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<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="datetimeimmutable.modify" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>DateTimeImmutable::modify</refname>
<refpurpose>Créée un nouvel objet avec l'horodatage modifié</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis role="DateTimeImmutable">
<modifier>public</modifier> <type class="union"><type>DateTimeImmutable</type><type>false</type></type><methodname>DateTimeImmutable::modify</methodname>
<methodparam><type>string</type><parameter>modifier</parameter></methodparam>
</methodsynopsis>
<para>
Crée un nouvel objet <type>DateTimeImmutable</type> avec l'horodatage modifié.
L'objet original ne sera pas modifié.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>modifier</parameter></term>
<listitem>
<para>&date.formats.parameter;</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Retourne un novel objet DateTimeImmutable modifié&return.falseforfailure;.
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
Si une chaîne de date ou de temps invalide est fournie, une
<exceptionname>DateMalformedStringException</exceptionname> est lancé.
Antérieur à PHP 8.3, ceci était un avertissement.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.3.0</entry>
<entry>
Lance désormais une
<exceptionname>DateMalformedStringException</exceptionname> si une
chaîne invalide est fourni, au lieu d'un avertissement.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title>Exemple de <function>DateTimeImmutable::modify</function></title>
<para>&style.oop;</para>
<programlisting role="php">
<![CDATA[
<?php
$date = new DateTimeImmutable('2006-12-12');
$newDate = $date->modify('+1 day');
echo $newDate->format('Y-m-d');
?>
]]>
</programlisting>
&examples.outputs;
<screen>
<![CDATA[
2006-12-13
]]>
</screen>
</example>
<example>
<title>Faire attention lors de l'ajout ou soustraction de mois</title>
<programlisting role="php">
<![CDATA[
<?php
$date = new DateTimeImmutable('2000-12-31');
$newDate1 = $date->modify('+1 month');
echo $newDate1->format('Y-m-d') . "\n";
$newDate2 = $newDate1->modify('+1 month');
echo $newDate2->format('Y-m-d') . "\n";
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
2001-01-31
2001-03-03
]]>
</screen>
</example>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><function>DateTimeImmutable::add</function></member>
<member><function>DateTimeImmutable::sub</function></member>
<member><function>DateTimeImmutable::setDate</function></member>
<member><function>DateTimeImmutable::setISODate</function></member>
<member><function>DateTimeImmutable::setTime</function></member>
<member><function>DateTimeImmutable::setTimestamp</function></member>
</simplelist>
</refsect1>
</refentry>
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