value="1" />
<?php
_e('When a new user is registered');
?>
</label>
</div>
</div>
<div class="form-row">
<div class="form-label"> <?php
_e('Username blacklist');
?>
</div>
<div class="form-controls">
<label id="username_blacklist" class="form-label-input">
<input type="text" id="username_blacklist" name="username_blacklist" value="<?php
echo osc_esc_html(osc_username_blacklist());
?>
" />
<span class="help-box"><?php
_e('List of terms not allowed in usernames, separated by commas');
?>
</span>
</label>
</div>
</div>
<div class="form-actions">
<input type="submit" id="save_changes" value="<?php
echo osc_esc_html(__('Save changes'));
?>
" class="btn btn-submit" />
</div>
/**
* Check is an username is blacklisted
*
* @param string $username
* @since 3.1
* @return boolean
*/
function osc_is_username_blacklisted($username) {
// Avoid numbers only usernames, this will collide with future users leaving the username field empty
if(preg_replace('|(\d+)|', '', $username)=='') {
return true;
}
$blacklist = explode(",", osc_username_blacklist());
foreach($blacklist as $bl) {
if(stripos($username, $bl)!==false) {
return true;
}
}
return false;
}