php-doc-en/reference/ibase/functions/ibase-connect.xml
Christoph Michael Becker e41806c30b Revert revision(s) 351724 from phpdoc/en/trunk:
Document false and null return types

Cf. <https://news-web.php.net/php.doc.cvs/17645>.


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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.ibase-connect">
<refnamediv>
<refname>ibase_connect</refname>
<refpurpose>Open a connection to a database</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>resource</type><methodname>ibase_connect</methodname>
<methodparam choice="opt"><type>string</type><parameter>database</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>username</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>password</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>charset</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>buffers</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>dialect</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>role</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>sync</parameter></methodparam>
</methodsynopsis>
<para>
Establishes a connection to an Firebird/InterBase server.
</para>
<para>
In case a second call is made to <function>ibase_connect</function> with
the same arguments, no new link will be established, but instead, the link
identifier of the already opened link will be returned. The link to the
server will be closed as soon as the execution of the script ends, unless
it's closed earlier by explicitly calling <function>ibase_close</function>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>database</parameter></term>
<listitem>
<para>
The <parameter>database</parameter> argument has to be a valid path to
database file on the server it resides on. If the server is not local,
it must be prefixed with either 'hostname:' (TCP/IP), 'hostname/port:'
(TCP/IP with interbase server on custom TCP port), '//hostname/'
(NetBEUI), depending on the connection
protocol used.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>username</parameter></term>
<listitem>
<para>
The user name. Can be set with the
<literal>ibase.default_user</literal> &php.ini; directive.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>password</parameter></term>
<listitem>
<para>
The password for <parameter>username</parameter>. Can be set with the
<literal>ibase.default_password</literal> &php.ini; directive.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>charset</parameter></term>
<listitem>
<para>
<parameter>charset</parameter> is the default character set for a
database.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>buffers</parameter></term>
<listitem>
<para>
<parameter>buffers</parameter> is the number of database buffers to
allocate for the server-side cache. If 0 or omitted, server chooses
its own default.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>dialect</parameter></term>
<listitem>
<para>
<parameter>dialect</parameter> selects the default SQL dialect for any
statement executed within a connection, and it defaults to the highest
one supported by client libraries.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>role</parameter></term>
<listitem>
<para>
Functional only with InterBase 5 and up.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>sync</parameter></term>
<listitem>
<para>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns an Firebird/InterBase link identifier on success, or &false; on error.
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
If you get some error like "arithmetic exception, numeric overflow, or
string truncation. Cannot transliterate character between character sets"
(this occurs when you try use some character with accents) when using this
and after <function>ibase_query</function> you must set the character set
(i.e. ISO8859_1 or your current character set).
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>ibase_connect</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$host = 'localhost:/path/to/your.gdb';
$dbh = ibase_connect($host, $username, $password);
$stmt = 'SELECT * FROM tblname';
$sth = ibase_query($dbh, $stmt);
while ($row = ibase_fetch_object($sth)) {
echo $row->email, "\n";
}
ibase_free_result($sth);
ibase_close($dbh);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>ibase_pconnect</function></member>
<member><function>ibase_close</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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