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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<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>count</parameter></methodparam>
<methodparam><type>mixed</type><parameter>value</parameter></methodparam>
</methodsynopsis>
<para>
Fills an array with
<parameter>count</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 prior to PHP 8.0.0;
as of PHP 8.0.0, negative keys are incremented normally
(see <link linkend="function.array-fill.example.negative-start-index">example</link>).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>count</parameter></term>
<listitem>
<para>
Number of elements to insert.
Must be greater than or equal to zero, and less than or equal to <literal>2147483647</literal>.
</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 <classname>ValueError</classname> if <parameter>count</parameter> is
out of range.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.0.0</entry>
<entry>
<function>array_fill</function> now throws a <classname>ValueError</classname>
if <parameter>count</parameter> is out of range; previously <constant>E_WARNING</constant>
was raised, and the function returned &false;.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</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
$a = array_fill(5, 6, 'banana');
print_r($a);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Array
(
[5] => banana
[6] => banana
[7] => banana
[8] => banana
[9] => banana
[10] => banana
)
]]>
</screen>
</example>
</para>
<para>
<example xml:id="function.array-fill.example.negative-start-index">
<title><function>array_fill</function> example with a negative start index</title>
<programlisting role="php">
<![CDATA[
<?php
$a = array_fill(-2, 4, 'pear');
print_r($a);
?>
]]>
</programlisting>
&example.outputs.7;
<screen>
<![CDATA[
Array
(
[-2] => pear
[0] => pear
[1] => pear
[2] => pear
)
]]>
</screen>
&example.outputs.8;
<screen>
<![CDATA[
Array
(
[-2] => pear
[-1] => pear
[0] => pear
[1] => pear
)
]]>
</screen>
</example>
</para>
<para>
Note that index <literal>-1</literal> is not present prior to PHP 8.0.0.
</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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