<!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>Returns the thread ID for the current connection</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.maxdb-store-result.html">maxdb_store_result</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.maxdb-thread-safe.html">maxdb_thread_safe</a></div> <div class="up"><a href="ref.maxdb.html">MaxDB Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.maxdb-thread-id" class="refentry"> <div class="refnamediv"> <h1 class="refname">maxdb_thread_id</h1> <h1 class="refname">maxdb::thread_id</h1> <p class="verinfo">(PECL maxdb >= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_thread_id</span> -- <span class="refname">maxdb::thread_id</span> — <span class="dc-title">Returns the thread ID for the current connection</span></p> </div> <div class="refsect1 description" id="refsect1-function.maxdb-thread-id-description"> <h3 class="title">Description</h3> <p class="para">Procedural style</p> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><strong>maxdb_thread_id</strong></span> ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link</code></span> )</div> <p class="para rdfs-comment">Object oriented style</p> <div class="fieldsynopsis"><span class="type">int</span> <var class="varname">$maxdb->thread_id</var>;</div> <p class="para"> The <span class="function"><strong>maxdb_thread_id()</strong></span> function returns the thread ID for the current connection which can then be killed using the <span class="function"><a href="function.maxdb-kill.html" class="function">maxdb_kill()</a></span> function. If the connection is lost and you reconnect with <span class="function"><a href="function.maxdb-ping.html" class="function">maxdb_ping()</a></span>, the thread ID will be other. Therefore you should get the thread ID only when you need it. </p> <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> The thread ID is assigned on a connection-by-connection basis. Hence, if the connection is broken and then re-established a new thread ID will be assigned. </p> </p></blockquote> </div> <div class="refsect1 returnvalues" id="refsect1-function.maxdb-thread-id-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> <span class="function"><strong>maxdb_thread_id()</strong></span> returns the Thread ID for the current connection. </p> </div> <div class="refsect1 examples" id="refsect1-function.maxdb-thread-id-examples"> <h3 class="title">Examples</h3> <div class="example" id="example-1347"> <p><strong>Example #1 Object oriented style</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$maxdb </span><span style="color: #007700">= new </span><span style="color: #0000BB">maxdb</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #FF8000">/* determine our thread id */<br /></span><span style="color: #0000BB">$thread_id </span><span style="color: #007700">= </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">thread_id</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Kill connection */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">kill</span><span style="color: #007700">(</span><span style="color: #0000BB">$thread_id</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* This should produce an error */<br /></span><span style="color: #007700">if (!</span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE TABLE mycity LIKE hotel.city"</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Error: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">error</span><span style="color: #007700">);<br /> exit;<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <div class="example" id="example-1348"> <p><strong>Example #2 Procedural style</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #FF8000">/* determine our thread id */<br /></span><span style="color: #0000BB">$thread_id </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_thread_id</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Kill connection */<br /></span><span style="color: #0000BB">maxdb_kill</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #0000BB">$thread_id</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* This should produce an error */<br /></span><span style="color: #007700">if (!</span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"CREATE TABLE mycity LIKE hotel.city"</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Error: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_error</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">));<br /> exit;<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <p class="para">The above example will output something similar to:</p> <div class="example-contents screen"> <div class="cdata"><pre> Warning: maxdb_query(): -10821 Session not connected <...> Error: Session not connected </pre></div> </div> </div> <div class="refsect1 seealso" id="refsect1-function.maxdb-thread-id-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.maxdb-kill.html" class="function" rel="rdfs-seeAlso">maxdb_kill()</a> - Disconnects from a MaxDB server</span></li> </ul> </p> </div> 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