Converts the timestamp into a string.
( 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.
Resource identifier of the paradox database.
Value as stored in paradox database field of type
PX_FIELD_TIME, or PX_FIELD_TIMESTAMP.
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).
Returns TRUE on success or FALSE on failure.
Example 1. Turn a paradox timestamp into a human readable form
$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 */
/* 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";
The above example will output:
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.