Get a month's start and end dates

$ y = "2003";

$ m = "5";

$ D = STRTOTIME ("$ Y- $ M-1"); //

$ E = STRTOTIME ("$ Y- $ M -". Date ("t", $ d)); // End this month

//verification

Echo Date ("Y-M-D", $ D);

Echo Date ("Y-M-D", $ E);

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