using, but looking at that output, it looks like PHP output (from print_r()).
If so, just use unset():
unset($arr[1]);
this looks like PHP to me. I'll delete if it's some other language.
Simply unset($arr[1]);
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