As you can see below, I am going through an array called $subLinks, taking each as a $subLink, and adding it to the array called $linkArray, if it is not already there.
However on each iteration of the loop, $linkArray is cleared and starts from the beginning. So for example at the end of each loop $linkArray echos a list of links, and on the second loop that list of links is cleared and replaced with the links of the next $subLink.
My aim is to end up with one big array containing every $subLink - without duplicates,
$linkArray = array();
foreach($subLinks as $subLink){
# Validate and clean the links found
$subLink = cleanUrl($url,$subLink);
if(!in_array($subLink,$linkArray)){
$linkArray[2] = $subLink;
}
echo($linkArray[2].'<br />');
flushOutputBuffer();
}
An example of what is echoed is:
link1
link2
link3
At the next loop, this is echoed:
link1
link2
link3
What I'd like, is if it's not a duplicate, to add to the array, like this
link1
link2
link3
link4
link5
Any help really appreciated here,
Thanks
Update: The array seems to reset after 110 elements, and overwrites previous entries
You are always assigning the new link to [2] and overwrite the contents of [2] again and again and again, try this instead:
//...
if(!in_array($subLink, $linkArray)){
$linkArray[] = $subLink;
}
//...
This will append the new link to the end of an array.
You are not adding the items correctly. To populate an array, you would need to write
$linkArray[] = $subLink; // do not specify an index
Of course this is all moot, because there is a much, much better way of achieving the same result:
$linkArray = array_unique(array_map(
function($item) use($url) { return cleanUrl($url, $item); }, $subLinks
));
Um, because you're overwriting it in each loop? You write to the same index over and over again
If you want to append to the index, do it like this:
$yourVar[2][] = $valueToAppend
You want to get rid of duplicate entries, first just add every sublink to the link array; then simply use the function below to get rid of any duplicates. It's a one step process and one of the fastest ways to get unique data in your array.
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.
Syntax
Array = array_unique(array)
In the end you'll have 'one big array containing every $subLink - without duplicates'.
And thats that. Hope this helps, if so let me know.
Pk