Is there any way of not copying the specific array in the foreach loop?
Here's the code
<?php
$letters = array("A","B","B","C");
foreach ($letters as $char){
if ($char == "B") {
continue;
}
echo $char;
}
?>
I want my output to be only ABC not AC
You could strip non-unique elements first:
foreach(array_unique($letters) AS $char)
To copy array use
$a = array("A","B","B","C");
$b = array_unique($a); // $b will be a different array with unique values
There is no need to use foreach. In PHP by default variables are not assigned by reference but by the value unless you use & operator.
The other way is to use array_merge()
$a = array("A","B","B","C");
$b = array();
$b = array_merge(array_unique($a), $b);
In both cases the result will be A B C
Try like
<?php
$letters = array("A","B","B","C");
$letters = array_unique($letters);
foreach ($letters as $char){
echo $char;
}
?>
array_unique($letters) should be $letters = array_unique($letters); $letters isn't being passed by reference as with sort($letters). php.net/manual/en/function.array-unique.php
echo implode(array_unique($letters));