<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Format a local time/date as integer</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.gmstrftime.html">gmstrftime</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.localtime.html">localtime</a></div> <div class="up"><a href="ref.datetime.html">Date/Time Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.idate" class="refentry"> <div class="refnamediv"> <h1 class="refname">idate</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">idate</span> — <span class="dc-title">Format a local time/date as integer</span></p> </div> <div class="refsect1 description" id="refsect1-function.idate-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><strong>idate</strong></span> ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$format</code></span> [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$timestamp</code><span class="initializer"> = time()</span></span> ] )</div> <p class="para rdfs-comment"> Returns a number formatted according to the given format string using the given integer <em><code class="parameter">timestamp</code></em> or the current local time if no timestamp is given. In other words, <em><code class="parameter">timestamp</code></em> is optional and defaults to the value of <span class="function"><a href="function.time.html" class="function">time()</a></span>. </p> <p class="para"> Unlike the function <span class="function"><a href="function.date.html" class="function">date()</a></span>, <span class="function"><strong>idate()</strong></span> accepts just one char in the <em><code class="parameter">format</code></em> parameter. </p> </div> <div class="refsect1 parameters" id="refsect1-function.idate-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">format</code></em></span> <dd> <p class="para"> <table class="doctable table"> <caption><strong>The following characters are recognized in the <em><code class="parameter">format</code></em> parameter string</strong></caption> <thead> <tr> <th><em><code class="parameter">format</code></em> character</th> <th>Description</th> </tr> </thead> <tbody class="tbody"> <tr> <td><em>B</em></td> <td>Swatch Beat/Internet Time</td> </tr> <tr> <td><em>d</em></td> <td>Day of the month</td> </tr> <tr> <td><em>h</em></td> <td>Hour (12 hour format)</td> </tr> <tr> <td><em>H</em></td> <td>Hour (24 hour format)</td> </tr> <tr> <td><em>i</em></td> <td>Minutes</td> </tr> <tr> <td><em>I</em> (uppercase i)</td> <td>returns <em>1</em> if DST is activated, <em>0</em> otherwise</td> </tr> <tr> <td><em>L</em> (uppercase l)</td> <td>returns <em>1</em> for leap year, <em>0</em> otherwise</td> </tr> <tr> <td><em>m</em></td> <td>Month number</td> </tr> <tr> <td><em>s</em></td> <td>Seconds</td> </tr> <tr> <td><em>t</em></td> <td>Days in current month</td> </tr> <tr> <td><em>U</em></td> <td>Seconds since the Unix Epoch - January 1 1970 00:00:00 UTC - this is the same as <span class="function"><a href="function.time.html" class="function">time()</a></span></td> </tr> <tr> <td><em>w</em></td> <td>Day of the week (<em>0</em> on Sunday)</td> </tr> <tr> <td><em>W</em></td> <td>ISO-8601 week number of year, weeks starting on Monday</td> </tr> <tr> <td><em>y</em></td> <td>Year (1 or 2 digits - check note below)</td> </tr> <tr> <td><em>Y</em></td> <td>Year (4 digits)</td> </tr> <tr> <td><em>z</em></td> <td>Day of the year</td> </tr> <tr> <td><em>Z</em></td> <td>Timezone offset in seconds</td> </tr> </tbody> </table> </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">timestamp</code></em></span><dd> <p class="para"> The optional <em><code class="parameter">timestamp</code></em> parameter is an <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span> Unix timestamp that defaults to the current local time if a <em><code class="parameter">timestamp</code></em> is not given. In other words, it defaults to the value of <span class="function"><a href="function.time.html" class="function">time()</a></span>. </p></dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.idate-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns an <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>. </p> <p class="para"> As <span class="function"><strong>idate()</strong></span> always returns an <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span> and as they can't start with a "0", <span class="function"><strong>idate()</strong></span> may return fewer digits than you would expect. See the example below. </p> </div> <div class="refsect1 errors" id="refsect1-function.idate-errors"> <h3 class="title">Errors/Exceptions</h3> <p class="para"> Every call to a date/time function will generate a <strong><code>E_NOTICE</code></strong> if the time zone is not valid, and/or a <strong><code>E_STRICT</code></strong> or <strong><code>E_WARNING</code></strong> message if using the system settings or the <var class="varname"><var class="varname">TZ</var></var> environment variable. See also <span class="function"><a href="function.date-default-timezone-set.html" class="function">date_default_timezone_set()</a></span></p> </div> <div class="refsect1 changelog" id="refsect1-function.idate-changelog"> <h3 class="title">Changelog</h3> <p class="para"> <table class="doctable informaltable"> <thead> <tr> <th>Version</th> <th>Description</th> </tr> </thead> <tbody class="tbody"> <tr><td>5.1.0</td><td><p class="para"> Now issues the <strong><code>E_STRICT</code></strong> and <strong><code>E_NOTICE</code></strong> time zone errors.</p></td></tr> </tbody> </table> </p> </div> <div class="refsect1 examples" id="refsect1-function.idate-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-2310"> <p><strong>Example #1 <span class="function"><strong>idate()</strong></span> example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$timestamp </span><span style="color: #007700">= </span><span style="color: #0000BB">strtotime</span><span style="color: #007700">(</span><span style="color: #DD0000">'1st January 2004'</span><span style="color: #007700">); </span><span style="color: #FF8000">//1072915200<br /><br />// this prints the year in a two digit format<br />// however, as this would start with a "0", it<br />// only prints "4"<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">idate</span><span style="color: #007700">(</span><span style="color: #DD0000">'y'</span><span style="color: #007700">, </span><span style="color: #0000BB">$timestamp</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.idate-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.date.html" class="function" rel="rdfs-seeAlso">date()</a> - Format a local time/date</span></li> <li class="member"> <span class="function"><a href="function.getdate.html" class="function" rel="rdfs-seeAlso">getdate()</a> - Get date/time information</span></li> <li class="member"> <span class="function"><a href="function.time.html" class="function" rel="rdfs-seeAlso">time()</a> - Return current Unix timestamp</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.gmstrftime.html">gmstrftime</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.localtime.html">localtime</a></div> <div class="up"><a href="ref.datetime.html">Date/Time Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>