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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 |
---|---|
2307 | /** |
2308 | * Filters the WordPress salt. |
2309 | * |
2310 | * @since 2.5.0 |
2311 | * |
2312 | * @param string $cached_salt Cached salt for the given scheme. |
2313 | * @param string $scheme Authentication scheme. Values include 'auth', |
2314 | * 'secure_auth', 'logged_in', and 'nonce'. |
2315 | */ |
2316 | return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); |
2317 | } |
2318 |
|
2319 | static $duplicated_keys; |
2320 | if ( null === $duplicated_keys ) { |
2321 | $duplicated_keys = array( 'put your unique phrase here' => true ); |
2322 | foreach ( array( 'AUTH', 'SECURE_AUTH', 'LOGGED_IN', 'NONCE', 'SECRET' ) as $first ) { |
2323 | foreach ( array( 'KEY', 'SALT' ) as $second ) { |
2324 | if ( ! defined( "{$first}_{$second}" ) ) { |
2325 | continue; |
Line | Code |
2362 | update_site_option( 'secret_key', $values['key'] ); |
2363 | } |
2364 | } |
2365 | $values['salt'] = hash_hmac( 'md5', $scheme, $values['key'] ); |
2366 | } |
2367 |
|
2368 | $cached_salts[ $scheme ] = $values['key'] . $values['salt']; |
2369 |
|
2370 | /** This filter is documented in wp-includes/pluggable.php */ |
2371 | return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); |
2372 | } |
2373 | endif; |
2374 |
|
2375 | if ( ! function_exists( 'wp_hash' ) ) : |
2376 | /** |
2377 | * Get hash of given string. |
2378 | * |
2379 | * @since 2.0.3 |
2380 | * |