2004-04-13 15:43:47 +00:00
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision$ -->
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2005-09-03 08:53:14 +00:00
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<!-- EN-Revision: 1.7 Maintainer: gerald Status: ready -->
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2004-05-23 15:44:59 +00:00
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<sect1 id="language.function.foreach">
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2005-05-26 18:10:32 +00:00
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<title>{foreach},{foreachelse}</title>
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<informaltable frame="all">
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<tgroup cols="5">
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<colspec colname="param" align="center" />
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<colspec colname="type" align="center" />
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<colspec colname="required" align="center" />
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<colspec colname="default" align="center" />
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<colspec colname="desc" />
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<thead>
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<row>
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<entry>Nom attribut</entry>
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<entry>Type</entry>
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<entry>Requis</entry>
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<entry>Defaut</entry>
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<entry>Description</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>from</entry>
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<entry>tableau</entry>
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<entry>oui</entry>
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<entry><emphasis>n/a</emphasis></entry>
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<entry>Le tableau <20> parcourir</entry>
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</row>
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<row>
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<entry>item</entry>
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<entry>cha<EFBFBD>ne de caract<63>re</entry>
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<entry>Oui</entry>
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<entry><emphasis>n/a</emphasis></entry>
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<entry>Le nom de la variable "<22>l<EFBFBD>ment courant"</entry>
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</row>
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<row>
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<entry>key</entry>
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<entry>cha<EFBFBD>ne de caract<63>re</entry>
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<entry>Non</entry>
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<entry><emphasis>n/a</emphasis></entry>
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<entry>Le nom de la variable repr<70>sentant la clef courante.</entry>
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</row>
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<row>
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<entry>name</entry>
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<entry>cha<EFBFBD>ne de caract<63>re</entry>
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<entry>Non</entry>
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<entry><emphasis>n/a</emphasis></entry>
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<entry>Le nom de la boucle foreach, qui nous permettra
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d'acc<63>der <20> ses propri<72>t<EFBFBD>s.</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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<para>
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Les boucles <emphasis>{foreach}</emphasis> sont une alternative aux boucles
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<link linkend="language.function.section"><emphasis>section</emphasis></link>.
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Les boucles <emphasis>{foreach}</emphasis>
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sont utilis<69>es pour parcourir des <emphasis role="bold">tableaux associatifs simples</emphasis>.
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La syntaxe des boucles <emphasis>{foreach}</emphasis> est bien plus simple
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que celle des boucles <emphasis>{section}</emphasis>, mais en contrepartie,
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<emphasis role="bold">elles ne peuvent <20>tre utilis<69>es que pour des tableaux associatifs
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simples</emphasis>. La balise <emphasis>{foreach}</emphasis> doit toujours <20>tre accompagn<67>e
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de la balise <emphasis>{/foreach}</emphasis>. Les param<61>tres requis sont
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<emphasis>from</emphasis> et <emphasis>item</emphasis>. Le nom des boucles
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{foreach} doit <20>tre compos<6F>s exclusivement de lettres,
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chiffres et underscores, selon vos pr<70>f<EFBFBD>rences. Les boucles
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<emphasis>{foreach}</emphasis> peuvent <20>tre imbriqu<71>es.
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La variable <emphasis>from</emphasis> (g<>n<EFBFBD>ralement le tableau <20>
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parcourir) d<>termine le nombre de fois que <emphasis>{foreach}</emphasis>
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sera ex<65>cut<75>. <emphasis>{foreachelse}</emphasis> est ex<65>cut<75> si aucune
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valeur n'est pr<70>sente dans la variable donn<6E>e <20> l'attribut
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<emphasis>from</emphasis>.
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</para>
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<example>
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<title>foreach</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$arr = array( 1001,1002,1003);
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$smarty->assign('custid', $arr);
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?>
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]]>
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</programlisting>
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<programlisting>
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<![CDATA[
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{* Cet exemple affiche toutes les valeurs du tableau $custid *}
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{foreach from=$custid item=curr_id}
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id: {$curr_id}<br />
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{/foreach}
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]]>
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</programlisting>
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<para>
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L'exemple ci-dessus affichera :
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</para>
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<screen>
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<![CDATA[
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id: 1000<br />
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id: 1001<br />
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id: 1002<br />
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]]>
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</screen>
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</example>
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<example>
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<title>foreach key</title>
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<programlisting role="php">
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<![CDATA[
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// key contient la clef de chaque <20>l<EFBFBD>ment parcouru
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// L'assignement ressemble <20> ceci :
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<?php
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$smarty->assign('contacts', array(
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array('phone' => '1',
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'fax' => '2',
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'cell' => '3'),
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array('phone' => '555-4444',
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'fax' => '555-3333',
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'cell' => '760-1234'))
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);
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?>
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]]>
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</programlisting>
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<programlisting>
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<![CDATA[
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{foreach name=outer item=contact from=$contacts}
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<hr />
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{foreach key=key item=item from=$contact}
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{$key}: {$item}<br />
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{/foreach}
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{/foreach}
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]]>
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</programlisting>
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<para>
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L'exemple ci-dessus affichera :
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</para>
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<screen>
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<![CDATA[
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<hr />
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phone: 1<br />
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fax: 2<br />
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cell: 3<br />
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<hr />
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phone: 555-4444<br />
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fax: 555-3333<br />
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cell: 760-1234<br />
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]]>
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</screen>
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</example>
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<example>
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<title>{foreach} - Exemple avec une base de donn<6E>es (eg PEAR ou ADODB)</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$sql = 'select contact_id, name, nick from contacts order by contact';
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$smarty->assign("contacts", $db->getAssoc($sql));
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?>
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]]>
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</programlisting>
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<programlisting>
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<![CDATA[
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{foreach key=cid item=con from=$contacts}
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<a href="contact.php?contact_id={$cid}">{$con.name} - {$con.nick}</a><br />
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{/foreach}
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]]>
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</programlisting>
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</example>
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<para>
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Les boucles {foreach} ont <20>galement leurs propres variables qui g<>rent les propri<72>t<EFBFBD>s
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de {foreach}. Elles sont indiqu<71>es par :
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<link linkend="language.variables.smarty.loops">{$smarty.foreach.foreachname.varname}</link>
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o<> foreachname est le nom sp<73>cifi<66> par l'attribut <emphasis>name</emphasis>
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de foreach.
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</para>
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<para>Voir <link linkend="section.property.index">{section}</link>
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pour des exemples avec les prori<72>t<EFBFBD>s ci-dessus.
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</para>
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<sect2 id="foreach.property.iteration">
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<title>iteration</title>
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<para>
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<emphasis>iteration</emphasis> est utilis<69> pour afficher l'it<69>ration de la boucle courante.
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<emphasis>iteration</emphasis> commence toujours par 1 et est incr<63>ment<6E>
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<20> chaque it<69>ration.
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</para>
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</sect2>
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<sect2 id="foreach.property.first">
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<title>first</title>
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<para>
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<emphasis>first</emphasis> est d<>fini <20> true si l'it<69>ration courante de foreach est la premi<6D>re.
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</para>
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</sect2>
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<sect2 id="foreach.property.last">
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<title>last</title>
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<para>
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<emphasis>last</emphasis> est d<>fini <20> true si l'it<69>ration courante de foreach est la derni<6E>re.
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</para>
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</sect2>
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<sect2 id="foreach.property.show">
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<title>show</title>
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<para>
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<emphasis>show</emphasis> est utilis<69> en tant que param<61>tre de foreach.
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<emphasis>show</emphasis> est un bool<6F>en (true ou false).
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S'il vaut false, foreach ne sera pas affich<63>. Si foreachelse est pr<70>sent,
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il sera affich<63> alternativement.
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</para>
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</sect2>
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<sect2 id="foreach.property.total">
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<title>total</title>
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<para>
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<emphasis>total</emphasis> est utilis<69> pour afficher le nombre d'it<69>rations
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boucl<63>es par ce foreach. Il peut <20>tre utilis<69> dans ou apr<70>s le foreach.
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</para>
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<para>
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Voir aussi
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<link linkend="language.function.section">{section}</link> et
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<link linkend="language.variables.smarty.loops">$smarty.foreach</link>.
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</para>
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</sect2>
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</sect1>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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