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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<!-- Generated by xml_proto.php v2.2. Found in /scripts directory of phpdoc. -->
<refentry xml:id="function.px-timestamp2string" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>px_timestamp2string</refname>
<refpurpose>
Converts the timestamp into a string.
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>px_timestamp2string</methodname>
<methodparam><type>resource</type><parameter>pxdoc</parameter></methodparam>
<methodparam><type>float</type><parameter>value</parameter></methodparam>
<methodparam><type>string</type><parameter>format</parameter></methodparam>
</methodsynopsis>
<para>
Turns a timestamp as it stored in the paradox file into human readable
format. Paradox timestamps are the number of miliseconds since 0001-01-02.
This function is just for convenience. It can be easily replaced by some
math and the calendar functions as demonstrated in the following example.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>pxdoc</parameter></term>
<listitem>
<para>
Resource identifier of the paradox database.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>value</parameter></term>
<listitem>
<para>
Value as stored in paradox database field of type
PX_FIELD_TIME, or PX_FIELD_TIMESTAMP.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>format</parameter></term>
<listitem>
<para>
String format similar to the format used by <function>date</function>.
The placeholders support by this function is a subset of those
supported by <function>date</function> (Y, y, m, n, d, j, H, h, G, g,
i, s, A, a, L).
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<!-- Use when ERRORS exist
<refsect1 role="errors">
&reftitle.errors;
<para>
When does this function throw E_* level errors, or exceptions?
</para>
</refsect1>
-->
<!-- Use when a CHANGELOG exists
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description</entry>
</row>
</thead>
<tbody>
<row>
<entry>Enter the PHP version of change here
<entry>Description of change
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
-->
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Turn a paradox timestamp into a human readable form</title>
<programlisting role="php">
<![CDATA[
<?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 miliseconds since 0001-01-02 */
$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);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
7/15/1917
7/15/1917 01:00:00
]]>
</screen>
</example>
</para>
<para>
The Julian day count as passed to <function>jdtogregorian</function>
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 miliseconds.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>px_date2string</function></member>
<member><function>jdtogregorian</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
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