mirror of
https://github.com/macintoshplus/doc-fr.git
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182 lines
4.8 KiB
XML
182 lines
4.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- EN-Revision: eabde0419cf90f596f60db00e31fcb6ebe41ac55 Maintainer: yannick Status: ready -->
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<!-- Reviewed: yes -->
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<refentry xml:id="function.ltrim" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>ltrim</refname>
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<refpurpose>Supprime les espaces (ou d'autres caractères) de début de chaîne</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>string</type><methodname>ltrim</methodname>
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<methodparam><type>string</type><parameter>string</parameter></methodparam>
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<methodparam choice="opt"><type>string</type><parameter>characters</parameter><initializer>" \n\r\t\v\x00"</initializer></methodparam>
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</methodsynopsis>
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<para>
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Supprime les espaces (ou d'autres caractères) de début de chaîne.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>string</parameter></term>
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<listitem>
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<para>
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La chaîne d'entrée.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>characters</parameter></term>
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<listitem>
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<para>
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Il est aussi possible de spécifier les caractères à
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supprimer en utilisant le paramètre <parameter>characters</parameter>.
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Listez simplement les caractères que vous voulez supprimer dans
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ce paramètre. Avec <literal>..</literal>, vous pourrez spécifier
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des intervalles de caractères.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Cette fonction retourne la chaîne <parameter>string</parameter>, après
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avoir supprimé les caractères invisibles de début de chaîne.
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Si le second paramètre <parameter>characters</parameter> a été omis,
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<function>ltrim</function> supprimera les caractères suivants :
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<itemizedlist>
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<listitem>
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<simpara>
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" " (<acronym>ASCII</acronym> <literal>32</literal>
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(<literal>0x20</literal>)), un espace ordinaire.
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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"\t" (<acronym>ASCII</acronym> <literal>9</literal>
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(<literal>0x09</literal>)), une tabulation.
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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"\n" (<acronym>ASCII</acronym> <literal>10</literal>
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(<literal>0x0A</literal>)), une nouvelle ligne (<literal>line feed</literal>).
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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"\r" (<acronym>ASCII</acronym> <literal>13</literal>
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(<literal>0x0D</literal>)), un retour chariot (<literal>carriage return</literal>).
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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"\0" (<acronym>ASCII</acronym> <literal>0</literal>
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(<literal>0x00</literal>)), le caractère <literal>NUL</literal>.
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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"\v" (<acronym>ASCII</acronym> <literal>11</literal>
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(<literal>0x0B</literal>)), une tabulation verticale.
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</simpara>
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</listitem>
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</itemizedlist>
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>Exemple avec <function>ltrim</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$text = "\t\tThese are a few words :) ... ";
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$binary = "\x09Example string\x0A";
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$hello = "Hello World";
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var_dump($text, $binary, $hello);
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print "\n";
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$trimmed = ltrim($text);
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var_dump($trimmed);
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$trimmed = ltrim($text, " \t.");
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var_dump($trimmed);
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$trimmed = ltrim($hello, "Hdle");
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var_dump($trimmed);
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// Supprime les caractères de contrôle ASCII du début de $binary
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// (de 0 à 31, inclusif)
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$clean = ltrim($binary, "\x00..\x1F");
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var_dump($clean);
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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string(32) " These are a few words :) ... "
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string(16) " Example string
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"
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string(11) "Hello World"
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string(30) "These are a few words :) ... "
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string(30) "These are a few words :) ... "
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string(7) "o World"
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string(15) "Example string
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"
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]]>
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</screen>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>trim</function></member>
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<member><function>rtrim</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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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:"~/.phpdoc/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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