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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.array-push" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>array_push</refname>
<refpurpose>Push one or more elements onto the end of array</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>array_push</methodname>
<methodparam><type>array</type><parameter role="reference">array</parameter></methodparam>
<methodparam rep="repeat"><type>mixed</type><parameter>values</parameter></methodparam>
</methodsynopsis>
<para>
<function>array_push</function> treats <parameter>array</parameter> as a
stack, and pushes the passed variables onto the end of
<parameter>array</parameter>. The length of <parameter>array</parameter>
increases by the number of variables pushed. Has the same effect as:
<programlisting role="php">
<![CDATA[
<?php
$array[] = $var;
?>
]]>
</programlisting>
repeated for each passed value.
</para>
<note>
<simpara>
If you use <function>array_push</function> to add one element to the
array, it's better to use <literal>$array[] = </literal> because in that
way there is no overhead of calling a function.
</simpara>
</note>
<note>
<simpara>
<function>array_push</function> will raise a warning if the first
argument is not an array. This differed from the
<literal>$var[]</literal> behaviour where a new array was created, prior to PHP 7.1.0.
</simpara>
</note>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>array</parameter></term>
<listitem>
<para>
The input array.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>values</parameter></term>
<listitem>
<para>
The values to push onto the end of the <parameter>array</parameter>.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the new number of elements in the array.
</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>7.3.0</entry>
<entry>
This function can now be called with only one parameter. Formerly, at
least two parameters have been required.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>array_push</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$stack = array("orange", "banana");
array_push($stack, "apple", "raspberry");
print_r($stack);
?>
]]>
</programlisting>
&example.outputs;
<screen role="php">
<![CDATA[
Array
(
[0] => orange
[1] => banana
[2] => apple
[3] => raspberry
)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>array_pop</function></member>
<member><function>array_shift</function></member>
<member><function>array_unshift</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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-->
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