<!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>Begins a database transaction</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.sqlsrv.html">SQLSRV Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sqlsrv-cancel.html">sqlsrv_cancel</a></div> <div class="up"><a href="ref.sqlsrv.html">SQLSRV Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.sqlsrv-begin-transaction" class="refentry"> <div class="refnamediv"> <h1 class="refname">sqlsrv_begin_transaction</h1> <p class="verinfo">(No version information available, might only be in SVN)</p><p class="refpurpose"><span class="refname">sqlsrv_begin_transaction</span> — <span class="dc-title">Begins a database transaction</span></p> </div> <div class="refsect1 description" id="refsect1-function.sqlsrv-begin-transaction-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><strong>sqlsrv_begin_transaction</strong></span> ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$conn</code></span> )</div> <p class="para rdfs-comment"> The transaction begun by <span class="function"><strong>sqlsrv_begin_transaction()</strong></span> includes all statements that were executed after the call to <span class="function"><strong>sqlsrv_begin_transaction()</strong></span> and before calls to <span class="function"><a href="function.sqlsrv-rollback.html" class="function">sqlsrv_rollback()</a></span> or <span class="function"><a href="function.sqlsrv-commit.html" class="function">sqlsrv_commit()</a></span>. Explicit transactions should be started and committed or rolled back using these functions instead of executing SQL statements that begin and committ/roll back transactions. For more information, see <a href="http://msdn.microsoft.com/en-us/library/cc296206.aspx" class="link external">» SQLSRV Transactions</a>. </p> </div> <div class="refsect1 parameters" id="refsect1-function.sqlsrv-begin-transaction-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">conn</code></em></span> <dd> <p class="para"> The connection resource returned by a call to <span class="function"><a href="function.sqlsrv-connect.html" class="function">sqlsrv_connect()</a></span>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.sqlsrv-begin-transaction-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 examples" id="refsect1-function.sqlsrv-begin-transaction-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-2167"> <p><strong>Example #1 <span class="function"><strong>sqlsrv_begin_transaction()</strong></span> example</strong></p> <div class="example-contents"><p> The following example demonstrates how to use <span class="function"><strong>sqlsrv_begin_transaction()</strong></span> together with <span class="function"><a href="function.sqlsrv-commit.html" class="function">sqlsrv_commit()</a></span> and <span class="function"><a href="function.sqlsrv-rollback.html" class="function">sqlsrv_rollback()</a></span>. </p></div> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$serverName </span><span style="color: #007700">= </span><span style="color: #DD0000">"serverName\sqlexpress"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$connectionInfo </span><span style="color: #007700">= array( </span><span style="color: #DD0000">"Database"</span><span style="color: #007700">=></span><span style="color: #DD0000">"dbName"</span><span style="color: #007700">, </span><span style="color: #DD0000">"UID"</span><span style="color: #007700">=></span><span style="color: #DD0000">"userName"</span><span style="color: #007700">, </span><span style="color: #DD0000">"PWD"</span><span style="color: #007700">=></span><span style="color: #DD0000">"password"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlsrv_connect</span><span style="color: #007700">( </span><span style="color: #0000BB">$serverName</span><span style="color: #007700">, </span><span style="color: #0000BB">$connectionInfo</span><span style="color: #007700">);<br />if( </span><span style="color: #0000BB">$conn </span><span style="color: #007700">=== </span><span style="color: #0000BB">false </span><span style="color: #007700">) {<br /> die( </span><span style="color: #0000BB">print_r</span><span style="color: #007700">( </span><span style="color: #0000BB">sqlsrv_errors</span><span style="color: #007700">(), </span><span style="color: #0000BB">true </span><span style="color: #007700">));<br />}<br /><br /></span><span style="color: #FF8000">/* Begin the transaction. */<br /></span><span style="color: #007700">if ( </span><span style="color: #0000BB">sqlsrv_begin_transaction</span><span style="color: #007700">( </span><span style="color: #0000BB">$conn </span><span style="color: #007700">) === </span><span style="color: #0000BB">false </span><span style="color: #007700">) {<br /> die( </span><span style="color: #0000BB">print_r</span><span style="color: #007700">( </span><span style="color: #0000BB">sqlsrv_errors</span><span style="color: #007700">(), </span><span style="color: #0000BB">true </span><span style="color: #007700">));<br />}<br /><br /></span><span style="color: #FF8000">/* Initialize parameter values. */<br /></span><span style="color: #0000BB">$orderId </span><span style="color: #007700">= </span><span style="color: #0000BB">1</span><span style="color: #007700">; </span><span style="color: #0000BB">$qty </span><span style="color: #007700">= </span><span style="color: #0000BB">10</span><span style="color: #007700">; </span><span style="color: #0000BB">$productId </span><span style="color: #007700">= </span><span style="color: #0000BB">100</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Set up and execute the first query. */<br /></span><span style="color: #0000BB">$sql1 </span><span style="color: #007700">= </span><span style="color: #DD0000">"INSERT INTO OrdersTable (ID, Quantity, ProductID)<br /> VALUES (?, ?, ?)"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$params1 </span><span style="color: #007700">= array( </span><span style="color: #0000BB">$orderId</span><span style="color: #007700">, </span><span style="color: #0000BB">$qty</span><span style="color: #007700">, </span><span style="color: #0000BB">$productId </span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$stmt1 </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlsrv_query</span><span style="color: #007700">( </span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #0000BB">$sql1</span><span style="color: #007700">, </span><span style="color: #0000BB">$params1 </span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Set up and execute the second query. */<br /></span><span style="color: #0000BB">$sql2 </span><span style="color: #007700">= </span><span style="color: #DD0000">"UPDATE InventoryTable <br /> SET Quantity = (Quantity - ?) <br /> WHERE ProductID = ?"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$params2 </span><span style="color: #007700">= array(</span><span style="color: #0000BB">$qty</span><span style="color: #007700">, </span><span style="color: #0000BB">$productId</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$stmt2 </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlsrv_query</span><span style="color: #007700">( </span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #0000BB">$sql2</span><span style="color: #007700">, </span><span style="color: #0000BB">$params2 </span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* If both queries were successful, commit the transaction. */<br />/* Otherwise, rollback the transaction. */<br /></span><span style="color: #007700">if( </span><span style="color: #0000BB">$stmt1 </span><span style="color: #007700">&& </span><span style="color: #0000BB">$stmt2 </span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">sqlsrv_commit</span><span style="color: #007700">( </span><span style="color: #0000BB">$conn </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"Transaction committed.<br />"</span><span style="color: #007700">;<br />} else {<br /> </span><span style="color: #0000BB">sqlsrv_rollback</span><span style="color: #007700">( </span><span style="color: #0000BB">$conn </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"Transaction rolled back.<br />"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> <div class="example-contents"><p>The above example will output something similar to:</p></div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.sqlsrv-begin-transaction-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.sqlsrv-commit.html" class="function" rel="rdfs-seeAlso">sqlsrv_commit()</a> - Commits a transaction that was begun with sqlsrv_begin_transaction</span></li> <li class="member"> <span class="function"><a href="function.sqlsrv-rollback.html" class="function" rel="rdfs-seeAlso">sqlsrv_rollback()</a> - Rolls back a transaction that was begun with sqlsrv_begin_transaction</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; 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