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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 |
|---|---|
| 1914 | * The dynamic portions of the filter name, $taxonomy, and $field, refer |
| 1915 | * to the taxonomy slug and taxonomy field, respectively. |
| 1916 | * |
| 1917 | * @since 2.3.0 |
| 1918 | * |
| 1919 | * @param mixed $value Value of the taxonomy field. |
| 1920 | * @param int $term_id Term ID. |
| 1921 | * @param string $context Context to retrieve the taxonomy field value. |
| 1922 | */ |
| 1923 | $value = apply_filters( "{$taxonomy}_{$field}", $value, $term_id, $context ); |
| 1924 | } |
| 1925 | |
| 1926 | if ( 'attribute' == $context ) |
| 1927 | $value = esc_attr($value); |
| 1928 | else if ( 'js' == $context ) |
| 1929 | $value = esc_js($value); |
| 1930 | |
| 1931 | return $value; |
| 1932 | } |