<?php
$array = array('a','b','c','d','e','f'); $i = 0;
foreach($array as $v){
if (($i++) % 2==0)
$arr[]=$v.' ';
else {
}
}
PD9waHAKCiRhcnJheSA9IGFycmF5KCdhJywnYicsJ2MnLCdkJywnZScsJ2YnKTsKJGFyciA9IGFycmF5KCk7CiRpID0gMDsKZm9yZWFjaCgkYXJyYXkgYXMgJHYpewogIGlmICgoJGkrKykgJSAyPT0wKQogICAgJGFycltdPSR2LicgJzsKICBlbHNlIHsKICAgICRhcnJbY291bnQoJGFyciktMV0uPSR2OwogIH0KfQpwcmludF9yKCRhcnIpOw==