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@ideag
Last active Feb 23, 2022
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A very simple implementation of WordPress front-end login form. Just put this to your theme's functions.php file. Usage: use [tiny_login] shortcode or get_tiny_login_form()/the_tiny_login_form() template tags Arguments: one (optional) argument 'redirect': pass url where to redirect after successful login (default: false); Localization: replace '…
<?php
// a simple WordPress frontend login implementation
// written by Arūnas Liuiza | tinyStudio | wp.tribuna.lt
// Usage: use [tiny_login] shortcode or get_tiny_login_form()/the_tiny_login_form() template tags
// Arguments: one (optional) argument 'redirect': pass url where to redirect after successful login (default: false);
// Localization: replace 'theme' with your text domain string.
// login action hook - catches form submission and acts accordingly
add_action('init','tiny_login');
function tiny_login() {
global $tiny_error;
$tiny_error = false;
if (isset($_POST['username']) && isset($_POST['password'])) {
$creds = array();
$creds['user_login'] = $_POST['username'];
$creds['user_password'] = $_POST['password'];
//$creds['remember'] = false;
$user = wp_signon( $creds );
if ( is_wp_error($user) ) {
$tiny_error = $user->get_error_message();
} else {
if (isset($_POST['redirect']) && $_POST['redirect']) {
wp_redirect($_POST['redirect']);
}
}
}
}
// shows error message
function the_tiny_error() {
echo get_tiny_error();
}
function get_tiny_error() {
global $tiny_error;
if ($tiny_error) {
$return = $tiny_error;
$tiny_error = false;
return $return;
} else {
return false;
}
}
// shows login form (or a message, if user already logged in)
function get_tiny_login_form($redirect=false) {
if (!is_user_logged_in()) {
$return = "<form action=\"\" method=\"post\" class=\"tiny_form tiny_login\">\r\n";
$error = get_tiny_error();
if ($error)
$return .= "<p class=\"error\">{$error}</p>\r\n";
$return .= " <p>
<label for=\"tiny_username\">".__('Username','theme')."</label>
<input type=\"text\" id=\"tiny_username\" name=\"username\" value=\"".(isset($_POST['username'])?$_POST['username']:"")."\"/>
</p>\r\n";
$return .= " <p>
<label for=\"tiny_password\">".__('Password','theme')."</label>
<input type=\"password\" id=\"tiny_password\" name=\"password\"/>
</p>\r\n";
if ($redirect)
$return .= " <input type=\"hidden\" name=\"redirect\" value=\"{$redirect}\">\r\n";
$return .= " <button type=\"submit\">".__('Login','theme')."</button>\r\n";
$return .= "</form>\r\n";
} else {
$return = "<p>".__('User is already logged in','theme')."</p>";
}
return $return;
}
function the_tiny_login_form($redirect=false) {
echo get_tiny_login_form($redirect);
}
// adds a handy [tiny_login] shortcode to use in posts/pages
add_shortcode('tiny_login','tiny_login_shortcode');
function tiny_login_shortcode ($atts,$content=false) {
$atts = shortcode_atts(array(
'redirect' => false
), $atts);
return get_tiny_login_form($atts['redirect']);
}
?>
@MDWolinski
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MDWolinski commented Jan 30, 2018

Just a note, you should probably have an exit; after the wp_redirect on line 24.

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