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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.implode" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>implode</refname>
<refpurpose>Join array elements with a string</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>implode</methodname>
<methodparam><type>string</type><parameter>separator</parameter></methodparam>
<methodparam><type>array</type><parameter>array</parameter></methodparam>
</methodsynopsis>
<simpara>Alternative signature (not supported with named arguments):</simpara>
<methodsynopsis>
<type>string</type><methodname>implode</methodname>
<methodparam><type>array</type><parameter>array</parameter></methodparam>
</methodsynopsis>
<simpara>Legacy signature (deprecated as of PHP 7.4.0, removed as of PHP 8.0.0):</simpara>
<methodsynopsis>
<type>string</type><methodname>implode</methodname>
<methodparam><type>array</type><parameter>array</parameter></methodparam>
<methodparam><type>string</type><parameter>separator</parameter></methodparam>
</methodsynopsis>
<para>
Join array elements with a <parameter>separator</parameter> string.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>separator</parameter></term>
<listitem>
<para>
Optional. Defaults to an empty string.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>array</parameter></term>
<listitem>
<para>
The array of strings to implode.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns a string containing a string representation of all the array
elements in the same order, with the separator string between each element.
</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>
Passing the <parameter>separator</parameter> after the <parameter>array</parameter>
is no longer supported.
</entry>
</row>
<row>
<entry>7.4.0</entry>
<entry>
Passing the <parameter>separator</parameter> after the <parameter>array</parameter>
(i.e. using the legacy signature) has been deprecated.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1><!-- }}} -->
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>implode</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$array = ['lastname', 'email', 'phone'];
var_dump(implode(",", $array)); // string(20) "lastname,email,phone"
// Empty string when using an empty array:
var_dump(implode('hello', [])); // string(0) ""
// The separator is optional:
var_dump(implode(['a', 'b', 'c'])); // string(3) "abc"
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
¬e.bin-safe;
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>explode</function></member>
<member><function>preg_split</function></member>
<member><function>http_build_query</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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