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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 |
---|---|
2373 | /** |
2374 | * Filters the WordPress salt. |
2375 | * |
2376 | * @since 2.5.0 |
2377 | * |
2378 | * @param string $cached_salt Cached salt for the given scheme. |
2379 | * @param string $scheme Authentication scheme. Values include 'auth', |
2380 | * 'secure_auth', 'logged_in', and 'nonce'. |
2381 | */ |
2382 | return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); |
2383 | } |
2384 |
|
2385 | static $duplicated_keys; |
2386 | if ( null === $duplicated_keys ) { |
2387 | $duplicated_keys = array( 'put your unique phrase here' => true ); |
2388 | foreach ( array( 'AUTH', 'SECURE_AUTH', 'LOGGED_IN', 'NONCE', 'SECRET' ) as $first ) { |
2389 | foreach ( array( 'KEY', 'SALT' ) as $second ) { |
2390 | if ( ! defined( "{$first}_{$second}" ) ) { |
2391 | continue; |
Line | Code |
2428 | update_site_option( 'secret_key', $values['key'] ); |
2429 | } |
2430 | } |
2431 | $values['salt'] = hash_hmac( 'md5', $scheme, $values['key'] ); |
2432 | } |
2433 |
|
2434 | $cached_salts[ $scheme ] = $values['key'] . $values['salt']; |
2435 |
|
2436 | /** This filter is documented in wp-includes/pluggable.php */ |
2437 | return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); |
2438 | } |
2439 | endif; |
2440 |
|
2441 | if ( ! function_exists( 'wp_hash' ) ) : |
2442 | /** |
2443 | * Get hash of given string. |
2444 | * |
2445 | * @since 2.0.3 |
2446 | * |