summaryrefslogtreecommitdiffstats
path: root/user_guide/database/results.html
diff options
context:
space:
mode:
authorDerek Allard <derek.allard@ellislab.com>2008-11-13 23:59:24 +0100
committerDerek Allard <derek.allard@ellislab.com>2008-11-13 23:59:24 +0100
commit2067d1a727e7eb5e5ffb40e967f3d1fc4c8a41b2 (patch)
treea95e01024205837e9580757350d04b233e82503f /user_guide/database/results.html
parentdd9f932556d3cd45a1d06cc478f40d06b7649a69 (diff)
Changing EOL style to LF
Diffstat (limited to 'user_guide/database/results.html')
-rw-r--r--user_guide/database/results.html474
1 files changed, 237 insertions, 237 deletions
diff --git a/user_guide/database/results.html b/user_guide/database/results.html
index a6ca62190..7f8879e30 100644
--- a/user_guide/database/results.html
+++ b/user_guide/database/results.html
@@ -1,238 +1,238 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
-<head>
-
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<title>Generating Query Results : CodeIgniter User Guide</title>
-
-<style type='text/css' media='all'>@import url('../userguide.css');</style>
-<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
-
-<script type="text/javascript" src="../nav/nav.js"></script>
-<script type="text/javascript" src="../nav/prototype.lite.js"></script>
-<script type="text/javascript" src="../nav/moo.fx.js"></script>
-<script type="text/javascript" src="../nav/user_guide_menu.js"></script>
-
-<meta http-equiv='expires' content='-1' />
-<meta http-equiv= 'pragma' content='no-cache' />
-<meta name='robots' content='all' />
-<meta name='author' content='ExpressionEngine Dev Team' />
-<meta name='description' content='CodeIgniter User Guide' />
-
-</head>
-<body>
-
-<!-- START NAVIGATION -->
-<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
-<div id="masthead">
-<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
-<tr>
-<td><h1>CodeIgniter User Guide Version 1.7</h1></td>
-<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
-</tr>
-</table>
-</div>
-<!-- END NAVIGATION -->
-
-
-<!-- START BREADCRUMB -->
-<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
-<tr>
-<td id="breadcrumb">
-<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
-<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
-<a href="index.html">Database Library</a> &nbsp;&#8250;&nbsp;
-Query Results
-</td>
-<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
-</tr>
-</table>
-<!-- END BREADCRUMB -->
-
-
-<br clear="all" />
-
-
-<!-- START CONTENT -->
-<div id="content">
-
-
-
-<h1>Generating Query Results</h1>
-
-
-<p>There are several ways to generate query results:</p>
-
- <h2>result()</h2>
-
- <p>This function returns the query result as an array of <strong>objects</strong>, or <strong>an empty array</strong> on failure.
-
- Typically you'll use this in a foreach loop, like this:</p>
-
- <code>
- $query = $this->db->query("YOUR QUERY");<br />
- <br />
- foreach ($query->result() as $row)<br />
- {<br />
- &nbsp;&nbsp;&nbsp;echo $row->title;<br />
- &nbsp;&nbsp;&nbsp;echo $row->name;<br />
- &nbsp;&nbsp;&nbsp;echo $row->body;<br />
- }</code>
-
- <p>The above <dfn>function</dfn> is an alias of <dfn>result_object()</dfn>.</p>
-
- <p>If you run queries that might <strong>not</strong> produce a result, you are encouraged to test the result first:</p>
-
- <code>
- $query = $this->db->query("YOUR QUERY");<br />
- <br />
- if ($query->num_rows() > 0)<br />
- {<br />
- &nbsp;&nbsp;&nbsp;foreach ($query->result() as $row)<br />
- &nbsp;&nbsp;&nbsp;{<br />
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo $row->title;<br />
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo $row->name;<br />
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo $row->body;<br />
- &nbsp;&nbsp;&nbsp;}<br />
- }
- </code>
-
- <h2>result_array()</h2>
-
- <p>This function returns the query result as a pure array, or an empty array when no result is produced. Typically you'll use this in a foreach loop, like this:</p>
- <code>
- $query = $this->db->query("YOUR QUERY");<br />
- <br />
- foreach ($query->result_array() as $row)<br />
- {<br />
- &nbsp;&nbsp;&nbsp;echo $row['title'];<br />
- &nbsp;&nbsp;&nbsp;echo $row['name'];<br />
- &nbsp;&nbsp;&nbsp;echo $row['body'];<br />
- }</code>
-
-
- <h2>row()</h2>
-
- <p>This function returns a single result row. If your query has more than one row, it returns only the first row.
- The result is returned as an <strong>object</strong>. Here's a usage example:</p>
- <code>
- $query = $this->db->query("YOUR QUERY");<br />
- <br />
- if ($query->num_rows() > 0)<br />
- {<br />
- &nbsp;&nbsp;&nbsp;$row = $query->row();
- <br /><br />
- &nbsp;&nbsp;&nbsp;echo $row->title;<br />
- &nbsp;&nbsp;&nbsp;echo $row->name;<br />
- &nbsp;&nbsp;&nbsp;echo $row->body;<br />
- }
- </code>
-
- <p>If you want a specific row returned you can submit the row number as a digit in the first parameter:</p>
-
- <code>$row = $query->row(<dfn>5</dfn>);</code>
-
-
- <h2>row_array()</h2>
-
- <p>Identical to the above <var>row()</var> function, except it returns an array. Example:</p>
-
- <code>
- $query = $this->db->query("YOUR QUERY");<br />
- <br />
- if ($query->num_rows() > 0)<br />
- {<br />
- &nbsp;&nbsp;&nbsp;$row = $query->row_array();
- <br /><br />
- &nbsp;&nbsp;&nbsp;echo $row['title'];<br />
- &nbsp;&nbsp;&nbsp;echo $row['name'];<br />
- &nbsp;&nbsp;&nbsp;echo $row['body'];<br />
- }
- </code>
-
-
- <p>If you want a specific row returned you can submit the row number as a digit in the first parameter:</p>
-
- <code>$row = $query->row_array(<dfn>5</dfn>);</code>
-
-
- <p>In addition, you can walk forward/backwards/first/last through your results using these variations:</p>
-
-<p>
- <strong>$row = $query->first_row()</strong><br />
- <strong>$row = $query->last_row()</strong><br />
- <strong>$row = $query->next_row()</strong><br />
- <strong>$row = $query->previous_row()</strong>
-</p>
-
-<p>By default they return an object unless you put the word "array" in the parameter:</p>
-
-<p>
- <strong>$row = $query->first_row('array')</strong><br />
- <strong>$row = $query->last_row('array')</strong><br />
- <strong>$row = $query->next_row('array')</strong><br />
- <strong>$row = $query->previous_row('array')</strong>
-</p>
-
-
-
-<h1>Result Helper Functions</h1>
-
-
-<h2>$query->num_rows()</h2>
-<p>The number of rows returned by the query. Note: In this example, <dfn>$query</dfn> is the variable that the query result object is assigned to:</p>
-
-<code>$query = $this->db->query('SELECT * FROM my_table');<br /><br />
-echo $query->num_rows();
-</code>
-
-<h2>$query->num_fields()</h2>
-<p>The number of FIELDS (columns) returned by the query. Make sure to call the function using your query result object:</p>
-
-<code>$query = $this->db->query('SELECT * FROM my_table');<br /><br />
-echo $query->num_fields();
-</code>
-
-
-
-<h2>$query->free_result()</h2>
-<p>It frees the memory associated with the result and deletes the result resource ID. Normally PHP frees its memory automatically at the end of script
-execution. However, if you are running a lot of queries in a particular script you might want to free the result after each query result has been
-generated in order to cut down on memory consumptions. Example:
-</p>
-
-<code>$query = $this->db->query('SELECT title FROM my_table');<br /><br />
-foreach ($query->result() as $row)<br />
-{<br />
-&nbsp;&nbsp;&nbsp;echo $row->title;<br />
-}<br />
-$query->free_result(); // The $query result object will no longer be available<br />
-<br />
-$query2 = $this->db->query('SELECT name FROM some_table');<br /><br />
-$row = $query2->row();<br />
-echo $row->name;<br />
-$query2->free_result(); // The $query2 result object will no longer be available
-</code>
-
-
-
-
-
-</div>
-<!-- END CONTENT -->
-
-
-<div id="footer">
-<p>
-Previous Topic:&nbsp;&nbsp;<a href="queries.html">Queries</a>
-&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
-<a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
-<a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
-Next Topic:&nbsp;&nbsp;<a href="helpers.html">Query Helper Functions</a>
-</p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006-2008 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
-</div>
-
-</body>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<title>Generating Query Results : CodeIgniter User Guide</title>
+
+<style type='text/css' media='all'>@import url('../userguide.css');</style>
+<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
+
+<script type="text/javascript" src="../nav/nav.js"></script>
+<script type="text/javascript" src="../nav/prototype.lite.js"></script>
+<script type="text/javascript" src="../nav/moo.fx.js"></script>
+<script type="text/javascript" src="../nav/user_guide_menu.js"></script>
+
+<meta http-equiv='expires' content='-1' />
+<meta http-equiv= 'pragma' content='no-cache' />
+<meta name='robots' content='all' />
+<meta name='author' content='ExpressionEngine Dev Team' />
+<meta name='description' content='CodeIgniter User Guide' />
+
+</head>
+<body>
+
+<!-- START NAVIGATION -->
+<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="masthead">
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td><h1>CodeIgniter User Guide Version 1.7</h1></td>
+<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
+</tr>
+</table>
+</div>
+<!-- END NAVIGATION -->
+
+
+<!-- START BREADCRUMB -->
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td id="breadcrumb">
+<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
+<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
+<a href="index.html">Database Library</a> &nbsp;&#8250;&nbsp;
+Query Results
+</td>
+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
+</tr>
+</table>
+<!-- END BREADCRUMB -->
+
+
+<br clear="all" />
+
+
+<!-- START CONTENT -->
+<div id="content">
+
+
+
+<h1>Generating Query Results</h1>
+
+
+<p>There are several ways to generate query results:</p>
+
+ <h2>result()</h2>
+
+ <p>This function returns the query result as an array of <strong>objects</strong>, or <strong>an empty array</strong> on failure.
+
+ Typically you'll use this in a foreach loop, like this:</p>
+
+ <code>
+ $query = $this->db->query("YOUR QUERY");<br />
+ <br />
+ foreach ($query->result() as $row)<br />
+ {<br />
+ &nbsp;&nbsp;&nbsp;echo $row->title;<br />
+ &nbsp;&nbsp;&nbsp;echo $row->name;<br />
+ &nbsp;&nbsp;&nbsp;echo $row->body;<br />
+ }</code>
+
+ <p>The above <dfn>function</dfn> is an alias of <dfn>result_object()</dfn>.</p>
+
+ <p>If you run queries that might <strong>not</strong> produce a result, you are encouraged to test the result first:</p>
+
+ <code>
+ $query = $this->db->query("YOUR QUERY");<br />
+ <br />
+ if ($query->num_rows() > 0)<br />
+ {<br />
+ &nbsp;&nbsp;&nbsp;foreach ($query->result() as $row)<br />
+ &nbsp;&nbsp;&nbsp;{<br />
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo $row->title;<br />
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo $row->name;<br />
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo $row->body;<br />
+ &nbsp;&nbsp;&nbsp;}<br />
+ }
+ </code>
+
+ <h2>result_array()</h2>
+
+ <p>This function returns the query result as a pure array, or an empty array when no result is produced. Typically you'll use this in a foreach loop, like this:</p>
+ <code>
+ $query = $this->db->query("YOUR QUERY");<br />
+ <br />
+ foreach ($query->result_array() as $row)<br />
+ {<br />
+ &nbsp;&nbsp;&nbsp;echo $row['title'];<br />
+ &nbsp;&nbsp;&nbsp;echo $row['name'];<br />
+ &nbsp;&nbsp;&nbsp;echo $row['body'];<br />
+ }</code>
+
+
+ <h2>row()</h2>
+
+ <p>This function returns a single result row. If your query has more than one row, it returns only the first row.
+ The result is returned as an <strong>object</strong>. Here's a usage example:</p>
+ <code>
+ $query = $this->db->query("YOUR QUERY");<br />
+ <br />
+ if ($query->num_rows() > 0)<br />
+ {<br />
+ &nbsp;&nbsp;&nbsp;$row = $query->row();
+ <br /><br />
+ &nbsp;&nbsp;&nbsp;echo $row->title;<br />
+ &nbsp;&nbsp;&nbsp;echo $row->name;<br />
+ &nbsp;&nbsp;&nbsp;echo $row->body;<br />
+ }
+ </code>
+
+ <p>If you want a specific row returned you can submit the row number as a digit in the first parameter:</p>
+
+ <code>$row = $query->row(<dfn>5</dfn>);</code>
+
+
+ <h2>row_array()</h2>
+
+ <p>Identical to the above <var>row()</var> function, except it returns an array. Example:</p>
+
+ <code>
+ $query = $this->db->query("YOUR QUERY");<br />
+ <br />
+ if ($query->num_rows() > 0)<br />
+ {<br />
+ &nbsp;&nbsp;&nbsp;$row = $query->row_array();
+ <br /><br />
+ &nbsp;&nbsp;&nbsp;echo $row['title'];<br />
+ &nbsp;&nbsp;&nbsp;echo $row['name'];<br />
+ &nbsp;&nbsp;&nbsp;echo $row['body'];<br />
+ }
+ </code>
+
+
+ <p>If you want a specific row returned you can submit the row number as a digit in the first parameter:</p>
+
+ <code>$row = $query->row_array(<dfn>5</dfn>);</code>
+
+
+ <p>In addition, you can walk forward/backwards/first/last through your results using these variations:</p>
+
+<p>
+ <strong>$row = $query->first_row()</strong><br />
+ <strong>$row = $query->last_row()</strong><br />
+ <strong>$row = $query->next_row()</strong><br />
+ <strong>$row = $query->previous_row()</strong>
+</p>
+
+<p>By default they return an object unless you put the word "array" in the parameter:</p>
+
+<p>
+ <strong>$row = $query->first_row('array')</strong><br />
+ <strong>$row = $query->last_row('array')</strong><br />
+ <strong>$row = $query->next_row('array')</strong><br />
+ <strong>$row = $query->previous_row('array')</strong>
+</p>
+
+
+
+<h1>Result Helper Functions</h1>
+
+
+<h2>$query->num_rows()</h2>
+<p>The number of rows returned by the query. Note: In this example, <dfn>$query</dfn> is the variable that the query result object is assigned to:</p>
+
+<code>$query = $this->db->query('SELECT * FROM my_table');<br /><br />
+echo $query->num_rows();
+</code>
+
+<h2>$query->num_fields()</h2>
+<p>The number of FIELDS (columns) returned by the query. Make sure to call the function using your query result object:</p>
+
+<code>$query = $this->db->query('SELECT * FROM my_table');<br /><br />
+echo $query->num_fields();
+</code>
+
+
+
+<h2>$query->free_result()</h2>
+<p>It frees the memory associated with the result and deletes the result resource ID. Normally PHP frees its memory automatically at the end of script
+execution. However, if you are running a lot of queries in a particular script you might want to free the result after each query result has been
+generated in order to cut down on memory consumptions. Example:
+</p>
+
+<code>$query = $this->db->query('SELECT title FROM my_table');<br /><br />
+foreach ($query->result() as $row)<br />
+{<br />
+&nbsp;&nbsp;&nbsp;echo $row->title;<br />
+}<br />
+$query->free_result(); // The $query result object will no longer be available<br />
+<br />
+$query2 = $this->db->query('SELECT name FROM some_table');<br /><br />
+$row = $query2->row();<br />
+echo $row->name;<br />
+$query2->free_result(); // The $query2 result object will no longer be available
+</code>
+
+
+
+
+
+</div>
+<!-- END CONTENT -->
+
+
+<div id="footer">
+<p>
+Previous Topic:&nbsp;&nbsp;<a href="queries.html">Queries</a>
+&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+Next Topic:&nbsp;&nbsp;<a href="helpers.html">Query Helper Functions</a>
+</p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006-2008 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
+</div>
+
+</body>
</html> \ No newline at end of file