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89 lines
4.9 KiB
HTML
89 lines
4.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Returns the current in-transaction status of the server</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.pg-transaction-status" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">pg_transaction_status</h1>
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<p class="verinfo">(PHP 5 >= 5.1.0, PHP 7)</p><p class="refpurpose"><span class="refname">pg_transaction_status</span> — <span class="dc-title">Returns the current in-transaction status of the server</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.pg-transaction-status-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>pg_transaction_status</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection</code></span>
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) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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Returns the current in-transaction status of the server.
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</p>
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<div class="caution"><strong class="caution">Caution</strong>
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<p class="para">
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<span class="function"><strong>pg_transaction_status()</strong></span> will give incorrect results when using
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a PostgreSQL 7.3 server that has the parameter <em>autocommit</em>
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set to off. The server-side autocommit feature has been
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deprecated and does not exist in later server versions.
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</p>
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</div>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.pg-transaction-status-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">connection</code></dt>
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<dd>
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<p class="para">
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PostgreSQL database connection resource.
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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.pg-transaction-status-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">The status can be <strong><code>PGSQL_TRANSACTION_IDLE</code></strong> (currently idle),
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<strong><code>PGSQL_TRANSACTION_ACTIVE</code></strong> (a command is in progress),
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<strong><code>PGSQL_TRANSACTION_INTRANS</code></strong> (idle, in a valid transaction block),
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or <strong><code>PGSQL_TRANSACTION_INERROR</code></strong> (idle, in a failed transaction block).
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<strong><code>PGSQL_TRANSACTION_UNKNOWN</code></strong> is reported if the connection is bad.
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<strong><code>PGSQL_TRANSACTION_ACTIVE</code></strong> is reported only when a query
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has been sent to the server and not yet completed.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.pg-transaction-status-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-2520">
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<p><strong>Example #1 <span class="function"><strong>pg_transaction_status()</strong></span> example</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 /> $dbconn </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"dbname=publisher"</span><span style="color: #007700">) or die(</span><span style="color: #DD0000">"Could not connect"</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">$stat </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_transaction_status</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbconn</span><span style="color: #007700">);<br /> if (</span><span style="color: #0000BB">$stat </span><span style="color: #007700">=== </span><span style="color: #0000BB">PGSQL_TRANSACTION_UNKNOWN</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">'Connection is bad'</span><span style="color: #007700">;<br /> } else if (</span><span style="color: #0000BB">$stat </span><span style="color: #007700">=== </span><span style="color: #0000BB">PGSQL_TRANSACTION_IDLE</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">'Connection is currently idle'</span><span style="color: #007700">;<br /> } else {<br /> echo </span><span style="color: #DD0000">'Connection is in a transaction state'</span><span style="color: #007700">;<br /> } <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></div></div></body></html> |