apply_filters( ‘the_category’, string $thelist, string $separator, string $parents )

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   Hyppolite T. 11 months ago

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   Filter the list of categories to simply do a text replacement and return the result.

   function wpdocs_category_filter( $categories ) {
       return str_replace( 'Tools', 'All tools', $categories );
   }
   add_filter( 'the_category', 'wpdocs_category_filter' );