IntlDateFormatter::localtime()

datefmt_localtime

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)

Parse string to a field-based time value

说明

Converts string $value to a field-based time value(an array of various fields), starting at$parse_pos and consuming as much of the input value as possible.

参数

The formatter resource

string to convert to a time

Position at which to start the parsing in $value(zero-based). If no error occurs before $value is consumed,$parse_pos will contain -1 otherwise it will contain the position at which parsing ended . If $parse_pos > strlen($value), the parse fails immediately.

返回值

Localtime compatible array of integers : contains 24 hour clock value in tm_hour field

范例

datefmt_localtime() example

OO example

以上例程会输出：

First parsed output is tm_sec : 0 , tm_min : 0 , tm_hour : 16 , tm_year : 1969 , 
tm_mday : 31 , tm_wday : 4 , tm_yday : 365 , tm_mon : 11 , tm_isdst : 0 , 

参见

• datefmt_create() Create a date formatter
• datefmt_format() Format the date/time value as a string
• datefmt_parse() Parse string to a timestamp value
• datefmt_get_error_code() Get the error code from last operation
• datefmt_get_error_message() Get the error text from the last operation

Learning lesson here: Never trust the PHP documentation. Test everything!
$position does not work as described, at least in PHP 7. After parsing without errors, it does not contain -1.
You can still use it to set the parsing start character position, but not necessarily whether any errors occurred.
To test for errors, replace my $nPosition test code in the other note with: 

You can use datefmt_localtime to convert a user's time string, input using their locale's script, into standard numbers for checking, using a simple HTML input element.
This avoids using clunky HTML select elements formatted with hour and minute options in the locale's script to capture user input. 

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