php教程

IntlDateFormatter::parse

datefmt_parse

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

IntlDateFormatter::parse -- datefmt_parseParse string to a timestamp value

说明

面向对象风格

public IntlDateFormatter::parse ( string $value [, int &$position ] ) : int

过程化风格

datefmt_parse ( IntlDateFormatter $fmt , string $value [, int &$position ] ) : int

Converts string $value to an incremental time value, starting at $parse_pos and consuming as much of the input value as possible.

参数

fmt

The formatter resource

value

string to convert to a time

position

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 (and the error occurred). This variable will contain the end position if the parse fails. If $parse_pos > strlen($value), the parse fails immediately.

返回值

timestamp parsed value, or FALSE if value can't be parsed.

范例

Example #1 OO example

<?php
$fmt 
= new IntlDateFormatter(
    
'en_US',
    
IntlDateFormatter::FULL,
    
IntlDateFormatter::FULL,
    
'America/Los_Angeles',
    
IntlDateFormatter::GREGORIAN
);
echo 
'First parsed output is ' $fmt->parse('Wednesday, December 20, 1989 4:00:00 PM PT');
$fmt = new IntlDateFormatter(
    
'de-DE',
    
IntlDateFormatter::FULL,
    
IntlDateFormatter::FULL,
    
'America/Los_Angeles',
    
IntlDateFormatter::GREGORIAN
);
?>

Example #2 datefmt_parse() example

<?php
$fmt 
datefmt_create(
    
'en_US',
    
IntlDateFormatter::FULL,
    
IntlDateFormatter::FULL,
    
'America/Los_Angeles',
    
IntlDateFormatter::GREGORIAN
);
echo 
'First parsed output is ' datefmt_parse($fmt'Wednesday, December 20, 1989 4:00:00 PM PT');
$fmt datefmt_create(
    
'de-DE',
    
IntlDateFormatter::FULL,
    
IntlDateFormatter::FULL,
    
'America/Los_Angeles',
    
IntlDateFormatter::GREGORIAN
);
echo 
'Second parsed output is ' datefmt_parse($fmt'Mittwoch, 20. Dezember 1989 16:00 Uhr GMT-08:00');
?

以上例程会输出:

First parsed output is 630201600
Second parsed output is 630201600

参见

User Contributed Notes

Anonymous 11-Jul-2018 11:44
Please note:
* on  a 32-bit system, parse() will return float if the value gets out of integer range
* while parse() parses fractional seconds with a format like 'yyyy-MM-dd HH:mm:ss.SSSSSS', it only returns an int. This is also true when the value is returned as float, msecs remain absent in the return value.

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