emphasis -> literal

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@169460 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Damien Seguy 2004-09-28 15:52:34 +00:00
parent c8b844ebea
commit 3808af7f18

View file

@ -1,10 +1,13 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
<!-- $Revision: 1.5 $ -->
<!-- splitted from ./en/functions/image.xml, last change in rev 1.78 -->
<refentry id="function.exif-read-data">
<refnamediv>
<refname>exif_read_data</refname>
<refpurpose>Reads the <acronym>EXIF</acronym> headers from <acronym>JPEG</acronym> or <acronym>TIFF</acronym></refpurpose>
<refpurpose>
Reads the <acronym>EXIF</acronym> headers from
<acronym>JPEG</acronym> or <acronym>TIFF</acronym>
</refpurpose>
</refnamediv>
<refsect1>
&reftitle.description;
@ -16,7 +19,7 @@
<methodparam choice="opt"><type>bool</type><parameter>thumbnail</parameter></methodparam>
</methodsynopsis>
<para>
The <function>exif_read_data</function> function reads the
<function>exif_read_data</function> function reads the
<acronym>EXIF</acronym> headers from a <acronym>JPEG</acronym> or
<acronym>TIFF</acronym> image file. This way you can read meta data
generated by digital cameras.
@ -28,19 +31,19 @@
a specific Exif header being present.
</para>
<para>
<emphasis>Height</emphasis> and <emphasis>Width</emphasis> are computed the
<literal>Height</literal> and <literal>Width</literal> are computed the
same way <function>getimagesize</function> does so their values must not be
part of any header returned. Also, <emphasis>html</emphasis> is a
part of any header returned. Also, <literal>html</literal> is a
height/width text string to be used inside normal <acronym>HTML</acronym>.
</para>
<para>
When an Exif header contains a Copyright note, this itself can contain two
values. As the solution is inconsistent in the Exif 2.10 standard, the COMPUTED
section will return both entries <emphasis>Copyright.Photographer</emphasis>
and <emphasis>Copyright.Editor</emphasis> while the IFD0 sections contains
section will return both entries <literal>Copyright.Photographer</literal>
and <literal>Copyright.Editor</literal> while the IFD0 sections contains
the byte array with the NULL character that splits both entries. Or just the
first entry if the datatype was wrong (normal behaviour of Exif). The
COMPUTED will also contain the entry <emphasis>Copyright</emphasis> which
COMPUTED will also contain the entry <literal>Copyright</literal> which
is either the original copyright string, or a comma separated list of the
photo and editor copyright.
</para>
@ -48,8 +51,8 @@
The tag UserComment has the same problem as the Copyright tag. It can store
two values. First the encoding used, and second the value itself. If so the
IFD section only contains the encoding or a byte array. The COMPUTED section
will store both in the entries <emphasis>UserCommentEncoding</emphasis> and
<emphasis>UserComment</emphasis>. The entry <emphasis>UserComment</emphasis>
will store both in the entries <literal>UserCommentEncoding</literal> and
<literal>UserComment</literal>. The entry <literal>UserComment</literal>
is available in both cases so it should be used in preference to the value
in IFD0 section.
</para>
@ -139,8 +142,8 @@
<listitem>
<para>
Specifies whether or not each section becomes an array. The
<parameter>sections</parameter> <emphasis>COMPUTED</emphasis>,
<emphasis>THUMBNAIL</emphasis>, and <emphasis>COMMENT</emphasis>
<parameter>sections</parameter> <literal>COMPUTED</literal>,
<literal>THUMBNAIL</literal>, and <literal>COMMENT</literal>
always become arrays as they may contain values whose names conflict
with other sections.
</para>
@ -184,7 +187,7 @@
<entry>
Can read all embedded <acronym>IFD</acronym> data including arrays
(returned as such). Also the size of an embedded thumbnail is
returned in a <emphasis>THUMBNAIL</emphasis> subarray, and can
returned in a <literal>THUMBNAIL</literal> subarray, and can
return thumbnails in <acronym>TIFF</acronym> format. Also, there is
no longer a maximum length for returned values (not until the memory
limit has been reached)