Array Unique执行后不显示某个数组

Question

I'm using array_unique() to remove a duplicate value but it gives me an error when the value comes from a string then converted using explode, and values not displaying correctly

I'm using http://phptester.net/ to test

$email = '[e-mail],[e-mail],[e-mail],[e-mail]';

$emailList = array_unique(array_filter(array_map('trim',explode(',',$email))));

for($i = 0; $i < count($emailList); $i++){
    echo $emailList[$i];
}

Answer 1

I would do it like this :

$email = '[e-mail],[e-mail],[e-mail],[e-mail]';

$emailList = (array_map('trim',explode(',',$email)));

$result = array_unique($emailList);
var_dump($result);

In case you want to print the array values, using for-loop, you can do like this:

$email = '[e-mail],[e-mail],[e-mail],[e-mail]';

$emailList = (array_map('trim',explode(',',$email)));

$result = array_unique($emailList);

for($i = 0; $i < count($emailList); $i++){
    if( $emailList[$i]!=null)
       echo $emailList[$i];
}