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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.
| Line | Code |
|---|---|
| 943 | * wp_nonce_tick() - Get the time-dependent variable for nonce creation |
| 944 | * |
| 945 | * A nonce has a lifespan of two ticks. Nonces in their second tick may be updated, e.g. by autosave. |
| 946 | * |
| 947 | * @since 2.5 |
| 948 | * |
| 949 | * @return int |
| 950 | */ |
| 951 | function wp_nonce_tick() { |
| 952 | $nonce_life = apply_filters('nonce_life', 86400); |
| 953 | |
| 954 | return ceil(time() / ( $nonce_life / 2 )); |
| 955 | } |
| 956 | endif; |
| 957 | |
| 958 | if ( !function_exists('wp_verify_nonce') ) : |
| 959 | /** |
| 960 | * wp_verify_nonce() - Verify that correct nonce was used with time limit |
| 961 | * |