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| author | Derek Jones <derek.jones@ellislab.com> | 2011-10-05 20:34:52 +0200 |
|---|---|---|
| committer | Derek Jones <derek.jones@ellislab.com> | 2011-10-05 20:34:52 +0200 |
| commit | 8ede1a2ecbb62577afd32996956c5feaf7ddf9b6 (patch) | |
| tree | 2e960ec3b416b477f40bb546371f2d486f4a22f0 /user_guide/helpers/form_helper.html | |
| parent | d1ecd5cd4ae6ab5d37df9fbda14b93977b9e743c (diff) | |
replacing the old HTML user guide with a Sphinx-managed user guide
Diffstat (limited to 'user_guide/helpers/form_helper.html')
| -rw-r--r-- | user_guide/helpers/form_helper.html | 484 |
1 files changed, 0 insertions, 484 deletions
diff --git a/user_guide/helpers/form_helper.html b/user_guide/helpers/form_helper.html deleted file mode 100644 index 511eeab89..000000000 --- a/user_guide/helpers/form_helper.html +++ /dev/null @@ -1,484 +0,0 @@ -<!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>Form Helper : 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 2.0.3</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> › -<a href="../index.html">User Guide Home</a> › -Form Helper -</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 <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td> -</tr> -</table> -<!-- END BREADCRUMB --> - -<br clear="all" /> - - -<!-- START CONTENT --> -<div id="content"> - - -<h1>Form Helper</h1> - -<p>The Form Helper file contains functions that assist in working with forms.</p> - - -<h2>Loading this Helper</h2> - -<p>This helper is loaded using the following code:</p> -<code>$this->load->helper('form');</code> - -<p>The following functions are available:</p> - - - -<h2>form_open()</h2> - -<p>Creates an opening form tag with a base URL <strong>built from your config preferences</strong>. It will optionally let you -add form attributes and hidden input fields, and will always add the attribute <kbd>accept-charset</kbd> based on the charset value in your config file.</p> - -<p>The main benefit of using this tag rather than hard coding your own HTML is that it permits your site to be more portable -in the event your URLs ever change.</p> - -<p>Here's a simple example:</p> - -<code>echo form_open('email/send');</code> - -<p>The above example would create a form that points to your base URL plus the "email/send" URI segments, like this:</p> - -<code><form method="post" accept-charset="utf-8" action="http://example.com/index.php/email/send" /></code> - -<h4>Adding Attributes</h4> - -<p>Attributes can be added by passing an associative array to the second parameter, like this:</p> - -<code> -$attributes = array('class' => 'email', 'id' => 'myform');<br /> -<br /> -echo form_open('email/send', $attributes);</code> - -<p>The above example would create a form similar to this:</p> - -<code><form method="post" accept-charset="utf-8" action="http://example.com/index.php/email/send" class="email" id="myform" /></code> - -<h4>Adding Hidden Input Fields</h4> - -<p>Hidden fields can be added by passing an associative array to the third parameter, like this:</p> - -<code> -$hidden = array('username' => 'Joe', 'member_id' => '234');<br /> -<br /> -echo form_open('email/send', '', $hidden);</code> - -<p>The above example would create a form similar to this:</p> - -<code><form method="post" accept-charset="utf-8" action="http://example.com/index.php/email/send"><br /> -<input type="hidden" name="username" value="Joe" /><br /> -<input type="hidden" name="member_id" value="234" /></code> - - -<h2>form_open_multipart()</h2> - -<p>This function is absolutely identical to the <dfn>form_open()</dfn> tag above except that it adds a multipart attribute, -which is necessary if you would like to use the form to upload files with.</p> - -<h2>form_hidden()</h2> - -<p>Lets you generate hidden input fields. You can either submit a name/value string to create one field:</p> - -<code>form_hidden('username', 'johndoe');<br /> -<br /> -// Would produce:<br /><br /> -<input type="hidden" name="username" value="johndoe" /></code> - -<p>Or you can submit an associative array to create multiple fields:</p> - -<code>$data = array(<br /> - 'name' => 'John Doe',<br /> - 'email' => 'john@example.com',<br /> - 'url' => 'http://example.com'<br /> - );<br /> -<br /> -echo form_hidden($data);<br /> -<br /> -// Would produce:<br /><br /> -<input type="hidden" name="name" value="John Doe" /><br /> -<input type="hidden" name="email" value="john@example.com" /><br /> -<input type="hidden" name="url" value="http://example.com" /></code> - - - - -<h2>form_input()</h2> - -<p>Lets you generate a standard text input field. You can minimally pass the field name and value in the first -and second parameter:</p> - -<code>echo form_input('username', 'johndoe');</code> - -<p>Or you can pass an associative array containing any data you wish your form to contain:</p> - -<code>$data = array(<br /> - 'name' => 'username',<br /> - 'id' => 'username',<br /> - 'value' => 'johndoe',<br /> - 'maxlength' => '100',<br /> - 'size' => '50',<br /> - 'style' => 'width:50%',<br /> - );<br /> -<br /> -echo form_input($data);<br /> -<br /> -// Would produce:<br /><br /> -<input type="text" name="username" id="username" value="johndoe" maxlength="100" size="50" style="width:50%" /></code> - -<p>If you would like your form to contain some additional data, like Javascript, you can pass it as a string in the -third parameter:</p> - -<code>$js = 'onClick="some_function()"';<br /> -<br /> -echo form_input('username', 'johndoe', $js);</code> - -<h2>form_password()</h2> - -<p>This function is identical in all respects to the <dfn>form_input()</dfn> function above -except that it uses the "password" input type.</p> - -<h2>form_upload()</h2> - -<p>This function is identical in all respects to the <dfn>form_input()</dfn> function above -except that it uses the "file" input type, allowing it to be used to upload files.</p> - -<h2>form_textarea()</h2> - -<p>This function is identical in all respects to the <dfn>form_input()</dfn> function above -except that it generates a "textarea" type. Note: Instead of the "maxlength" and "size" attributes in the above -example, you will instead specify "rows" and "cols".</p> - - -<h2>form_dropdown()</h2> - -<p>Lets you create a standard drop-down field. The first parameter will contain the name of the field, -the second parameter will contain an associative array of options, and the third parameter will contain the -value you wish to be selected. You can also pass an array of multiple items through the third parameter, and CodeIgniter will create a multiple select for you. Example:</p> - -<code>$options = array(<br /> - 'small' => 'Small Shirt',<br /> - 'med' => 'Medium Shirt',<br /> - 'large' => 'Large Shirt',<br /> - 'xlarge' => 'Extra Large Shirt',<br /> - );<br /> -<br /> -$shirts_on_sale = array('small', 'large');<br /> -<br /> -echo form_dropdown('shirts', $options, 'large');<br /> -<br /> -// Would produce:<br /> -<br /> -<select name="shirts"><br /> -<option value="small">Small Shirt</option><br /> -<option value="med">Medium Shirt</option><br /> -<option value="large" selected="selected">Large Shirt</option><br /> -<option value="xlarge">Extra Large Shirt</option><br /> -</select><br /> -<br /> -echo form_dropdown('shirts', $options, $shirts_on_sale);<br /> -<br /> -// Would produce:<br /> -<br /> -<select name="shirts" multiple="multiple"><br /> -<option value="small" selected="selected">Small Shirt</option><br /> -<option value="med">Medium Shirt</option><br /> -<option value="large" selected="selected">Large Shirt</option><br /> -<option value="xlarge">Extra Large Shirt</option><br /> -</select></code> - - -<p>If you would like the opening <select> to contain additional data, like an <kbd>id</kbd> attribute or JavaScript, you can pass it as a string in the -fourth parameter:</p> - -<code>$js = 'id="shirts" onChange="some_function();"';<br /> -<br /> -echo form_dropdown('shirts', $options, 'large', $js);</code> - -<p>If the array passed as $options is a multidimensional array, form_dropdown() will produce an <optgroup> with the array key as the label.</p> - -<h2>form_multiselect()</h2> - -<p>Lets you create a standard multiselect field. The first parameter will contain the name of the field, -the second parameter will contain an associative array of options, and the third parameter will contain the -value or values you wish to be selected. The parameter usage is identical to using <kbd>form_dropdown()</kbd> above, -except of course that the name of the field will need to use POST array syntax, e.g. <samp>foo[]</samp>.</p> - - -<h2>form_fieldset()</h2> - -<p>Lets you generate fieldset/legend fields.</p> -<code>echo form_fieldset('Address Information');<br /> -echo "<p>fieldset content here</p>\n";<br /> -echo form_fieldset_close(); -<br /> -<br /> -// Produces<br /> -<fieldset> -<br /> -<legend>Address Information</legend> -<br /> -<p>form content here</p> -<br /> -</fieldset></code> -<p>Similar to other functions, you can submit an associative array in the second parameter if you prefer to set additional attributes. </p> -<p><code>$attributes = array('id' => 'address_info', 'class' => 'address_info');<br /> - echo form_fieldset('Address Information', $attributes);<br /> -echo "<p>fieldset content here</p>\n";<br /> -echo form_fieldset_close(); <br /> -<br /> -// Produces<br /> -<fieldset id="address_info" class="address_info"> <br /> -<legend>Address Information</legend> <br /> -<p>form content here</p> <br /> -</fieldset></code></p> -<h2>form_fieldset_close()</h2> -<p>Produces a closing </fieldset> tag. The only advantage to using this function is it permits you to pass data to it - which will be added below the tag. For example:</p> -<code>$string = "</div></div>";<br /> -<br /> -echo form_fieldset_close($string);<br /> -<br /> -// Would produce:<br /> -</fieldset><br /> -</div></div></code> -<h2>form_checkbox()</h2> -<p>Lets you generate a checkbox field. Simple example:</p> -<code>echo form_checkbox('newsletter', 'accept', TRUE);<br /> -<br /> -// Would produce:<br /> -<br /> -<input type="checkbox" name="newsletter" value="accept" checked="checked" /></code> -<p>The third parameter contains a boolean TRUE/FALSE to determine whether the box should be checked or not.</p> -<p>Similar to the other form functions in this helper, you can also pass an array of attributes to the function:</p> - -<code>$data = array(<br /> - 'name' => 'newsletter',<br /> - 'id' => 'newsletter',<br /> - 'value' => 'accept',<br /> - 'checked' => TRUE,<br /> - 'style' => 'margin:10px',<br /> - );<br /> -<br /> -echo form_checkbox($data);<br /> -<br /> -// Would produce:<br /><br /> -<input type="checkbox" name="newsletter" id="newsletter" value="accept" checked="checked" style="margin:10px" /></code> - -<p>As with other functions, if you would like the tag to contain additional data, like JavaScript, you can pass it as a string in the -fourth parameter:</p> - -<code>$js = 'onClick="some_function()"';<br /> -<br /> - echo form_checkbox('newsletter', 'accept', TRUE, $js)</code> - - -<h2>form_radio()</h2> -<p>This function is identical in all respects to the <dfn>form_checkbox()</dfn> function above except that it uses the "radio" input type.</p> - - -<h2>form_submit()</h2> - -<p>Lets you generate a standard submit button. Simple example:</p> -<code>echo form_submit('mysubmit', 'Submit Post!');<br /> -<br /> -// Would produce:<br /> -<br /> -<input type="submit" name="mysubmit" value="Submit Post!" /></code> -<p>Similar to other functions, you can submit an associative array in the first parameter if you prefer to set your own attributes. - The third parameter lets you add extra data to your form, like JavaScript.</p> -<h2>form_label()</h2> -<p>Lets you generate a <label>. Simple example:</p> -<code>echo form_label('What is your Name', 'username');<br /> -<br /> -// Would produce: -<br /> -<label for="username">What is your Name</label></code> -<p>Similar to other functions, you can submit an associative array in the third parameter if you prefer to set additional attributes. </p> -<p><code>$attributes = array(<br /> - 'class' => 'mycustomclass',<br /> - 'style' => 'color: #000;',<br /> -);<br /> - echo form_label('What is your Name', 'username', $attributes);<br /> - <br /> -// Would produce: <br /> -<label for="username" class="mycustomclass" style="color: #000;">What is your Name</label></code></p> -<h2>form_reset()</h2> - -<p>Lets you generate a standard reset button. Use is identical to <dfn>form_submit()</dfn>.</p> - -<h2>form_button()</h2> - -<p>Lets you generate a standard button element. You can minimally pass the button name and content in the first and second parameter:</p> -<code> -echo form_button('name','content');<br /> -<br /> -// Would produce<br /> -<button name="name" type="button">Content</button> -</code> - -Or you can pass an associative array containing any data you wish your form to contain: -<code> -$data = array(<br /> - 'name' => 'button',<br /> - 'id' => 'button',<br /> - 'value' => 'true',<br /> - 'type' => 'reset',<br /> - 'content' => 'Reset'<br /> -);<br /> -<br /> -echo form_button($data);<br /> -<br /> -// Would produce:<br /> -<button name="button" id="button" value="true" type="reset">Reset</button> -</code> - -If you would like your form to contain some additional data, like JavaScript, you can pass it as a string in the third parameter: -<code> -$js = 'onClick="some_function()"';<br /><br /> -echo form_button('mybutton', 'Click Me', $js); -</code> - - -<h2>form_close()</h2> - -<p>Produces a closing </form> tag. The only advantage to using this function is it permits you to pass data to it -which will be added below the tag. For example:</p> - -<code>$string = "</div></div>";<br /> -<br /> -echo form_close($string);<br /> -<br /> -// Would produce:<br /> -<br /> -</form><br /> -</div></div></code> - - - - - -<h2>form_prep()</h2> - -<p>Allows you to safely use HTML and characters such as quotes within form elements without breaking out of the form. Consider this example:</p> - -<code>$string = 'Here is a string containing <strong>"quoted"</strong> text.';<br /> -<br /> -<input type="text" name="myform" value="<var>$string</var>" /></code> - -<p>Since the above string contains a set of quotes it will cause the form to break. -The form_prep function converts HTML so that it can be used safely:</p> - -<code><input type="text" name="myform" value="<var><?php echo form_prep($string); ?></var>" /></code> - -<p class="important"><strong>Note:</strong> If you use any of the form helper functions listed in this page the form -values will be prepped automatically, so there is no need to call this function. Use it only if you are -creating your own form elements.</p> - - -<h2>set_value()</h2> - -<p>Permits you to set the value of an input form or textarea. You must supply the field name via the first parameter of the function. -The second (optional) parameter allows you to set a default value for the form. Example:</p> - -<code><input type="text" name="quantity" value="<dfn><?php echo set_value('quantity', '0'); ?></dfn>" size="50" /></code> - -<p>The above form will show "0" when loaded for the first time.</p> - -<h2>set_select()</h2> - -<p>If you use a <dfn><select></dfn> menu, this function permits you to display the menu item that was selected. The first parameter -must contain the name of the select menu, the second parameter must contain the value of -each item, and the third (optional) parameter lets you set an item as the default (use boolean TRUE/FALSE).</p> - -<p>Example:</p> - -<code> -<select name="myselect"><br /> -<option value="one" <dfn><?php echo set_select('myselect', 'one', TRUE); ?></dfn> >One</option><br /> -<option value="two" <dfn><?php echo set_select('myselect', 'two'); ?></dfn> >Two</option><br /> -<option value="three" <dfn><?php echo set_select('myselect', 'three'); ?></dfn> >Three</option><br /> -</select> -</code> - - -<h2>set_checkbox()</h2> - -<p>Permits you to display a checkbox in the state it was submitted. The first parameter -must contain the name of the checkbox, the second parameter must contain its value, and the third (optional) parameter lets you set an item as the default (use boolean TRUE/FALSE). Example:</p> - -<code><input type="checkbox" name="mycheck" value="1" <dfn><?php echo set_checkbox('mycheck', '1'); ?></dfn> /><br /> -<input type="checkbox" name="mycheck" value="2" <dfn><?php echo set_checkbox('mycheck', '2'); ?></dfn> /></code> - - -<h2>set_radio()</h2> - -<p>Permits you to display radio buttons in the state they were submitted. This function is identical to the <strong>set_checkbox()</strong> function above.</p> - -<code><input type="radio" name="myradio" value="1" <dfn><?php echo set_radio('myradio', '1', TRUE); ?></dfn> /><br /> -<input type="radio" name="myradio" value="2" <dfn><?php echo set_radio('myradio', '2'); ?></dfn> /></code> - - - - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="file_helper.html">File Helper</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="html_helper.html">HTML Helper</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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