How to remove duplicate values in PHP?

Question

I need help. Want to remove duplicate values from array in php.

$categoryTotal echoes 144 125 262 108 351 177 266 269 270 268 309 144 125 262 238 108

On using:

vardump()

I get

Array ( [0] => 144 [1] => 125 [2] => 262 [3] => 108 [4] => 351 [5] => 177 [6] => 266 [7] => 269 [8] => 270 [9] => 268 [10] => 309 [14] => 238 )

I used sort to sort the values in ascending order I get:

108 108 125 125 144 144 177 238 262 262 266 268 269 270 309 351

but then using $categoryTotal=array_unique($categoryTotal,SORT_NUMERIC); few values like 309 351 disappear.

Would like to know how to know out duplicate values from this array.

can you put the entire code, it's a little bit confusing here — Nagasaki, Apr 17 '13 at 15:09
Are those disappearing values integers, too, or are they strings... when mixing strings, ints and floats you might get unexpected results, which is stated in the docs — Elias Van Ootegem, Apr 17 '13 at 15:12

score 3 · Answer 1 · answered Apr 17 '13 at 15:06

3

Asked before.

$array = array(1, 2, 2, 3);
$array = array_unique($array); // Array is now (1, 2, 3)

answered Apr 17 '13 at 15:06

karmafunk

Thanks all. Issue was i was running for ($i=0 to $i – Shashank Ashok Chinchli Apr 18 '13 at 15:00

score 1 · Answer 2 · answered Apr 17 '13 at 15:06

1

Use the array_unique() function, like this:

$noDuplicates = array_unique($categoryTotal);

answered Apr 17 '13 at 15:06

Matt Cain

2 Answers2