- ucfirst: documentation ( source)
<?php
$obj = new stdClass;
$obj->color = function( $item ){
$arr = ["rose"=>"red",
"violet"=>"blue",
"grass"=>"green"];
return $arr[$item];
};
$flowers = [0=>"rose",1=>"violet"];
foreach ($flowers as $key => $flower){
echo ucfirst("{$flower}s are ");
echo $obj->color($flower);
echo ($key == 0)? ",\n" : " ...\n";
}