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webghostx/wp-content-filter-anchor-heading.php

Last active July 22, 2020 19:22
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  1. webghostx revised this gist Jul 22, 2020. 1 changed file with 2 additions and 2 deletions.
    4 changes: 2 additions & 2 deletions wp-content-filter-anchor-heading.php
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    Original file line number Diff line number Diff line change
    @@ -1,9 +1,9 @@
    <?php
    /**
    * Wordpress Content Filter
    * Automatisch html-Anker Elemente in überschriften setzen
    * Automatisch html-Anker Elemente in Überschriften setzen
    *
    * Im ersten Abschnitt (edit) können Einstellungen vorgenommen werden.
    * Im ersten Abschnitt (edit bis /edit) können Einstellungen vorgenommen werden.
    *
    * @author usysto https://usysto.net/wordpress-content-filter-anker-links-in-ueberschriften-ohne-plugin
    * @copyright free
  2. webghostx renamed this gist Jul 22, 2020. 1 changed file with 0 additions and 0 deletions.
    0 ... Anker-Links in Überschriften ohne Plugin → wp-content-filter-anchor-heading.php
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    File renamed without changes.
  3. webghostx renamed this gist Jul 22, 2020. 1 changed file with 0 additions and 0 deletions.
    0 ... Anker-Links in Überschriften ohne Plugin → ... Anker-Links in Überschriften ohne Plugin
    View file
    File renamed without changes.
  4. webghostx revised this gist Jul 22, 2020. No changes.
  5. webghostx created this gist Jul 22, 2020.
    37 changes: 37 additions & 0 deletions Wordpress Content-Filter: Anker-Links in Überschriften ohne Plugin
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,37 @@
    <?php
    /**
    * Wordpress Content Filter
    * Automatisch html-Anker Elemente in überschriften setzen
    *
    * Im ersten Abschnitt (edit) können Einstellungen vorgenommen werden.
    *
    * @author usysto https://usysto.net/wordpress-content-filter-anker-links-in-ueberschriften-ohne-plugin
    * @copyright free
    */
    add_filter('the_content', function ($content) {

    # edit
    $h_numbers = '2'; // um zB. H2,H3 und H5 zu erwischen, einfach '235' eingeben
    $insert_link = true; // verlinktes Icon einfügen true/false
    $link_attr = 'class="h-link"'; // Attribute für den Link setzen
    $icon_html = '<i class="fa fa-link"></i>'; // html für Icon zB. Font Awesome
    # /edit

    $regex = '/(\<h[' . $h_numbers . '](.*?))\>(.*)(<\/h[' . $h_numbers . ']>)/i';
    $content = preg_replace_callback(
    $regex,
    function ($headings) use ($insert_link, $icon_html, $link_attr) {

    if (!stripos($headings[0], 'id=')) {
    $heading_link = '';
    $id = sanitize_title(remove_accents($headings[3]));
    if ($insert_link)
    $heading_link = '<a href="#' . $id . '" ' . $link_attr . '>' . $icon_html . '</a> ';
    $headings[0] = $headings[1] . $headings[2] . ' id="' . $id . '">' . $heading_link . $headings[3] . $headings[4];
    }
    return $headings[0];
    },
    $content
    );
    return $content;
    }, 9);