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
1495            * Filters a taxonomy field before it is sanitized.
1496            *
1497            * The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
1498            * to the taxonomy slug and field name, respectively.
1499            *
1500            * @since 2.3.0
1501            *
1502            * @param mixed $value Value of the taxonomy field.
1503            */
1504           $value = apply_filters( "pre_{$taxonomy}_{$field}", $value );
1505
1506           // Back compat filters
1507           if ( 'slug' == $field ) {
1508                /**
1509                 * Filters the category nicename before it is sanitized.
1510                 *
1511                 * Use the {@see 'pre_$taxonomy_$field'} hook instead.
1512                 *
1513                 * @since 2.0.3