Bug #48376 for Chart-OFC2: coerce an array of strings to ints fed to $bar->values

If you feed strings instead of ints for values in the json output, ofc2 doesn't display the graph properly. It would be ideal if you could coerce an array of strings to ints fed to $bar->values since this was pretty hard to figure out why the chart wasn't rendering correctly example json that when fed to ofc2 renders chart incorrectly { "tooltip" : null, "y_axis" : { "max" : "1051" }, "elements" : [ { "type" : "bar", "values" : [ "62", "67", "100", "120", "116", "475", "244", "242", "119", "259", "370", "219", "12", "242", "349", "147", "404", "35", "270", "113", "182", "202", "71", "4", "2", "2", "1051", "248", "12", "3", "61" ] } ], "title" : { "text" : "Bar chart test" } }