function.odbc-connect.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>Connect to a datasource</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.odbc-commit.html">odbc_commit</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.odbc-cursor.html">odbc_cursor</a></div> <div class="up"><a href="ref.uodbc.html">ODBC Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.odbc-connect" class="refentry"> <div class="refnamediv"> <h1 class="refname">odbc_connect</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">odbc_connect</span> — <span class="dc-title">Connect to a datasource</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">resource</span> <span class="methodname"><b><b>odbc_connect</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$dsn</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$user</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$password</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$cursor_type</tt></span> ] )</div> <p class="simpara"> The connection id returned by this functions is needed by other ODBC functions. You can have multiple connections open at once as long as they either use different db or different credentials. </p> <p class="simpara"> With some ODBC drivers, executing a complex stored procedure may fail with an error similar to: "Cannot open a cursor on a stored procedure that has anything other than a single select statement in it". Using SQL_CUR_USE_ODBC may avoid that error. Also, some drivers don't support the optional row_number parameter in <a href="function.odbc-fetch-row.html" class="function">odbc_fetch_row()</a>. SQL_CUR_USE_ODBC might help in that case, too. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">dsn</tt></i></span> <dd> <p class="para"> The database source name for the connection. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">user</tt></i></span> <dd> <p class="para"> The username. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">password</tt></i></span> <dd> <p class="para"> The password. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">cursor_type</tt></i></span> <dd> <p class="para"> This sets the type of cursor to be used for this connection. This parameter is not normally needed, but can be useful for working around problems with some ODBC drivers. </p> <span class="simpara"> The following constants are defined for cursortype: </span> <p class="para"> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"> SQL_CUR_USE_IF_NEEDED </span> </li> <li class="listitem"> <span class="simpara"> SQL_CUR_USE_ODBC </span> </li> <li class="listitem"> <span class="simpara"> SQL_CUR_USE_DRIVER </span> </li> <li class="listitem"> <span class="simpara"> SQL_CUR_DEFAULT </span> </li> </ul> </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns an ODBC connection id or 0 (<b><tt>FALSE</tt></b>) on error. </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member">For persistent connections: <a href="function.odbc-pconnect.html" class="function" rel="rdfs-seeAlso">odbc_pconnect()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.odbc-commit.html">odbc_commit</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.odbc-cursor.html">odbc_cursor</a></div> <div class="up"><a href="ref.uodbc.html">ODBC 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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