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17 years ago
The note about the signature of the ReflectionParameter constructor is actually incomplete, at least in 5.2.5: it is possible to use an integer for the second parameter, and the constructor will use it to return the n-th parameter.



This allows you to obtain proper ReflectionParameter objects even when documenting code from extensions which (strangely enough) define several parameters with the same name. The string-based constructor always returns the first parameter with the matching name, whereas the integer-based constructor correctly returns the n-th parameter.



So, in short, this works:

<?php

// supposing the extension defined something like:

// Some_Class::someMethod($a, $x, $y, $x, $y)

$p = new ReflectionParameter(array('Some_Class', 'someMethod'), 4);

// returns the last parameter, whereas

$p = new ReflectionParameter(array('Some_Class', 'someMethod'), 'y');

// always returns the first $y at position 2

?>
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