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phparraysloopsforeach
Jack Queen
Jack Queen

Reputation: 214

skipping first entry of a foreach loop

I want to skip the first entry of a foreach loop, I know a way to do it, but it uses a lot of lines of code, I was wondering if there was an easier way:

$i = 0;
foreach($url AS $u) {
    if($i!=0) $cats[check_url($u)] = $u;
    $i++;
}

Is there a better more official way?

Upvotes: 2

Views: 1050

Answers (2)

Tᴀʀᴇǫ Mᴀʜᴍᴏᴏᴅ
Tᴀʀᴇǫ Mᴀʜᴍᴏᴏᴅ

Reputation: 4216

If you have numeric keys for $url you can simply do like this :

foreach($url AS $k => $u) {
    if($k) $cats[check_url($u)] = $u;
}

But if your array has non numeric keys, I think what you have is the best way to do!

Upvotes: 0

Typel
Typel

Reputation: 1139

Another possible approach would be to use PHP's built in array_shift() function to pop the first item off the array before looping through.

If you aren't sure how your $url array is indexed, simply removing index [0] with unset($url[0]) may or may not solve the problem. For example, if $url is indexed by association, it may look more like this:

$url['first'] = "a value";
$url['second'] = "some other value";
$url['third'] = "a different value";

To be certain you are excluding the first "indexed" element, regardless of the key associated with it, you can use array_shift() like so:

array_shift($url);

This pops off the first element and reset()s the array pointer.

After this you can carry out your foreach loop like normal.

Upvotes: 1

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