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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 |
---|---|
1235 | // Back compat filters |
1236 | if ( 'slug' == $field ) |
1237 | $value = apply_filters('pre_category_nicename', $value); |
1238 |
|
1239 | } else if ( 'rss' == $context ) { |
1240 | $value = apply_filters("term_${field}_rss", $value, $taxonomy); |
1241 | $value = apply_filters("${taxonomy}_${field}_rss", $value); |
1242 | } else { |
1243 | // Use display filters by default. |
1244 | $value = apply_filters("term_$field", $value, $term_id, $taxonomy, $context); |
1245 | $value = apply_filters("${taxonomy}_$field", $value, $term_id, $context); |
1246 | } |
1247 |
|
1248 | if ( 'attribute' == $context ) |
1249 | $value = esc_attr($value); |
1250 | else if ( 'js' == $context ) |
1251 | $value = esc_js($value); |
1252 |
|
1253 | return $value; |