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I'm working on a function to wrap word-matches* in [wiki]-shortcode tags. I suspect the best method is to use add_filter() on the_content, and parse using RegEx in preg_replace_callback_array(), but that's beyond me.

Here's a sample of post content: 

This <i>Gymnopus dryophilus</i>, itself saprotrophic rather than mycorrhizal, is infected with <i>Syzygospora mycetophila</i>. mycorrhizal, mycorrhiza,'mycorrhizae','mycorrhizas', Mycorrhizal, Mycorrhiza,Mycorrhizae, Mycorrhizas

Here's a sample array of terms to be matched: 

$arr = array('mycorrhizal','mycorrhiza','mycorrhizae','mycorrhizas','Mycorrhizal','Mycorrhiza','Mycorrhizae','Mycorrhizas','Gymnopus dryophilus');

Here's the code I have for trying to do it: 

function add_wikitips($content) {
    if( is_single() && in_the_loop() && is_main_query() ) {
        $arr = array('mycorrhizal','mycorrhiza','mycorrhizae','mycorrhizas','Mycorrhizal','Mycorrhiza','Mycorrhizae','Mycorrhizas','Gymnopus dryophilus');

        for ($i = 0; $i < count($arr); $i++) {
            $content = str_replace($arr[$i], '[wiki]'.$arr[$i].'[/wiki]', $content);
        }
    }
    return $content;
}
add_filter('the_content', 'add_wikitips');

Here's the garbley output:

* I need RegEx matching to exclude match-instances where there are already manually added shortcodes, e.g., [wiki title="Mycorrhiza"]Mycorrhizality[/wiki]. If that counted as a match, the filtered content would be 

[wiki title="Mycorrhiza"][wiki]Mycorrhiza[/wiki]lity[/wiki]

Which is no good (I think something like that might be happening to generate the garbled output above).

Thanks for any help!

本文标签： filtersHow to wrap patternmatches from thecontent in wikishortcode tags

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