How to format an UTC date to use the Z (Zulu) zone designator in php?

problem ：

I need to display and handle UTC dates in the following format: I need to display and process in the following format UTC date ：

2013-06-28T22:15:00Z2013-06-28T22:15:00Z

As this format is part of the ISO8601 standard I have no trouble creating DateTime objects from strings like the one above. Because this format is ISO8601 Part of the standard , So I can easily create... From the above string DateTime object .However I can't find a clean way (meaning no string manipulations like substr and replace, etc.) to present my DateTime object in the desired format. But I can't find a clean way （ It means there is no such thing as substr and replace Wait for string operation ） To display my... In the desired format DateTime object .I tried to tweak the server and php datetime settings, with little success. I try to adjust the server and php Date and time settings , But to little effect .I always get: I always get ：

$date->format(DateTime::ISO8601); // gives 2013-06-28T22:15:00+00:00

Is there any date format or configuration setting that will give me the desired string? Is there any date format or configuration setting that can provide me with the required string ？Or I'll have to append the 'Z' manually to a custom time format? Or I have to manually “Z” Attach to custom time format ？

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Solution ：

Reference resources ： https://stackoom.com/en/question/1Ay8W