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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>Crée un nouvel objet avec l'horodatage modifié</refpurpose>

</refnamediv>

<refsect1 role="description">

&reftitle.description;

<methodsynopsis role="DateTimeImmutable">

<modifier role="attribute">#[\NoDiscard]</modifier>

<modifier>public</modifier> <type>DateTimeImmutable</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 <classname>DateTimeImmutable</classname> en cas de succès.

&return.falseforfailure.style.procedural;

</para>

</refsect1>

<refsect1 role="errors">

&reftitle.errors;

<para>

Si une chaîne de date ou de temps invalide est fournie, une

<exceptionname>DateMalformedStringException</exceptionname> est lancée.

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>

<methodname>DateTimeImmutable::modify</methodname> lance désormais

<exceptionname>DateMalformedStringException</exceptionname> si une

chaîne invalide est fournie. Auparavant, il retournait &false;,

et un avertissement était émis.

</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>

&example.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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