Array unique

If sort_flags is SORT_STRING, formerly array has been copied and non- unique elements have been removed (without packing the array afterwards), but now a new array is built by adding the unique elements. The array_ unique() function removes duplicate values from an array. If two or more array values are the same, the first appearance will be kept and the other will be removed. PHP: Removes duplicate values from an array. The array _ unique () is used to remove duplicate values from an array.

Note: The keys are preserved. False, return_inverse=False, return_counts=False, axis=None) ¶ Find the unique elements of an array. Returns the sorted unique elements of an array. Use unique to find the unique elements in the concatenated vector.

The unique function performs exact comparisons and determines that some values in x are not exactly equal to values in y. These are the same elements that have a nonzero difference in x-y. Thus, c contains values that appear to be duplicates. The quickest way to achieve this is to use the array _flip function built-in to PHP. Get all unique values in a JavaScript array. Array::Unique lets you tie an array to hmmm, itself (?) and makes sure the values of the array are always unique.

Since writing this I am not sure if I really recommend its usage. I would say stick with the hash version and document that the variable is aggregating a unique list of values. Array: The Array to use $iColumn 0-based column to be used - default 0. D only) $iBase The array is 0-based or 1-based.

So, actually, in the above code, we filter out each repetitive value using filter function and pass the unique callback to each array item. The array indexOf() method returns a first index at which the given element can be found in an array , or -if it is not present in an array.