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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 |
|---|---|
| 3255 | * Filters the human readable difference between two timestamps. |
| 3256 | * |
| 3257 | * @since 4.0.0 |
| 3258 | * |
| 3259 | * @param string $since The difference in human readable text. |
| 3260 | * @param int $diff The difference in seconds. |
| 3261 | * @param int $from Unix timestamp from which the difference begins. |
| 3262 | * @param int $to Unix timestamp to end the time difference. |
| 3263 | */ |
| 3264 | return apply_filters( 'human_time_diff', $since, $diff, $from, $to ); |
| 3265 | } |
| 3266 | |
| 3267 | /** |
| 3268 | * Generates an excerpt from the content, if needed. |
| 3269 | * |
| 3270 | * The excerpt word amount will be 55 words and if the amount is greater than |
| 3271 | * that, then the string ' […]' will be appended to the excerpt. If the string |
| 3272 | * is less than 55 words, then the content will be returned as is. |
| 3273 | * |