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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 |
|---|---|
| 180 | /** |
| 181 | * Filters text with its translation. |
| 182 | * |
| 183 | * @since 2.0.11 |
| 184 | * |
| 185 | * @param string $translation Translated text. |
| 186 | * @param string $text Text to translate. |
| 187 | * @param string $domain Text domain. Unique identifier for retrieving translated strings. |
| 188 | */ |
| 189 | $translation = apply_filters( 'gettext', $translation, $text, $domain ); |
| 190 | |
| 191 | /** |
| 192 | * Filters text with its translation for a domain. |
| 193 | * |
| 194 | * The dynamic portion of the hook, `$domain`, refers to the text domain. |
| 195 | * |
| 196 | * @since 5.5.0 |
| 197 | * |
| 198 | * @param string $translation Translated text. |