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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 |
|---|---|
| 2455 | * Filters whether the plaintext password matches the encrypted password. |
| 2456 | * |
| 2457 | * @since 2.5.0 |
| 2458 | * |
| 2459 | * @param bool $check Whether the passwords match. |
| 2460 | * @param string $password The plaintext password. |
| 2461 | * @param string $hash The hashed password. |
| 2462 | * @param string|int $user_id User ID. Can be empty. |
| 2463 | */ |
| 2464 | return apply_filters( 'check_password', $check, $password, $hash, $user_id ); |
| 2465 | } |
| 2466 | |
| 2467 | // If the stored hash is longer than an MD5, |
| 2468 | // presume the new style phpass portable hash. |
| 2469 | if ( empty( $wp_hasher ) ) { |
| 2470 | require_once ABSPATH . WPINC . '/class-phpass.php'; |
| 2471 | // By default, use the portable hash from phpass. |
| 2472 | $wp_hasher = new PasswordHash( 8, true ); |
| 2473 | } |
| 2474 | |
| 2475 | $check = $wp_hasher->CheckPassword( $password, $hash ); |
| 2476 | |
| 2477 | /** This filter is documented in wp-includes/pluggable.php */ |
| 2478 | return apply_filters( 'check_password', $check, $password, $hash, $user_id ); |
| 2479 | } |
| 2480 | endif; |
| 2481 | |
| 2482 | if ( ! function_exists( 'wp_generate_password' ) ) : |
| 2483 | /** |
| 2484 | * Generates a random password drawn from the defined set of characters. |
| 2485 | * |
| 2486 | * Uses wp_rand() is used to create passwords with far less predictability |
| 2487 | * than similar native PHP functions like `rand()` or `mt_rand()`. |