repo_zf1/documentation/manual/en/module_specs/Zend_Validate-Set.xml

<?xml version="1.0" encoding="UTF-8"?>
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<sect1 id="zend.validate.set" xmlns:xi="http://www.w3.org/2001/XInclude">
    <title>Standard Validation Classes</title>

    <para>
        Zend Framework comes with a standard set of validation classes, which are ready for you to
        use.
    </para>

    <sect2 id="zend.validate.set.alnum">
        <title>Alnum</title>

        <para>
            Returns <constant>TRUE</constant> if and only if <varname>$value</varname> contains only
            alphabetic and digit characters. This validator includes an option to also consider
            white space characters as valid.
        </para>

        <note>
            <para>
                The alphabetic characters mean characters that makes up words in each language.
                However, the English alphabet is treated as the alphabetic characters in following
                languages: Chinese, Japanese, Korean. The language is specified by
                <classname>Zend_Locale</classname>.
            </para>
        </note>
    </sect2>

    <sect2 id="zend.validate.set.alpha">
        <title>Alpha</title>

        <para>
            Returns <constant>TRUE</constant> if and only if <varname>$value</varname> contains only
            alphabetic characters. This validator includes an option to also consider white space
            characters as valid.
        </para>
    </sect2>

    <xi:include href="Zend_Validate-Barcode.xml" />
    <xi:include href="Zend_Validate-Between.xml" />
    <xi:include href="Zend_Validate-Callback.xml" />
    <xi:include href="Zend_Validate-CreditCard.xml" />

    <sect2 id="zend.validate.set.ccnum">
        <title>Ccnum</title>

        <note>
            <para>
                The <classname>Ccnum</classname> validator has been deprecated in favor of the
                <classname>CreditCard</classname> validator. For security reasons you should use
                CreditCard instead of Ccnum.
            </para>
        </note>
    </sect2>

    <sect2 id="zend.validate.set.date">
        <title>Date</title>

        <para>
            Returns <constant>TRUE</constant> if <varname>$value</varname> is a valid date of the
            format 'YYYY-MM-DD'. If the optional <property>locale</property> option is set then the
            date will be validated according to the set locale. And if the optional
            <property>format</property> option is set this format is used for the validation. for
            details about the optional parameters see <link
                linkend="zend.date.others.comparison.table">Zend_Date::isDate()</link>.
        </para>
    </sect2>

    <xi:include href="Zend_Validate-Db.xml" />

    <sect2 id="zend.validate.set.digits">
        <title>Digits</title>

        <para>
            Returns <constant>TRUE</constant> if and only if <varname>$value</varname> only contains
            digit characters.
        </para>
    </sect2>

    <xi:include href="Zend_Validate-EmailAddress.xml" />

    <sect2 id="zend.validate.set.float">
        <title>Float</title>

        <para>
            Returns <constant>TRUE</constant> if and only if <varname>$value</varname> is a
            floating-point value. Since Zend Framework 1.8 this validator takes into account the
            actual locale from browser, environment or application wide set locale. You can of
            course use the get/setLocale accessors to change the used locale or give it while
            creating a instance of this validator.
        </para>
    </sect2>

    <xi:include href="Zend_Validate-GreaterThan.xml" />
    <xi:include href="Zend_Validate-Hex.xml" />
    <xi:include href="Zend_Validate-Hostname.xml" />

    <sect2 id="zend.validate.set.iban">
        <title>Iban</title>

        <para>
            Returns <constant>TRUE</constant> if and only if <varname>$value</varname> contains a
            valid IBAN (International Bank Account Number). IBAN numbers are validated against the
            country where they are used and by a checksum.
        </para>

        <para>
            There are two ways to validate IBAN numbers. As first way you can give a locale which
            represents a country. Any given IBAN number will then be validated against this country.
        </para>

        <programlisting language="php"><![CDATA[
$validator = new Zend_Validate_Iban('de_AT');
$iban = 'AT611904300234573201';
if ($validator->isValid($iban)) {
    // IBAN appears to be valid
} else {
    // IBAN is invalid
    foreach ($validator->getMessages() as $message) {
        echo "$message\n";
    }
}
]]></programlisting>

        <para>
            This should be done when you want to validate IBAN numbers for a single countries. The
            simpler way of validation is not to give a locale like shown in the next example.
        </para>

        <programlisting language="php"><![CDATA[
$validator = new Zend_Validate_Iban();
$iban = 'AT611904300234573201';
if ($validator->isValid($iban)) {
    // IBAN appears to be valid
} else {
    // IBAN is invalid
}
]]></programlisting>

        <para>
            But this shows one big problem: When you have to accept only IBAN numbers from one
            single country, for example france, then IBAN numbers from other countries would also be
            valid. Therefor just remember: When you have to validate a IBAN number against a defined
            country you should give the locale. And when you accept all IBAN numbers regardless of
            any country omit the locale for simplicity.
        </para>
    </sect2>

    <xi:include href="Zend_Validate-Identical.xml" />
    <xi:include href="Zend_Validate-InArray.xml" />

    <sect2 id="zend.validate.set.int">
        <title>Int</title>

        <para>
            Returns <constant>TRUE</constant> if and only if <varname>$value</varname> is a valid
            integer. Since Zend Framework 1.8 this validator takes into account the actual locale
            from browser, environment or application wide set locale. You can of course use the
            get/setLocale accessors to change the used locale or give it while creating a instance
            of this validator.
        </para>
    </sect2>

    <xi:include href="Zend_Validate-Ip.xml" />
    <xi:include href="Zend_Validate-Isbn.xml" />
    <xi:include href="Zend_Validate-LessThan.xml" />
    <xi:include href="Zend_Validate-NotEmpty.xml" />
    <xi:include href="Zend_Validate-PostCode.xml" />

    <sect2 id="zend.validate.set.regex">
        <title>Regex</title>

        <para>
            Returns <constant>TRUE</constant> if and only if <varname>$value</varname> matches
            against a regular expression pattern.
        </para>
    </sect2>

    <xi:include href="Zend_Validate-Sitemap.xml" />

    <sect2 id="zend.validate.set.string_length">
        <title>StringLength</title>

        <para>
            Returns <constant>TRUE</constant> if and only if the string length of
            <varname>$value</varname> is at least a minimum and no greater than a maximum (when the
            max option is not <constant>NULL</constant>). The <methodname>setMin()</methodname>
            method throws an exception if the minimum length is set to a value greater than the set
            maximum length, and the <methodname>setMax()</methodname> method throws an exception if
            the maximum length is set to a value less than the set minimum length. This class
            supports UTF-8 and other character encodings, based on the current value of <ulink
                url="http://www.php.net/manual/en/ref.iconv.php#iconv.configuration">iconv.internal_encoding</ulink>.
            If you need a different encoding you can set it with the accessor methods getEncoding
            and setEncoding.
        </para>
    </sect2>
</sect1>
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