1

I am so close I can feel it. I am trying to get an ad block to show up after say 2 paragraphs. Currently I am using the following code in my functions.php to put the adblock before the last paragraph.

I cannot for the life of me find the correct code to get this done.

function ads_added_above_last_p($text) {
if( is_single() ) :
    $ads_text = '<div class="wpselect_middle_content">My Ad Code Here</div>';
    if($pos1 = strrpos($text, '<p>')){
        $text1 = substr($text, 0, $pos1);
        $text2 = substr($text, $pos1);
        $text = $text1 . $ads_text . $text2;
    }
endif;
return $text;
}
add_filter('the_content', 'ads_added_above_last_p');

If I play with the second $text string and put $pos2 it works perfectly BUT it duplicates all of the text within the post.

Any help would be greatly appreciated.

3

I've found explode() to be useful when trying to break strings apart. This code creates an array of paragraph chunks, inserts the new block after two paragraphs and concatenates it back into a string for output.

function insert_ad_block( $text ) {

    if ( is_single() ) :

        $ads_text = '<div class="wpselect_middle_content">My Ad Code Here</div>';
        $split_by = "\n";
        $insert_after = 2; //number of paragraphs

        // make array of paragraphs
        $paragraphs = explode( $split_by, $text);

        // if array elements are less than $insert_after set the insert point at the end
        $len = count( $paragraphs );
        if (  $len < $insert_after ) $insert_after = $len;

        // insert $ads_text into the array at the specified point
        array_splice( $paragraphs, $insert_after, 0, $ads_text );

        // loop through array and build string for output
        foreach( $paragraphs as $paragraph ) {
            $new_text .= $paragraph; 
        }

        return $new_text;

    endif;

    return $text;

}
add_filter('the_content', 'insert_ad_block');
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