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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 1251 | // If the hash is still md5... |
| 1252 | if ( strlen($hash) <= 32 ) { |
| 1253 | $check = ( $hash == md5($password) ); |
| 1254 | if ( $check && $user_id ) { |
| 1255 | // Rehash using new hash. |
| 1256 | wp_set_password($password, $user_id); |
| 1257 | $hash = wp_hash_password($password); |
| 1258 | } |
| 1259 | |
| 1260 | return apply_filters('check_password', $check, $password, $hash, $user_id); |
| 1261 | } |
| 1262 | |
| 1263 | // If the stored hash is longer than an MD5, presume the |
| 1264 | // new style phpass portable hash. |
| 1265 | if ( empty($wp_hasher) ) { |
| 1266 | require_once( ABSPATH . 'wp-includes/class-phpass.php'); |
| 1267 | // By default, use the portable hash from phpass |
| 1268 | $wp_hasher = new PasswordHash(8, TRUE); |
| 1269 | } |
| 1270 | |
| 1271 | $check = $wp_hasher->CheckPassword($password, $hash); |
| 1272 | |
| 1273 | return apply_filters('check_password', $check, $password, $hash, $user_id); |
| 1274 | } |
| 1275 | endif; |
| 1276 | |
| 1277 | if ( !function_exists('wp_generate_password') ) : |
| 1278 | /** |
| 1279 | * Generates a random password drawn from the defined set of characters. |
| 1280 | * |
| 1281 | * @since 2.5 |
| 1282 | * |