[英]Using Single element of Array as service constructor argument in symfony2
在http://symfony.com/doc/current/components/dependency_injection/parameters.html上的symfony2文档中,它指出(在服务定义中)参数可以定义为数组,例如:
parameters:
foo.class:"Foo"
foo.args:
- arg1
- arg2
我想知道如何将foo.args数组的单个元素传递给服务构造函数,即:
services:
foo:
class:"%foo.class%"
arguments:["%foo.args.1%"] //this line is in question.does this resolve to
//"arg1"?if not, what does?
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