mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-19 18:38:55 +00:00
2c4e6c6649
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@324203 c90b9560-bf6c-de11-be94-00142212c4b1
299 lines
9 KiB
XML
299 lines
9 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
|
|
<!-- $Revision$ -->
|
|
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.htmlentities" xmlns:xlink="http://www.w3.org/1999/xlink">
|
|
<refnamediv>
|
|
<refname>htmlentities</refname>
|
|
<refpurpose>Convert all applicable characters to HTML entities</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsect1 role="description">
|
|
&reftitle.description;
|
|
<methodsynopsis>
|
|
<type>string</type><methodname>htmlentities</methodname>
|
|
<methodparam><type>string</type><parameter>string</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer>ENT_COMPAT | ENT_HTML401</initializer></methodparam>
|
|
<methodparam choice="opt"><type>string</type><parameter>encoding</parameter><initializer>'UTF-8'</initializer></methodparam>
|
|
<methodparam choice="opt"><type>bool</type><parameter>double_encode</parameter><initializer>true</initializer></methodparam>
|
|
</methodsynopsis>
|
|
<para>
|
|
This function is identical to <function>htmlspecialchars</function> in all
|
|
ways, except with <function>htmlentities</function>, all characters which
|
|
have HTML character entity equivalents are translated into these entities.
|
|
</para>
|
|
<para>
|
|
If you want to decode instead (the reverse) you can use
|
|
<function>html_entity_decode</function>.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="parameters">
|
|
&reftitle.parameters;
|
|
<para>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><parameter>string</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The input string.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>flags</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
A bitmask of one or more of the following flags, which specify how to handle quotes,
|
|
invalid code unit sequences and the used document type. The default is
|
|
<literal>ENT_COMPAT | ENT_HTML401</literal>.
|
|
<table>
|
|
<title>Available <parameter>flags</parameter> constants</title>
|
|
<tgroup cols="2">
|
|
<thead>
|
|
<row>
|
|
<entry>Constant Name</entry>
|
|
<entry>Description</entry>
|
|
</row>
|
|
</thead>
|
|
<tbody>
|
|
<row>
|
|
<entry><constant>ENT_COMPAT</constant></entry>
|
|
<entry>Will convert double-quotes and leave single-quotes alone.</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_QUOTES</constant></entry>
|
|
<entry>Will convert both double and single quotes.</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_NOQUOTES</constant></entry>
|
|
<entry>Will leave both double and single quotes unconverted.</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_IGNORE</constant></entry>
|
|
<entry>
|
|
Silently discard invalid code unit sequences instead of returning
|
|
an empty string. Using this flag is discouraged as it
|
|
<link xlink:href="&url.delete.nonchars;">may have security implications</link>.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_SUBSTITUTE</constant></entry>
|
|
<entry>
|
|
Replace invalid code unit sequences with a Unicode Replacement Character
|
|
U+FFFD (UTF-8) or &#FFFD; (otherwise) instead of returning an empty string.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_DISALLOWED</constant></entry>
|
|
<entry>
|
|
Replace invalid code points for the given document type with a
|
|
Unicode Replacement Character U+FFFD (UTF-8) or &#FFFD;
|
|
(otherwise) instead of leaving them as is. This may be useful, for
|
|
instance, to ensure the well-formedness of XML documents with
|
|
embedded external content.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_HTML401</constant></entry>
|
|
<entry>
|
|
Handle code as HTML 4.01.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_XML1</constant></entry>
|
|
<entry>
|
|
Handle code as XML 1.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_XHTML</constant></entry>
|
|
<entry>
|
|
Handle code as XHTML.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry><constant>ENT_HTML5</constant></entry>
|
|
<entry>
|
|
Handle code as HTML 5.
|
|
</entry>
|
|
</row>
|
|
</tbody>
|
|
</tgroup>
|
|
</table>
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>encoding</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Like <function>htmlspecialchars</function>,
|
|
<function>htmlentities</function> takes an optional third argument
|
|
<parameter>encoding</parameter> which defines encoding used in
|
|
conversion.
|
|
If omitted, the default value for this argument is ISO-8859-1 in
|
|
versions of PHP prior to 5.4.0, and UTF-8 from PHP 5.4.0 onwards.
|
|
Although this argument is technically optional, you are highly
|
|
encouraged to specify the correct value for your code.
|
|
</para>
|
|
&reference.strings.charsets;
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>double_encode</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
When <parameter>double_encode</parameter> is turned off PHP will not
|
|
encode existing html entities. The default is to convert everything.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="returnvalues">
|
|
&reftitle.returnvalues;
|
|
<para>
|
|
Returns the encoded string.
|
|
</para>
|
|
<para>
|
|
If the input <parameter>string</parameter> contains an invalid code unit
|
|
sequence within the given <parameter>encoding</parameter> an empty string
|
|
will be returned, unless either the <constant>ENT_IGNORE</constant> or
|
|
<constant>ENT_SUBSTITUTE</constant> flags are set.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="changelog">
|
|
&reftitle.changelog;
|
|
<para>
|
|
<informaltable>
|
|
<tgroup cols="2">
|
|
<thead>
|
|
<row>
|
|
<entry>&Version;</entry>
|
|
<entry>&Description;</entry>
|
|
</row>
|
|
</thead>
|
|
<tbody>
|
|
<row>
|
|
<entry>5.4.0</entry>
|
|
<entry>
|
|
The default value for the <parameter>encoding</parameter> parameter was
|
|
changed to UTF-8.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry>5.4.0</entry>
|
|
<entry>
|
|
The constants <constant>ENT_SUBSTITUTE</constant>, <constant>ENT_DISALLOWED</constant>,
|
|
<constant>ENT_HTML401</constant>, <constant>ENT_XML1</constant>,
|
|
<constant>ENT_XHTML</constant> and <constant>ENT_HTML5</constant> were added.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry>5.3.0</entry>
|
|
<entry>
|
|
The constant <constant>ENT_IGNORE</constant> was added.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry>5.2.3</entry>
|
|
<entry>
|
|
The <parameter>double_encode</parameter> parameter was added.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry>4.1.0</entry>
|
|
<entry>
|
|
The <parameter>encoding</parameter> parameter was added.
|
|
</entry>
|
|
</row>
|
|
<row>
|
|
<entry>4.0.3</entry>
|
|
<entry>
|
|
The <parameter>flags</parameter> parameter was added.
|
|
</entry>
|
|
</row>
|
|
</tbody>
|
|
</tgroup>
|
|
</informaltable>
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="examples">
|
|
&reftitle.examples;
|
|
<para>
|
|
<example>
|
|
<title>A <function>htmlentities</function> example</title>
|
|
<programlisting role="php">
|
|
<![CDATA[
|
|
<?php
|
|
$str = "A 'quote' is <b>bold</b>";
|
|
|
|
// Outputs: A 'quote' is <b>bold</b>
|
|
echo htmlentities($str);
|
|
|
|
// Outputs: A 'quote' is <b>bold</b>
|
|
echo htmlentities($str, ENT_QUOTES);
|
|
?>
|
|
]]>
|
|
</programlisting>
|
|
</example>
|
|
</para>
|
|
|
|
<para>
|
|
<example>
|
|
<title>Usage of <constant>ENT_IGNORE</constant></title>
|
|
<programlisting role="php">
|
|
<![CDATA[
|
|
<?php
|
|
$str = "\x8F!!!";
|
|
|
|
// Outputs an empty string
|
|
echo htmlentities($str, ENT_QUOTES, "UTF-8");
|
|
|
|
// Outputs "!!!"
|
|
echo htmlentities($str, ENT_QUOTES | ENT_IGNORE, "UTF-8");
|
|
?>
|
|
]]>
|
|
</programlisting>
|
|
</example>
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="seealso">
|
|
&reftitle.seealso;
|
|
<para>
|
|
<simplelist>
|
|
<member><function>html_entity_decode</function></member>
|
|
<member><function>get_html_translation_table</function></member>
|
|
<member><function>htmlspecialchars</function></member>
|
|
<member><function>nl2br</function></member>
|
|
<member><function>urlencode</function></member>
|
|
</simplelist>
|
|
</para>
|
|
</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
|
|
-->
|