$_GET insertion when hitting enter

When using PHPEclipse, often times when I press return at the end of a
line, "$_GET" is appended to the end of the line, then the cursor begins a
new line. The problem happens intermittently. I've tried to establish
exactly what circumstances cause this to happen, but cannot. It doesn't
happen each time I hit enter, or half of the time, otherwise it would be a
severe annoyance. It seems it most likely occurs when I hit return after
typing an open brace character when starting an if-block or function.
Thanks


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