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126 lines
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Sets the handler called when a server message is raised</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.sybase-set-message-handler" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">sybase_set_message_handler</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">sybase_set_message_handler</span> — <span class="dc-title">Sets the handler called when a server message is raised</span></p>
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</div>
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<div id="function.sybase-set-message-handler-refsynopsisdiv">
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<div class="warning"><strong class="warning">Warning</strong><p class="simpara">This function was
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<em class="emphasis">REMOVED</em> in PHP 7.0.0.</p></div>
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</div>
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<div class="refsect1 description" id="refsect1-function.sybase-set-message-handler-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>sybase_set_message_handler</strong></span>
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( <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$handler</code></span>
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[, <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link_identifier</code></span>
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] ) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>sybase_set_message_handler()</strong></span> sets a user function to
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handle messages generated by the server. You may specify the name of a
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global function, or use an array to specify an object reference and a
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method name.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.sybase-set-message-handler-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">handler</code></dt>
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<dd>
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<p class="para">
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The handler expects five arguments in the following order: message
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number, severity, state, line number and description. The first four
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are integers. The last is a string. If the function returns <strong><code>FALSE</code></strong>,
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PHP generates an ordinary error message.
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</p>
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</dd>
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<dt>
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<code class="parameter">link_identifier</code></dt>
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<dd>
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<p class="para">
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If the link identifier isn't specified, the last opened link is assumed.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.sybase-set-message-handler-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.sybase-set-message-handler-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-2597">
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<p><strong>Example #1 <span class="function"><strong>sybase_set_message_handler()</strong></span> callback function</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /> </span><span style="color: #007700">function </span><span style="color: #0000BB">msg_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$msgnumber</span><span style="color: #007700">, </span><span style="color: #0000BB">$severity</span><span style="color: #007700">, </span><span style="color: #0000BB">$state</span><span style="color: #007700">, </span><span style="color: #0000BB">$line</span><span style="color: #007700">, </span><span style="color: #0000BB">$text</span><span style="color: #007700">)<br /> {<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$msgnumber</span><span style="color: #007700">, </span><span style="color: #0000BB">$severity</span><span style="color: #007700">, </span><span style="color: #0000BB">$state</span><span style="color: #007700">, </span><span style="color: #0000BB">$line</span><span style="color: #007700">, </span><span style="color: #0000BB">$text</span><span style="color: #007700">);<br /> }<br /><br /> </span><span style="color: #0000BB">sybase_set_message_handler</span><span style="color: #007700">(</span><span style="color: #DD0000">'msg_handler'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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<div class="example" id="example-2598">
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<p><strong>Example #2 <span class="function"><strong>sybase_set_message_handler()</strong></span> callback to a class</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /> </span><span style="color: #007700">class </span><span style="color: #0000BB">Sybase </span><span style="color: #007700">{<br /> function </span><span style="color: #0000BB">handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$msgnumber</span><span style="color: #007700">, </span><span style="color: #0000BB">$severity</span><span style="color: #007700">, </span><span style="color: #0000BB">$state</span><span style="color: #007700">, </span><span style="color: #0000BB">$line</span><span style="color: #007700">, </span><span style="color: #0000BB">$text</span><span style="color: #007700">)<br /> {<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$msgnumber</span><span style="color: #007700">, </span><span style="color: #0000BB">$severity</span><span style="color: #007700">, </span><span style="color: #0000BB">$state</span><span style="color: #007700">, </span><span style="color: #0000BB">$line</span><span style="color: #007700">, </span><span style="color: #0000BB">$text</span><span style="color: #007700">);<br /> }<br /> }<br /><br /> </span><span style="color: #0000BB">$sybase</span><span style="color: #007700">= new </span><span style="color: #0000BB">Sybase</span><span style="color: #007700">();<br /> </span><span style="color: #0000BB">sybase_set_message_handler</span><span style="color: #007700">(array(</span><span style="color: #0000BB">$sybase</span><span style="color: #007700">, </span><span style="color: #DD0000">'handler'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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<div class="example" id="example-2599">
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<p><strong>Example #3 <span class="function"><strong>sybase_set_message_handler()</strong></span> unhandled messages</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /> </span><span style="color: #FF8000">// Return FALSE from this function to indicate you can't handle<br /> // this. The error is printed out as a warning, the way you're used<br /> // to it if there is no handler installed.<br /> </span><span style="color: #007700">function </span><span style="color: #0000BB">msg_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$msgnumber</span><span style="color: #007700">, </span><span style="color: #0000BB">$severity</span><span style="color: #007700">, </span><span style="color: #0000BB">$state</span><span style="color: #007700">, </span><span style="color: #0000BB">$line</span><span style="color: #007700">, </span><span style="color: #0000BB">$text</span><span style="color: #007700">)<br /> {<br /> if (</span><span style="color: #0000BB">257 </span><span style="color: #007700">== </span><span style="color: #0000BB">$msgnumber</span><span style="color: #007700">) {<br /> return </span><span style="color: #0000BB">false</span><span style="color: #007700">;<br /> }<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$msgnumber</span><span style="color: #007700">, </span><span style="color: #0000BB">$severity</span><span style="color: #007700">, </span><span style="color: #0000BB">$state</span><span style="color: #007700">, </span><span style="color: #0000BB">$line</span><span style="color: #007700">, </span><span style="color: #0000BB">$text</span><span style="color: #007700">);<br /> }<br /><br /> </span><span style="color: #0000BB">sybase_set_message_handler</span><span style="color: #007700">(</span><span style="color: #DD0000">'msg_handler'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.sybase-set-message-handler-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数仅适用于对 Sybase 使用 CT 库接口，而不适用于 DB 库。</span></p></blockquote>
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</div>
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</div></div></div></body></html> |