我想从msgid中的msgstr复制字符串。没什么，只是为了克隆它。我需要使用PHP完成此操作。我认为这应该有助于正则表达式，但我不知道如何使用它。任何帮助表示赞赏。感谢。
msgid ""
"We're truly sorry, but there is no such page.<br /> It might have been "
"removed, had its name changed, or is temporarily unavailable."
msgstr ""
msgid "Private messages"
msgstr ""
msgid "Settings"
msgstr ""
msgid "Article submitted by %s"
msgstr ""
msgid "My articles"
msgstr ""