WordPress Francophone

add_rewrite_rule('mapagedetest/', 'index.php?pagename=animations', 'top');

function flush_rules_on_activation() {  
    global $wp,$wp_rewrite;
    $is_installed = get_option('theme_installed');
    if(!$is_installed) {
	 add_rewrite_rule('animations/([0-9]+)/?', 'index.php?pagename=animations&evt=$matches[1]', 'top');
         $wp_rewrite->flush_rules();
         add_option('theme_installed', true);
    }
}
add_action( 'init', 'flush_rules_on_activation' );

<?php

/**
 * Provides activation/deactivation hook for wordpress theme.
 *
 * Usage:
 * ----------------------------------------------
 * Include this file before this line.
 * ----------------------------------------------
 * function my_theme_activate() {
 *    // code to execute on theme activation
 * }
 * wp_register_theme_activation_hook('mytheme', 'my_theme_activate');
 *
 * function my_theme_deactivate() {
 *    // code to execute on theme deactivation
 * }
 * wp_register_theme_deactivation_hook('mytheme', 'my_theme_deactivate');
 * ----------------------------------------------
 *
 * @author Krishna Kant Sharma (http://www.krishnakantsharma.com)
 */

/**
 *
 * @desc registers a theme activation hook
 * @param string $code : Code of the theme. This can be the base folder of your theme. Eg if your theme is in folder 'mytheme' then code will be 'mytheme'
 * @param callback $function : Function to call when theme gets activated.
 */
function wp_register_theme_activation_hook($code, $function) {
  $optionKey="theme_is_activated_" . $code;
  if(!get_option($optionKey)) {
    call_user_func($function);
    update_option($optionKey , 1);
  }
}

/**
 * @desc registers deactivation hook
 * @param string $code : Code of the theme. This must match the value you provided in wp_register_theme_activation_hook function as $code
 * @param callback $function : Function to call when theme gets deactivated.
 */
function wp_register_theme_deactivation_hook($code, $function) {
  // store function in code specific global
  $GLOBALS["wp_register_theme_deactivation_hook_function" . $code]=$function;

  // create a runtime function which will delete the option set while activation of this theme and will call deactivation function provided in $function
  $fn=create_function('$theme', ' call_user_func($GLOBALS["wp_register_theme_deactivation_hook_function' . $code . '"]); delete_option("theme_is_activated_' . $code. '");');

  // add above created function to switch_theme action hook. This hook gets called when admin changes the theme.
  // Due to wordpress core implementation this hook can only be received by currently active theme (which is going to be deactivated as admin has chosen another one.
  // Your theme can perceive this hook as a deactivation hook.)
  add_action("switch_theme", $fn);
}

?>

wp_register_theme_activation_hook('NOM_DU_THEME', 'my_theme_activate'); // Hooks pour l'activation du thème
function my_theme_activate() {
  // code to execute on theme activation
}