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ltrim.xml
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129 lines (115 loc) · 3.09 KB
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<?xml version="1.0" encoding="utf-8"?>
<!-- EN-Revision: 27ae0a4a16cdfc868a884c0f0dad7023b5f2709c Maintainer: PhilDaiguille Status: ready -->
<!-- Reviewed: yes -->
<refentry xml:id="function.ltrim" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>ltrim</refname>
<refpurpose>Elimina los espacios (u otros caracteres) del inicio de un string</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>ltrim</methodname>
<methodparam><type>string</type><parameter>string</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>characters</parameter><initializer>" \n\r\t\v\x00"</initializer></methodparam>
</methodsynopsis>
<para>
Elimina los espacios (u otros caracteres) del inicio de un string.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>string</parameter></term>
<listitem>
<simpara>
El string de entrada.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>characters</parameter></term>
<listitem>
&strings.parameter.characters.optional;
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<simpara>
Esta función devuelve un string con los espacios eliminados al inicio del <parameter>string</parameter>.
</simpara>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Ejemplo con <function>ltrim</function></title>
<programlisting role="php">
<![CDATA[
<?php
$text = "\t\tThese are a few words :) ... ";
$binary = "\x09Example string\x0A";
$hello = "Hello World";
var_dump($text, $binary, $hello);
print "\n";
$trimmed = ltrim($text);
var_dump($trimmed);
$trimmed = ltrim($text, " \t.");
var_dump($trimmed);
$trimmed = ltrim($hello, "Hdle");
var_dump($trimmed);
// Elimina los caracteres de control ASCII del inicio de $binary
// (de 0 a 31, inclusive)
$clean = ltrim($binary, "\x00..\x1F");
var_dump($clean);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
string(32) " These are a few words :) ... "
string(16) " Example string
"
string(11) "Hello World"
string(30) "These are a few words :) ... "
string(30) "These are a few words :) ... "
string(7) "o World"
string(15) "Example string
"
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><function>trim</function></member>
<member><function>rtrim</function></member>
</simplelist>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->