php - $this->{$this->varname}() syntax -

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this question has answer here:

http://www.php.net/manual/en/functions.variable-functions.php#24931

that function $this->{$this->varname}(). tried out , confirmed that's valid syntax leaves me wondering... php.net discuss use of curly brackets in variable names that?

variable variables:

class properties may accessed using variable property names. ...

curly braces may used, delimit property name.

see examples on page, too.


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