Adding a div class or id inside the_content()

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I’m trying to create an advertisement block to be placed on a single post (single.php) such that the div class or id is left aligned and the post content wrapped around it. I checked the single.php and this is the only piece of code I notice is what displays the post. 

<div class="entry entry-content">
                <?php the_content(); ?>
                <?php wp_link_pages( array( 'before' => '<div class="page-link">' . __( 'Pages:', 'themejunkie' ), 'after' => '</div>' ) ); ?>

I tried adding the code both above the ‘entry-content’ div and also after the_content, but with both methods it either displays the div either at the beginning or at the end of the post content.

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Can someone tell me which files to look into in order to add this?

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3 comments

  1. You have to put your advertisement block just before <?php the_content(); ?> in a separate div-layer and add some css to it. E.g.

    single.php

    <div class="entry entry-content">
    <div class="advertisement">
        <p>Your advertisement</p>
    </div>

    <?php the_content(); ?>
</div>

    CSS

    div.advertisement {
    float: left;
    width: 150px;
    padding: 0px 10px 10px 0px;
}

  2. Why not just hook into the the_content filter hook, and append your code to the_content()? e.g.:

    function mytheme_content_ad( $content ) {
    $myadcode = '<div class="someclas">';
    $myadcode .= 'some string with the ad code';
    $myadcode .= '</div>';

    $filteredcontent = $myadcode . $content;

    return $filteredcontent;
}
add_filter( 'the_content', 'mytheme_content_ad' );

    You may need to make the function a bit fancier than this, but this should convey the general idea.

  3. Using the example to add classes to p tag & h2 tag.

    <?php
function replace_content($text_content)
{
    if (is_page()) {
        $text = array(
            '<p>' => '<p class="text-danger">',
            '<h2>' => '<h2 class="h2">',
        );
    }
    $text_content = str_ireplace(array_keys($text), $text, $text_content);
    return $text_content;
}
add_filter('the_content', 'replace_content');
?>