ctype-alnum.xml

<?xml version="1.0" encoding="UTF-8"?>
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<!-- splitted from ./it/functions/ctype.xml, last change in rev 1.1 -->
<refentry xml:id="function.ctype-alnum" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>ctype_alnum</refname>
  <refpurpose>Controlla i caratteri alfanumerici</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>ctype_alnum</methodname>
   <methodparam><type>mixed</type><parameter>text</parameter></methodparam>
  </methodsynopsis>
  <para>
   Controlla che tutti i caratteri della <type>string</type> <parameter>text</parameter> fornita,
   siano alfanumerici.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>text</parameter></term>
     <listitem>
      <para>
       La stringa da testare.
       &note.ctype.parameter.integer;
       &note.ctype.parameter.non-string;
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues"> 
  &reftitle.returnvalues;
  <para>
   Restituisce &true; se ogni carattere in <parameter>text</parameter> è o
   una lettera o una cifra, &false; in caso contrario.
   &ctype.result.empty-string;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Un esempio di <function>ctype_alnum</function> (usando il locale di default)</title>
    <programlisting role="php">
<![CDATA[
<?php
$strings = array('AbCd1zyZ9', 'foo!#$bar');
foreach ($strings as $testcase) {
    if (ctype_alnum($testcase)) {
        echo "The string $testcase consists of all letters or digits.\n";
    } else {
        echo "The string $testcase does not consist of all letters or digits.\n";
    }
}
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
The string AbCd1zyZ9 consists of all letters or digits.
The string foo!#$bar does not consist of all letters or digits.
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>ctype_alpha</function></member>
    <member><function>ctype_digit</function></member>
    <member><function>setlocale</function></member>
    <member><function>IntlChar::isalnum</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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