wordpress
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2:14 am, September 27, 2024
Wordpress Use the settings API
PHP
<?php
/*
* Add the admin page
*/
add_action('admin_menu', 'wpse61431_admin_page');
function wpse61431_admin_page(){
add_menu_page('wpse61431 Settings', 'wpse61431', 'administrator', 'wpse61431-settings', 'wpse61431_admin_page_callback');
}
/*
* Register the settings
*/
add_action('admin_init', 'wpse61431_register_settings');
function wpse61431_register_settings(){
//this will save the option in the wp_options table as 'wpse61431_settings'
//the third parameter is a function that will validate your input values
register_setting('wpse61431_settings', 'wpse61431_settings', 'wpse61431_settings_validate');
}
function wpse61431_settings_validate($args){
//$args will contain the values posted in your settings form, you can validate them as no spaces allowed, no special chars allowed or validate emails etc.
if(!isset($args['wpse61431_email']) || !is_email($args['wpse61431_email'])){
//add a settings error because the email is invalid and make the form field blank, so that the user can enter again
$args['wpse61431_email'] = '';
add_settings_error('wpse61431_settings', 'wpse61431_invalid_email', 'Please enter a valid email!', $type = 'error');
}
//make sure you return the args
return $args;
}
//Display the validation errors and update messages
/*
* Admin notices
*/
add_action('admin_notices', 'wpse61431_admin_notices');
function wpse61431_admin_notices(){
settings_errors();
}
//The markup for your plugin settings page
function wpse61431_admin_page_callback(){ ?>
<div class="wrap">
<h2>wpse61431 Settings</h2>
<form action="options.php" method="post"><?php
settings_fields( 'wpse61431_settings' );
do_settings_sections( __FILE__ );
//get the older values, wont work the first time
$options = get_option( 'wpse61431_settings' ); ?>
<table class="form-table">
<tr>
<th scope="row">Email</th>
<td>
<fieldset>
<label>
<input name="wpse61431_settings[wpse61431_email]" type="text" id="wpse61431_email" value="<?php echo (isset($options['wpse61431_email']) && $options['wpse61431_email'] != '') ? $options['wpse61431_email'] : ''; ?>"/>
<br />
<span class="description">Please enter a valid email.</span>
</label>
</fieldset>
</td>
</tr>
</table>
<input type="submit" value="Save" />
</form>
</div>
<?php }
?>
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