📄 function.samconnection-isconnected.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Queries whether a connection is established to a Messaging Server</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.samconnection-error.html">SAMConnection->error</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.samconnection-peek.html">SAMConnection->peek</a></div> <div class="up"><a href="ref.sam.html">SAM Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.samconnection-isconnected" class="refentry"> <div class="refnamediv"> <h1 class="refname">SAMConnection->isConnected</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">SAMConnection->isConnected</span> — <span class="dc-title"> Queries whether a connection is established to a Messaging Server </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="classsynopsis"> <div class="ooclass"><b class="classname">SAMConnection</b></div> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>isConnected</b></b></span> ( <span class="methodparam">void</span> )</div> </div> <p class="para"> Calling the "isConnected" method on a Connection object will check whether the PHP script is connected to a messaging server. No messages can be sent or received unless a connection has been established with a Messaging server. </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> This method returns <b><tt>TRUE</tt></b> if the SAMConnection object is successfully connected to a Messaging server or <b><tt>FALSE</tt></b> otherwise. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Checking whether there us a connection to a Messaging Server</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /><br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">$conn</span><span style="color: #007700">-></span><span style="color: #0000BB">isConnected</span><span style="color: #007700">()) {<br /> echo </span><span style="color: #DD0000">'Connection is active.'<br /></span><span style="color: #007700">} else {<br /> echo </span><span style="color: #DD0000">'No active connection!'<br /></span><span style="color: #007700">}<br /><br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.samconnection-disconnect.html" class="xref">SAMConnection->disconnect</a></li> <li class="member"><a href="function.samconnection-connect.html" class="xref">SAMConnection->connect</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.samconnection-error.html">SAMConnection->error</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.samconnection-peek.html">SAMConnection->peek</a></div> <div class="up"><a href="ref.sam.html">SAM Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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