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What does _('foo') mean in PHP? More specifically, what's the underscore doing there? It is some kind of function or maybe an escape sequence? I've seen it in several scripts recently but just produces error messages for me (PHP 5.0.4).
Thanks in advance...
"foo", "bar", and "foobar" are generally used as place holders by programmers; a way of saying "[insert your code/variable/constant/etc. here]". Depending on the context in which you find it in the example code, you would replace "foo" in your own code with a function, a string literal, a variable, and so on.
I haven't come across "_('foo')" in any of the PHP scripts I've looked at, though, but it seems unlikely (given PHP's rules of syntax) that it could represent a function or an escape sequence by itself; more than likely, it's meant to be replaced by something in your own code.
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