Fixed non-documentary placeholders

UltiSnips/php.snippets

@@ -8,7 +8,7 @@ $${1:arrayName} = array('${2}' => ${3});${4}
 endsnippet
 
 snippet def "def"
-define('${1:FOO}', ${2:'bar'});${3}
+define('${1:VARIABLE_NAME}', ${2:'definition'});${3}
 endsnippet
 
 snippet do "do"
@@ -253,7 +253,7 @@ $0
 endsnippet
 
 snippet new "New class instance" b
-$${1:foo} = new ${2:${1/\w+\s*/\u$0/}}($3);
+$${1:variableName} = new ${2:${1/\w+\s*/\u$0/}}($3);
 $0
 endsnippet