If elseif condition inside foreach with array - php

Question

I'm using a if elseif condition inside the foreach loop. Inside both if and elseif two different functions are calling and retrieving value to same array $nice[]. If I run the following code, only the if condition is working.
$youtube = array(
'https://www.youtube.com/watch?v=nCwRJUg3tcQ1&list=PLv5BUbwWA5RYaM6E-QiE8WxoKwyBnozV2&index=4',
'http://vimeo.com/channels/vimeogirls/87973054123',
'http://www.youtube.com/watch?v=nCwRJUg3tcQ2&feature=relate',
'http://youtube.com/v/nCwRJUg3tcQ3?feature=youtube_gdata_player');
$nice = array();
foreach ($youtube as $url) {
if(preg_grep("/youtu/i", $youtube)){
$nice[] = getYoutubeId($url);
}elseif(preg_grep("/vimeo/i", $youtube)){
$nice[] = getVimeoId($url);
}
}
print_r($nice);
function getVimeoId($url)
{
if (preg_match('#(?:https?://)?(?:www.)?(?:player.)?vimeo.com/(?:[a-z]*/)*([0-9]{6,11})[?]?.*#', $url, $m)) {
return 'v_'.$m[1];
}
return false;
}
function getYoutubeId($url)
{
$parts = parse_url($url);
if (isset($parts['host'])) {
$host = $parts['host'];
if (false === strpos($host, 'youtube') &&
false === strpos($host, 'youtu.be')
)
{
return false;
}
}
if (isset($parts['query'])) {
parse_str($parts['query'], $qs);
if (isset($qs['v'])) {
return 'y_'.$qs['v'];
}
else if (isset($qs['vi'])) {
return 'y_'.$qs['vi'];
}
}
if (isset($parts['path'])) {
$path = explode('/', trim($parts['path'], '/'));
return 'y_'.$path[count($path) - 1];
}
return false;
}
The current output is:
Array (
[0] => y_nCwRJUg3tcQ1
[1] =>
[2] => y_nCwRJUg3tcQ2
[3] => y_nCwRJUg3tcQ3
)
There is no value in [1] position.

Answer 1

First-off, your if() Clause is checking on the main array$youtube instead of the value: $url.Perhaps, the snippet below helps:
$youtube = array(
'https://www.youtube.com/watch?v=nCwRJUg3tcQ1&list=PLv5BUbwWA5RYaM6E-QiE8WxoKwyBnozV2&index=4',
'http://vimeo.com/channels/vimeogirls/87973054123',
'http://www.youtube.com/watch?v=nCwRJUg3tcQ2&feature=relate',
'http://youtube.com/v/nCwRJUg3tcQ3?feature=youtube_gdata_player');
$nice = array();
foreach ($youtube as $url) {
if(preg_match("#youtu#i", $url)){
$nice[] = getYoutubeId($url);
}elseif(preg_match("#vimeo#i", $url)){
$nice[] = getVimeoId($url);
}
}