Source View: pre_{$taxonomy}_{$field}

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
2310            * Filter a taxonomy field before it is sanitized.
2311            *
2312            * The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
2313            * to the taxonomy slug and field name, respectively.
2314            *
2315            * @since 2.3.0
2316            *
2317            * @param mixed $value Value of the taxonomy field.
2318            */
2319           $value = apply_filters( "pre_{$taxonomy}_{$field}", $value );
2320
2321           // Back compat filters
2322           if ( 'slug' == $field ) {
2323                /**
2324                 * Filter the category nicename before it is sanitized.
2325                 *
2326                 * Use the pre_{$taxonomy}_{$field} hook instead.
2327                 *
2328                 * @since 2.0.3