<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Set options</title>
</head>
<body><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="mysqli.next-result.html">mysqli::next_result</a></div>
<div class="next" style="text-align: right; float: right;"><a href="mysqli.ping.html">mysqli::ping</a></div>
<div class="up"><a href="class.mysqli.html">mysqli</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="mysqli.options" class="refentry">
<div class="refnamediv">
<h1 class="refname">mysqli::options</h1>
<h1 class="refname">mysqli_options</h1>
<p class="verinfo">(PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">mysqli::options</span> -- <span class="refname">mysqli_options</span> — <span class="dc-title">Set options</span></p>
</div>
<div class="refsect1 description" id="refsect1-mysqli.options-description">
<h3 class="title">Description</h3>
<p class="para">Object oriented style</p>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>mysqli::options</strong></span>
( <span class="methodparam"><span class="type">int</span> <code class="parameter">$option</code></span>
, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$value</code></span>
)</div>
<p class="para rdfs-comment">Procedural style</p>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>mysqli_options</strong></span>
( <span class="methodparam"><span class="type"><a href="class.mysqli.html" class="type mysqli">mysqli</a></span> <code class="parameter">$link</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$option</code></span>
, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$value</code></span>
)</div>
<p class="para rdfs-comment">
Used to set extra connect options and affect behavior for a connection.
</p>
<p class="para">
This function may be called multiple times to set several options.
</p>
<p class="para">
<span class="function"><strong>mysqli_options()</strong></span> should be called after
<span class="function"><a href="mysqli.init.html" class="function">mysqli_init()</a></span> and before
<span class="function"><a href="mysqli.real-connect.html" class="function">mysqli_real_connect()</a></span>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-mysqli.options-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">
link</code></dt>
<dd>
<p class="para">Procedural style only: A link identifier
returned by <span class="function"><a href="function.mysqli-connect.html" class="function">mysqli_connect()</a></span> or <span class="function"><a href="mysqli.init.html" class="function">mysqli_init()</a></span>
</p></dd>
<dt>
<code class="parameter">option</code></dt>
<dd>
<p class="para">
The option that you want to set. It can be one of the following values:
<table class="doctable table">
<caption><strong>Valid options</strong></caption>
<thead>
<tr>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td><strong><code>MYSQLI_OPT_CONNECT_TIMEOUT</code></strong></td>
<td>connection timeout in seconds (supported on Windows with TCP/IP since PHP 5.3.1)</td>
</tr>
<tr>
<td><strong><code>MYSQLI_OPT_LOCAL_INFILE</code></strong></td>
<td>enable/disable use of <em>LOAD LOCAL INFILE</em></td>
</tr>
<tr>
<td><strong><code>MYSQLI_INIT_COMMAND</code></strong></td>
<td>command to execute after when connecting to MySQL server</td>
</tr>
<tr>
<td><strong><code>MYSQLI_READ_DEFAULT_FILE</code></strong></td>
<td>
Read options from named option file instead of <var class="filename">my.cnf</var>
</td>
</tr>
<tr>
<td><strong><code>MYSQLI_READ_DEFAULT_GROUP</code></strong></td>
<td>
Read options from the named group from <var class="filename">my.cnf</var>
or the file specified with <strong><code>MYSQL_READ_DEFAULT_FILE</code></strong>.
</td>
</tr>
<tr>
<td><strong><code>MYSQLI_SERVER_PUBLIC_KEY</code></strong></td>
<td>
RSA public key file used with the SHA-256 based authentication.
</td>
</tr>
<tr>
<td><strong><code>MYSQLI_OPT_NET_CMD_BUFFER_SIZE</code></strong></td>
<td>
The size of the internal command/network buffer. Only valid for
mysqlnd.
</td>
</tr>
<tr>
<td><strong><code>MYSQLI_OPT_NET_READ_BUFFER_SIZE</code></strong></td>
<td>
Maximum read chunk size in bytes when reading the body of a MySQL
command packet. Only valid for mysqlnd.
</td>
</tr>
<tr>
<td><strong><code>MYSQLI_OPT_INT_AND_FLOAT_NATIVE</code></strong></td>
<td>
Convert integer and float columns back to PHP numbers. Only valid
for mysqlnd.
</td>
</tr>
<tr>
<td><strong><code>MYSQLI_OPT_SSL_VERIFY_SERVER_CERT</code></strong></td>
<td>
</td>
</tr>
</tbody>
</table>
</p>
</dd>
<dt>
<code class="parameter">value</code></dt>
<dd>
<p class="para">
The value for the option.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-mysqli.options-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
</p>
</div>
<div class="refsect1 changelog" id="refsect1-mysqli.options-changelog">
<h3 class="title">Changelog</h3>
<p class="para">
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>5.5.0</td>
<td>
The <strong><code>MYSQLI_SERVER_PUBLIC_KEY</code></strong> and
<strong><code>MYSQLI_SERVER_PUBLIC_KEY</code></strong> options were added.
</td>
</tr>
<tr>
<td>5.3.0</td>
<td>
The <strong><code>MYSQLI_OPT_INT_AND_FLOAT_NATIVE</code></strong>,
<strong><code>MYSQLI_OPT_NET_CMD_BUFFER_SIZE</code></strong>,
<strong><code>MYSQLI_OPT_NET_READ_BUFFER_SIZE</code></strong>, and
<strong><code>MYSQLI_OPT_SSL_VERIFY_SERVER_CERT</code></strong> options were
added.
</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 examples" id="refsect1-mysqli.options-examples">
<h3 class="title">Examples</h3>
<p class="para">
See <span class="function"><a href="mysqli.real-connect.html" class="function">mysqli_real_connect()</a></span>.
</p>
</div>
<div class="refsect1 notes" id="refsect1-mysqli.options-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">MySQLnd always assumes the server default charset. This charset is sent during connection
hand-shake/authentication, which mysqlnd will use.</p><p class="para">Libmysqlclient uses the default charset set in the
<var class="filename">my.cnf</var> or by an explicit call to <span class="function"><strong>mysqli_options()</strong></span> prior to
calling <span class="function"><a href="mysqli.real-connect.html" class="function">mysqli_real_connect()</a></span>, but after <span class="function"><a href="mysqli.init.html" class="function">mysqli_init()</a></span>.</p></p></blockquote>
</div>
<div class="refsect1 seealso" id="refsect1-mysqli.options-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="mysqli.init.html" class="function" rel="rdfs-seeAlso">mysqli_init()</a> - Initializes MySQLi and returns a resource for use with mysqli_real_connect()</span></li>
<li class="member"><span class="function"><a href="mysqli.real-connect.html" class="function" rel="rdfs-seeAlso">mysqli_real_connect()</a> - Opens a connection to a mysql server</span></li>
</ul>
</p>
</div>
</div><hr /><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="mysqli.next-result.html">mysqli::next_result</a></div>
<div class="next" style="text-align: right; float: right;"><a href="mysqli.ping.html">mysqli::ping</a></div>
<div class="up"><a href="class.mysqli.html">mysqli</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
