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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Converts the timestamp into a string</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.px-timestamp2string" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">px_timestamp2string</h1>
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<p class="verinfo">(PECL paradox >= 1.4.0)</p><p class="refpurpose"><span class="refname">px_timestamp2string</span> — <span class="dc-title">
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Converts the timestamp into a string
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.px-timestamp2string-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>px_timestamp2string</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$pxdoc</code></span>
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, <span class="methodparam"><span class="type">float</span> <code class="parameter">$value</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$format</code></span>
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) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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Turns a timestamp as it stored in the paradox file into human readable
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format. Paradox timestamps are the number of miliseconds since 0001-01-02.
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This function is just for convenience. It can be easily replaced by some
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math and the calendar functions as demonstrated in the following example.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.px-timestamp2string-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">pxdoc</code></dt>
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<dd>
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<p class="para">
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Resource identifier of the paradox database.
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</p>
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</dd>
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<dt>
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<code class="parameter">value</code></dt>
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<dd>
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<p class="para">
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Value as stored in paradox database field of type
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PX_FIELD_TIME, or PX_FIELD_TIMESTAMP.
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</p>
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</dd>
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<dt>
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<code class="parameter">format</code></dt>
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<dd>
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<p class="para">
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String format similar to the format used by <span class="function"><a href="date.html" class="function">date()</a></span>.
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The placeholders support by this function is a subset of those
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supported by <span class="function"><a href="date.html" class="function">date()</a></span> (Y, y, m, n, d, j, H, h, G, g,
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i, s, A, a, L).
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.px-timestamp2string-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.px-timestamp2string-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-2470">
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<p><strong>Example #1 Turn a paradox timestamp into a human readable form</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$px </span><span style="color: #007700">= </span><span style="color: #0000BB">px_new</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/* make up a date as it could be stored in */<br />/* a date field of a paradox db. */<br />/* 700000 days since 1.1.0000. */<br /></span><span style="color: #0000BB">$days </span><span style="color: #007700">= </span><span style="color: #0000BB">700000</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Use the calendar functions to print a */<br />/* human readable format of the date */<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">jdtogregorian</span><span style="color: #007700">(</span><span style="color: #0000BB">$days</span><span style="color: #007700">+</span><span style="color: #0000BB">1721425</span><span style="color: #007700">).</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Turn it into a timestamp as it stored in a paradox database */<br />/* Timestamps are stored in miliseconds since 0001-01-02 */<br /></span><span style="color: #0000BB">$stamp </span><span style="color: #007700">= </span><span style="color: #0000BB">$days </span><span style="color: #007700">* </span><span style="color: #0000BB">86400.0 </span><span style="color: #007700">* </span><span style="color: #0000BB">1000.0</span><span style="color: #007700">;<br /></span><span style="color: #FF8000">/* Add one hour */<br /></span><span style="color: #0000BB">$stamp </span><span style="color: #007700">+= </span><span style="color: #0000BB">3600000.0</span><span style="color: #007700">;<br /></span><span style="color: #FF8000">/* The following will output '7/15/1917 01:00:00'. */<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">px_timestamp2string</span><span style="color: #007700">(</span><span style="color: #0000BB">$px</span><span style="color: #007700">, </span><span style="color: #0000BB">$stamp</span><span style="color: #007700">, </span><span style="color: #DD0000">"n/d/Y H:i:s"</span><span style="color: #007700">).</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">px_delete</span><span style="color: #007700">(</span><span style="color: #0000BB">$px</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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7/15/1917
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7/15/1917 01:00:00
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</pre></div>
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</div>
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</div>
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</p>
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<p class="para">
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The Julian day count as passed to <span class="function"><a href="jdtogregorian.html" class="function">jdtogregorian()</a></span>
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has a different base of 1.1.4714 b.c. and must therefore be calculated
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by adding 1721425 to the day count used in the paradox file. Turning the
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day count into a timestamp is easily done by multiplying with 86400000.0
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to obtain miliseconds.
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.px-timestamp2string-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="px_date2string.html" class="function" rel="rdfs-seeAlso">px_date2string()</a> - Converts a date into a string</span></li>
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<li class="member"><span class="function"><a href="jdtogregorian.html" class="function" rel="rdfs-seeAlso">jdtogregorian()</a> - 转变一个Julian Day计数为Gregorian历法日期</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html>
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