IntlDateFormatter::setTimeZoneId
grapheme_extract
intl
PHP Manual

# intl Functions

## Table of Contents

- grapheme_extract — Function to extract a sequence of default grapheme clusters from a text buffer, which must be encoded in UTF-8.
- grapheme_stripos — Find position (in grapheme units) of first occurrence of a case-insensitive string
- grapheme_stristr — Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack.
- grapheme_strlen — Get string length in grapheme units
- grapheme_strpos — Find position (in grapheme units) of first occurrence of a string
- grapheme_strripos — Find position (in grapheme units) of last occurrence of a case-insensitive string
- grapheme_strrpos — Find position (in grapheme units) of last occurrence of a string
- grapheme_strstr — Returns part of haystack string from the first occurrence of needle to the end of haystack.
- grapheme_substr — Return part of a string
- intl_error_name — Get symbolic name for a given error code
- intl_get_error_code — Get the last error code
- intl_get_error_message — Get description of the last error
- intl_is_failure — Check whether the given error code indicates failure

IntlDateFormatter::setTimeZoneId
grapheme_extract
intl
PHP Manual