I need to calculate two date’s difference in days, Where one date is fixed (i.e. first day of month ). Another date would be today’s date. I know how to calculate difference between it. But I want to know which one would be 100% effective, using DateTime::diff() or using date('d') function.
Anyone help me out to figure out which one would be more optimised and in any situation or any date it should be workable!!
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