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<refentry xml:id="splfileobject.fputcsv" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>SplFileObject::fputcsv</refname>
  <refpurpose>Write a field array as a CSV line</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="SplFileObject">
   <modifier>public</modifier> <type class="union"><type>int</type><type>false</type></type><methodname>SplFileObject::fputcsv</methodname>
   <methodparam><type>array</type><parameter>fields</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>separator</parameter><initializer>","</initializer></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>enclosure</parameter><initializer>"\""</initializer></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>escape</parameter><initializer>"\\"</initializer></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>eol</parameter><initializer>"\n"</initializer></methodparam>
  </methodsynopsis>
  <para>
   Writes the <parameter>fields</parameter> array to the file as a CSV line.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>fields</parameter></term>
    <listitem>
     <para>
      An array of values.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>separator</parameter></term>
    <listitem>
     <para>
      The optional <parameter>separator</parameter> parameter sets the field
      delimiter (one single-byte character only).
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>enclosure</parameter></term>
    <listitem>
     <para>
      The optional <parameter>enclosure</parameter> parameter sets the field
       enclosure (one single-byte character only).
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>escape</parameter></term>
    <listitem>
     <para>
      The optional <parameter>escape</parameter> parameter sets the
      escape character (at most one single-byte character).
      An empty string (<literal>""</literal>) disables the proprietary escape mechanism.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>eol</parameter></term>
    <listitem>
     <para>
      The optional <parameter>eol</parameter> parameter sets
      a custom End of Line sequence.
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
  <note>
   <para>
    If an <parameter>enclosure</parameter> character is contained in a field,
    it will be escaped by doubling it, unless it is immediately preceded by an
    <parameter>escape</parameter>.
   </para>
  </note> 
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the length of the written string&return.falseforfailure;.
  </para>
  <para>
   Returns &false;, and does not write the CSV line to the file, if the
   <parameter>separator</parameter> or <parameter>enclosure</parameter>
   parameter is not a single character.
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   An <constant>E_WARNING</constant> level error is issued if the
   <parameter>separator</parameter> or <parameter>enclosure</parameter>
   parameter is not a single character.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <para>
   <informaltable>
    <tgroup cols="2">
     <thead>
      <row>
       <entry>&Version;</entry>
       <entry>&Description;</entry>
      </row>
     </thead>
     <tbody>
      <row>
       <entry>8.1.0</entry>
       <entry>
        The optional <parameter>eol</parameter> parameter has been added.
       </entry>
      </row>
      <row>
       <entry>7.4.0</entry>
       <entry>
        The <parameter>escape</parameter> parameter now also accepts an empty
        string to disable the proprietary escape mechanism.
       </entry>
      </row>
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example xml:id="splfileobject.fputcsv.examples.basic">
    <title><methodname>SplFileObject::fputcsv</methodname> example</title>
    <programlisting role="php">
<![CDATA[
<?php

$list = array (
    array('aaa', 'bbb', 'ccc', 'dddd'),
    array('123', '456', '789'),
    array('"aaa"', '"bbb"')
);

$file = new SplFileObject('file.csv', 'w');

foreach ($list as $fields) {
    $file->fputcsv($fields);
}

?>
]]>
    </programlisting>
    <para>The above example will write the following to <literal>file.csv</literal>:</para>
    <screen>
<![CDATA[
aaa,bbb,ccc,dddd
123,456,789
"""aaa""","""bbb"""

]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>fputcsv</function></member>
    <member><methodname>SplFileObject::fgetcsv</methodname></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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