📄 php_ref_calendar.asp
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<td valign="top">Converts a Julian day count to a Gregorian date</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top"><a href="func_cal_jdtojewish.asp">jdtojewish()</a></td>
<td valign="top">Converts a Julian day count to a Jewish date</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top"><a href="func_cal_jdtojulian.asp">JDToJulian()</a></td>
<td valign="top">Converts a Julian day count to a Julian date</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top"><a href="func_cal_jdtounix.asp">jdtounix()</a></td>
<td valign="top">Converts a Julian day count to a Unix timestamp</td>
<td valign="top">4</td>
</tr>
<tr>
<td valign="top"><a href="func_cal_jewishtojd.asp">JewishToJD()</a></td>
<td valign="top">Converts a Jewish date to a Julian day count</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top"><a href="func_cal_juliantojd.asp">JulianToJD()</a></td>
<td valign="top">Converts a Julian date to a Julian day count</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top"><a href="func_cal_unixtojd.asp">unixtojd()</a></td>
<td valign="top">Converts a Unix timestamp to a Julian day count</td>
<td valign="top">4</td>
</tr>
</table>
<br />
<hr>
<h2>PHP Calendar Constants</h2>
<p><b>PHP</b>: indicates the earliest version of PHP that supports the
constant. </p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table5">
<tr>
<th width="45%" align="left">Constant</th>
<th width="50%" align="left">Description</th>
<th width="5%" align="left">PHP</th>
</tr>
<tr>
<td valign="top">CAL_GREGORIAN</td>
<td valign="top">Gregorian calendar</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_JULIAN</td>
<td valign="top">Julian calendar</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_JEWISH</td>
<td valign="top">Jewish calendar</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_FRENCH</td>
<td valign="top">French Republican calendar</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_NUM_CALS</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_DOW_DAYNO</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_DOW_SHORT</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_DOW_LONG</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_MONTH_GREGORIAN_SHORT</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_MONTH_GREGORIAN_LONG</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_MONTH_JULIAN_SHORT</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_MONTH_JULIAN_LONG</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_MONTH_JEWISH</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_MONTH_FRENCH</td>
<td valign="top"> </td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top">CAL_EASTER_DEFAULT</td>
<td valign="top"> </td>
<td valign="top">4</td>
</tr>
<tr>
<td valign="top">CAL_EASTER_DEFAULT</td>
<td valign="top"> </td>
<td valign="top">4</td>
</tr>
<tr>
<td valign="top">CAL_EASTER_ROMAN</td>
<td valign="top"> </td>
<td valign="top">4</td>
</tr>
<tr>
<td valign="top">CAL_EASTER_ALWAYS_GREGORIAN</td>
<td valign="top"> </td>
<td valign="top">4</td>
</tr>
<tr>
<td valign="top">CAL_EASTER_ALWAYS_JULIAN</td>
<td valign="top"> </td>
<td valign="top">4</td>
</tr>
<tr>
<td valign="top">CAL_JEWISH_ADD_ALAFIM_GERESH</td>
<td valign="top"> </td>
<td valign="top">5</td>
</tr>
<tr>
<td valign="top">CAL_JEWISH_ADD_ALAFIM</td>
<td valign="top"> </td>
<td valign="top">5</td>
</tr>
<tr>
<td valign="top">CAL_JEWISH_ADD_GERESHAYIM</td>
<td valign="top"> </td>
<td valign="top">5</td>
</tr>
</table>
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