How do I convert datetime to ISO 8601 in PHP

How do I convert datetime to ISO 8601 in PHP

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PHP Regex to check date is in YYYY-MM-DD format

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PHP Timestamp into DateTime

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How to display a date as iso 8601 format with PHP

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Convert ISO 8601 to unixtimestamp

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How do I store an UTC ISO8601 date in a MySQL database?

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Google Sitemap Date Format

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PHP date format, remove time and more [duplicate]

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Laravel 5.1 date_format validation allow two formats

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date_default_timezone_set("Europe/London") does not return correct time

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PHP strtotime returns a 1970 date when date column is null

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Get date format like "Y-m-d H:i:s" from a php date

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How do I convert an ISO8601 date to another format in PHP?

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How do I remove 3 months from a date?

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