My array :
$arr = array("jan","feb","mar","apr","mei","jun","jul","agu","sep","okt","nov","des");
then i do a foreach
foreach($arr as $ar){
echo $ar;
}
that will output jan to des
my question is how do i display the previous values in current key?
For example, when I get to feb, I want to display jan too, when I get to jul, i want to display jun, etc.
$previousValue = null;
foreach($arr as $ar){
echo $ar;
if($previousValue) {
echo $previousValue;
}
$previousValue = $ar;
}
foreach ($arr as $key => $ar) {
//check we aren't on jan (otherwise we get $key = -1 which doesn't work)
if ($key != 0) {
//print previous month followed by current month
echo $arr[$key - 1] . '-' . $ar . '<br />';
}
}
//OR, if you want to be able to roll through years then:
$last_key = end(array_keys($arr));
foreach ($arr as $key => $ar) {
//check we aren't on jan
if ($key != 0) {
//print previous month followed by current month
echo $arr[$key - 1] . ' - ' . $ar . '<br />';
} else {
echo $arr[$last_key] . ' - ' . $ar . '<br />';
}
}