php-doc-en/reference/array/functions/array-fill.xml

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<refentry xml:id="function.array-fill" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>array_fill</refname>
  <refpurpose>Fill an array with values</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>array</type><methodname>array_fill</methodname>
   <methodparam><type>int</type><parameter>start_index</parameter></methodparam>
   <methodparam><type>int</type><parameter>num</parameter></methodparam>
   <methodparam><type>mixed</type><parameter>value</parameter></methodparam>
  </methodsynopsis>
  <para>
   Fills an array with
   <parameter>num</parameter> entries of the value of the
   <parameter>value</parameter> parameter, keys starting at the
   <parameter>start_index</parameter> parameter.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>

    <varlistentry>
     <term><parameter>start_index</parameter></term>
     <listitem>
      <para>
       The first index of the returned array.
      </para>
      <para>
       If <parameter>start_index</parameter> is negative, 
       the first index of the returned array will be 
       <parameter>start_index</parameter> and the following 
       indices will start from zero 
       (see <link linkend="function.array-fill.example.basic">example</link>).
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term><parameter>num</parameter></term>
     <listitem>
      <para>
       Number of elements to insert.
       Must be greater than or equal to zero.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term><parameter>value</parameter></term>
     <listitem>
      <para>
       Value to use for filling
      </para>
     </listitem>
    </varlistentry>

   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the filled array
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   Throws a <constant>E_WARNING</constant> if <parameter>num</parameter> is
   less than zero.
  </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>5.6.0</entry>
       <entry>
        <parameter>num</parameter> may now be zero. Previously,
        <parameter>num</parameter> was required to be greater than zero.
       </entry>
      </row>
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example xml:id="function.array-fill.example.basic">
    <title><function>array_fill</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$a = array_fill(5, 6, 'banana');
$b = array_fill(-2, 4, 'pear');
print_r($a);
print_r($b);
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
Array
(
    [5]  => banana
    [6]  => banana
    [7]  => banana
    [8]  => banana
    [9]  => banana
    [10] => banana
)
Array
(
    [-2] => pear
    [0] => pear
    [1] => pear
    [2] => pear
)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  <para>
   See also the <link linkend="language.types.array">Arrays</link> 
   section of manual for a detailed explanation of negative keys.
  </para>
 </refsect1>
 
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>array_fill_keys</function></member>
    <member><function>str_repeat</function></member>
    <member><function>range</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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