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
1494            * Filters a taxonomy field before it is sanitized.
1495            *
1496            * The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
1497            * to the taxonomy slug and field name, respectively.
1498            *
1499            * @since 2.3.0
1500            *
1501            * @param mixed $value Value of the taxonomy field.
1502            */
1503           $value = apply_filters( "pre_{$taxonomy}_{$field}", $value );
1504
1505           // Back compat filters
1506           if ( 'slug' == $field ) {
1507                /**
1508                 * Filters the category nicename before it is sanitized.
1509                 *
1510                 * Use the {@see 'pre_$taxonomy_$field'} hook instead.
1511                 *
1512                 * @since 2.0.3