Description:
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It would be nice to find a way how to explicitly set a name of parameter passed to the function, which has default values for its parameters, so i could change only the values i need to change. It can be bypassed in several ways (arrays, classes etc.), but it allways results in bunches of code, which is not nessesary and makes the program less practical.
Bug #17076 suggests a possibility of omitting default parameters, but the solution still requires to keep order of parameters.

Reproduce code:
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function x($a='AAA', $b='BBB') {
	print $a;
	print $b;
}

x($b='111'); //or any other suitable syntax

Expected result:
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AAA111

Actual result:
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111BBB