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How can I find out in which file and line a given function was defined?
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A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered pair.
The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.
A function is not defined or is undefined if the value to be inputted is not in its domain. For instance, the domain of the function f(x)=√x f ( x ) = x is x≥0 x ≥ 0 .
You could also do this in PHP itself:
$reflFunc = new ReflectionFunction('function_name'); print $reflFunc->getFileName() . ':' . $reflFunc->getStartLine(); Either use a IDE that allows doing so (I would recomend Eclipse PDT), or you can allways grep it if on Linux, or using wingrep. In Linux it would be something like:
grep -R "function funName" * from within the root folder of the project.
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