function.sqlite-factory.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>Opens a SQLite database and returns a SQLiteDatabase object</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.sqlite-exec.html">sqlite_exec</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sqlite-fetch-all.html">sqlite_fetch_all</a></div> <div class="up"><a href="ref.sqlite.html">SQLite Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.sqlite-factory" class="refentry"> <div class="refnamediv"> <h1 class="refname">sqlite_factory</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">sqlite_factory</span> — <span class="dc-title">Opens a SQLite database and returns a SQLiteDatabase object</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type"><span class="type SQLiteDatabase">SQLiteDatabase</span></span> <span class="methodname"><b><b>sqlite_factory</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$filename</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$mode</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter reference">&$error_message</tt></span> ]] )</div> <p class="para rdfs-comment"> <b>sqlite_factory()</b> behaves similarly to <a href="function.sqlite-open.html" class="function">sqlite_open()</a> in that it opens an SQLite database or attempts to create it if it does not exist. However, a <a href="ref.sqlite.html#sqlite.class.sqlitedatabase" class="link">SQLiteDatabase</a> object is returned rather than a resource. Please see the <a href="function.sqlite-open.html" class="function">sqlite_open()</a> reference page for further usage and caveats. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">filename</tt></i></span> <dd> <p class="para"> The filename of the SQLite database. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">mode</tt></i></span> <dd> <p class="para"> The mode of the file. Intended to be used to open the database in read-only mode. Presently, this parameter is ignored by the sqlite library. The default value for mode is the octal value <i>0666</i> and this is the recommended value. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">error_message</tt></i></span> <dd> <p class="para"> Passed by reference and is set to hold a descriptive error message explaining why the database could not be opened if there was an error. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns a SQLiteDatabase object on success, <b><tt>NULL</tt></b> on error. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>sqlite_factory()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$dbhandle </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlite_factory</span><span style="color: #007700">(</span><span style="color: #DD0000">'sqlitedb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$dbhandle</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">'SELECT user_id, username FROM users'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* functionally equivalent to: */<br /><br /></span><span style="color: #0000BB">$dbhandle </span><span style="color: #007700">= new </span><span style="color: #0000BB">SQLiteDatabase</span><span style="color: #007700">(</span><span style="color: #DD0000">'sqlitedb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$dbhandle</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">'SELECT user_id, username FROM users'</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.sqlite-open.html" class="function" rel="rdfs-seeAlso">sqlite_open()</a></li> <li class="member"><a href="function.sqlite-popen.html" class="function" rel="rdfs-seeAlso">sqlite_popen()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.sqlite-exec.html">sqlite_exec</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sqlite-fetch-all.html">sqlite_fetch_all</a></div> <div class="up"><a href="ref.sqlite.html">SQLite 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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