Assuming that you have the complete string Field : ABC|DEF|GHI|JKL|MNO
:
$data = explode( ':', get_field('MyField' );
$parts = explode( '|', $data[1] );
foreach($parts as $k=>$part){
if($k && ($k < count($parts) ) ) echo ' / ';
echo $part;
}
… but if your field string is only ABC|DEF|GHI|JKL|MNO
, you can leave out the first explode step:
$parts = explode( '|', get_field('MyField' );
foreach($parts as $k=>$part){
if($k && ($k < count($parts) ) ) echo ' / ';
echo $part;
}