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<?xml version="1.0" encoding="UTF-8"?>
<!-- Reviewed: no -->
<sect2 id="zend.validate.set.date">
<title>Date</title>
<para>
<classname>Zend_Validate_Date</classname> allows you to validate if a given value contains
a date. This validator validates also localized input.
</para>
<sect3 id="zend.validate.set.date.options">
<title>Supported options for Zend_Validate_Date</title>
<para>
The following options are supported for <classname>Zend_Validate_Date</classname>:
</para>
<itemizedlist>
<listitem>
<para>
<emphasis><property>format</property></emphasis>: Sets the format which is used
to write the date.
</para>
</listitem>
<listitem>
<para>
<emphasis><property>locale</property></emphasis>: Sets the locale which will be
used to validate date values.
</para>
</listitem>
</itemizedlist>
</sect3>
<sect3 id="zend.validate.set.date.basic">
<title>Default date validation</title>
<para>
The easiest way to validate a date is by using the default date format. It is used when
no locale and no format has been given.
</para>
<programlisting language="php"><![CDATA[
$validator = new Zend_Validate_Date();
$validator->isValid('2000-10-10'); // returns true
$validator->isValid('10.10.2000'); // returns false
]]></programlisting>
<para>
The default date format for <classname>Zend_Validate_Date</classname> is 'yyyy-MM-dd'.
</para>
</sect3>
<sect3 id="zend.validate.set.date.localized">
<title>Localized date validation</title>
<para>
<classname>Zend_Validate_Date</classname> validates also dates which are given in a
localized format. By using the <property>locale</property> option you can define the
locale which the date format should use for validation.
</para>
<programlisting language="php"><![CDATA[
$validator = new Zend_Validate_Date(array('locale' => 'de'));
$validator->isValid('10.Feb.2010'); // returns true
$validator->isValid('10.May.2010'); // returns false
]]></programlisting>
<para>
The <property>locale</property> option sets the default date format. In the above
example this is 'dd.MM.yyyy' which is defined as default date format for 'de'.
</para>
</sect3>
<sect3 id="zend.validate.set.date.formats">
<title>Self defined date validation</title>
<para>
<classname>Zend_Validate_Date</classname> supports also self defined date formats.
When you want to validate such a date you can use the <property>format</property>
option.
</para>
<programlisting language="php"><![CDATA[
$validator = new Zend_Validate_Date(array('format' => 'yyyy'));
$validator->isValid('2010'); // returns true
$validator->isValid('May'); // returns false
]]></programlisting>
<para>
Of course you can combine <property>format</property> and <property>locale</property>.
In this case you can also use localized month or daynames.
</para>
<programlisting language="php"><![CDATA[
$validator = new Zend_Validate_Date(array('format' => 'yyyy MMMM', 'locale' => 'de'));
$validator->isValid('2010 Dezember'); // returns true
$validator->isValid('2010 June'); // returns false
]]></programlisting>
</sect3>
</sect2>
<!--
vim:se ts=4 sw=4 et:
-->
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