Paradox 函数
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px_timestamp2string

(PECL paradox >= 1.4.0)

px_timestamp2string Converts the timestamp into a string.

说明

string px_timestamp2string ( resource $pxdoc , float $value , string $format )

Turns a timestamp as it stored in the paradox file into human readable format. Paradox timestamps are the number of milliseconds since 1.1.0000. This function is just for convenience. It can be easily replaced by some math and the calendar functions as demonstrated in the following example.

参数

pxdoc

Resource identifier of the paradox database.

value

Value as stored in paradox database field of type PX_FIELD_TIME, or PX_FIELD_TIMESTAMP.

format

String format similar to the format used by date(). The placeholders support by this function is a subset of those supported by date() (Y, y, m, n, d, j, H, h, G, g, i, s, A, a, L).

返回值

如果成功则返回 TRUE,失败则返回 FALSE

范例

Example #1 Turn a paradox timestamp into a human readable form

<?php
$px 
px_new();

/* make up a date as it could be stored in */
/* a date field of a paradox db. */
/* 700000 days since 1.1.0000. */
$days 700000;

/* Use the calendar functions to print a */
/* human readable format of the date */
echo jdtogregorian($days+1721425)."\n";

/* Turn it into a timestamp as it stored in a paradox database */
/* Timestamps are stored in milli seconds since 1.1.0000 */
$stamp $days 86400.0 1000.0;
/* Add one hour */
$stamp += 3600000.0;
/* The following will output '7/15/1917 01:00:00'. */
echo px_timestamp2string($px$stamp"n/d/Y H:i:s")."\n";

px_delete($px);
?>

上例将输出:

7/15/1917
7/15/1917 01:00:00

The Julian day count as passed to jdtogregorian() has a different base of 1.1.4714 b.c. and must therefore be calculated by adding 1721425 to the day count used in the paradox file. Turning the day count into a timestamp is easily done by multiplying with 86400000.0 to obtain milli seconds.

参见


Paradox 函数
php 手册 | 脚本学堂 | 脚本编程 | 网站编程 | 系统管理 | 服务器配置 | 数据库管理 | Php教程 | python教程 | 正则表达式 | 批处理脚本 | Centos教程 | Linux基础教程