php-doc-en/reference/dbase/functions/dbase-create.xml
2004-02-08 19:21:34 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<!-- splitted from ./en/functions/dbase.xml, last change in rev 1.2 -->
<refentry id="function.dbase-create">
<refnamediv>
<refname>dbase_create</refname>
<refpurpose>Creates a dBase database</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>int</type><methodname>dbase_create</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
<methodparam><type>array</type><parameter>fields</parameter></methodparam>
</methodsynopsis>
<para>
<function>dbase_create</function> creates a dBase database
in the file <parameter>filename</parameter>,
with the fields <parameter>fields</parameter>.
</para>
<para>
The <parameter>fields</parameter> parameter is an array of
arrays, each array describing the format of one field in the
database. Each field consists of a name, a character indicating
the field type, a length, and a precision.
</para>
<para>
The types of fields available are:
<variablelist>
<varlistentry>
<term>L</term>
<listitem>
<simpara>
Boolean. These do not have a length or precision.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>M</term>
<listitem>
<simpara>
Memo. (Note that these aren't supported by PHP.) These do
not have a length or precision.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>D</term>
<listitem>
<simpara>
Date (stored as YYYYMMDD). These do not have a length or
precision.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>N</term>
<listitem>
<simpara>
Number. These have both a length and a precision (the number
of digits after the decimal point).
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>C</term>
<listitem>
<simpara>
String.
</simpara>
</listitem>
</varlistentry>
</variablelist>
</para>
<note>
<para>
The fieldnames are limited in length and must not exceed 10 chars,
0 &lt; chars &lt;= 10.
</para>
</note>
<para>
If the database is successfully created, a dbase_identifier is
returned, otherwise &false; is returned.
<example>
<title>Creating a dBase database file</title>
<programlisting role="php">
<![CDATA[
<?php
// "database" name
$dbname = "/tmp/test.dbf";
// database "definition"
$def =
array(
array("date", "D"),
array("name", "C", 50),
array("age", "N", 3, 0),
array("email", "C", 128),
array("ismember", "L")
);
// creation
if (!dbase_create($dbname, $def))
echo "<strong>Error!</strong>";
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
</refentry>
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