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[resolved] Get page content with format (7 posts)

  1. Jorge Jaral
    Member
    Posted 2 years ago #

    Hi everyone; I've got the following function from a plugin which is no longer under development, the author has been clear to state that he doesn't have the time to make any kind of modification to it.

    Things that way, the piece of code is as follows:

    function get_random_page($child_of = 0)
    {
    	$pages = &get_pages("child_of=".$child_of);
    	$pageInd = rand(0, count($pages) - 1);
    	echo $pages[$pageInd]->post_content;
    }

    I've just started to figure out what it does and how, and even as I'm not a coder it's clear enough to me that it's not rocket science.

    What I need this function to do is to output the original format of the page content, not as a single line of text without paragraphs (try it to see what am I talking about)

    I'll keep researching on how to tweak it, however any help will be welcome.

    Thanks in advance.

    JJ

  2. s_ha_dum
    Member
    Posted 2 years ago #

    Replace the last line of that function with echo apply_filters('the_content',$pages[$pageInd]->post_content);

    http://codex.wordpress.org/Function_Reference/apply_filters

  3. Jorge Jaral
    Member
    Posted 2 years ago #

    Thanks a lot s_ha_dum! You're such a Jedi Master.

    I used your contribution with an additional tweak to show also the title of the random page, the final code is as follows:

    /**
     * Function: get_random_page()
     * Author: Jedi Master S-Ha-Dum & the Padawan Jorge Jaral.
     * Task: Outputs a random page along with its title.
     * Description: $child_of is the page ID (number) from which you want to select the
     *                     random page. If $child_of is not set then it'll pick a random page from
     *                     all your pages.
     * Usage: To make it work you should insert in your template the instruction:
     *            <?php get_random_page(172); ?>
     *            where 172 is the parent page ID from which you want to get its child pages
     *            randomly to show inside a specific space, i.e. as a column on a static page.
     */
    function get_random_page($child_of = 0)
    {
    	$pages = &get_pages("child_of=".$child_of);
    	$pageInd = rand(0, count($pages) - 1);
    	echo apply_filters('the_title',$pages[$pageInd]->post_title);
    	echo apply_filters('the_content',$pages[$pageInd]->post_content);
    }

    I'm also trying to find out how to get only a specific number of words extending this function, if you can share a way to do it I will feel like a bully... but fine :D

    Thanks for your immaculate help.

    JJ

  4. s_ha_dum
    Member
    Posted 2 years ago #

    Splitting a string on 'words' is pretty easy. Use explode or preg_split for more complicated cases. However, you can have trouble with html or other markup. Those native PHP function don't care about markup. WordPress has wp_trim_excerpt though. :)

  5. Jorge Jaral
    Member
    Posted 2 years ago #

    Hello Jedi S-Ha-Dum; I'm having a hard time figuring out how to trim the output form this function to a specific number of words, let's say 500, however I've made a modification to allow it to show the title with the corresponding permalink :D

    function get_random_page($child_of=0)
    {
    	$pages = &get_pages("child_of=".$child_of);
    	$pageInd = rand(0, count($pages) - 1);
    	$ga_title = apply_filters('the_title',$pages[$pageInd]->post_title);
    	$ga_permalink = get_permalink($pages[$pageInd]);
    	echo '<a href="';
    	echo $ga_permalink;
    	echo '">';
    	echo $ga_title;
    	echo '</a>';
    	echo apply_filters('the_content',$pages[$pageInd]->post_content);
    }

    I've found a function from SofaRider, but it didn't worked at all, or maybe I was just too dumb to make it work, anyway I'll keep trying.

    Have a great week and greetings from Mexico.

    JJ

  6. Jorge Jaral
    Member
    Posted 2 years ago #

    Eureka! (I got it!)

    The following function gets a random page AND trims the content to a specific number of words passed as a parameter AND not counting HTML tags, just pure 'the_content' words, there are some really minor bugs that somebody could help to fix (try it to find out)

    This function is very useful when you don't want to mess with categories or tags to get content from static pages to fill out columns in a dynamic front page; the output includes the page title plus the permalink and a customizable 'Keep reading →' link at the bottom

    /**
     * Function: get_random_page_trim()
     * Author: Jedi Master S-Ha-Dum & the Padawan Jorge Jaral.
     * Task: Outputs a random page along with its title.
     * Description: $child_of is the page ID (number) from which you want to select the
     *                     random page. If $child_of is not set then it'll pick a random page from
     *                     all your pages.
     * Usage: To make it work you should insert in your template the instruction:
     *            <?php get_random_page_trim(172, 200); ?>
     *            where 172 is the parent page ID from which you want to get its child pages
     *            randomly to show inside a specific space, i.e. as a column on a static page;
     *            and 200 is the number of words that you want to obtain form the page post.
     */
    function get_random_page_trim($child_of = 0, $all_words = 45)
    {
    	$allowed_tags = array( 'a', 'abbr', 'b', 'blockquote', 'b', 'cite', 'code', 'div', 'em', 'fon', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'i', 'img', 'label', 'i', 'p', 'pre', 'span', 'strong', 'title', 'ul', 'ol', 'li', 'object', 'embed', 'param' );
    	$pages = &get_pages("child_of=".$child_of);
    	$pageInd = rand(0, count($pages) - 1);
    	$ga_title = apply_filters('the_title',$pages[$pageInd]->post_title);
    	$ga_permalink = get_permalink($pages[$pageInd]);
    	echo '<a href="';
    	echo $ga_permalink;
    	echo '">';
    	echo $ga_title;
    	echo '</a>';
    	$ga_content = apply_filters('the_content',$pages[$pageInd]->post_content);
    	if($ga_content != '' && $all_words > 0)
    	{
    		// process allowed tags
    		$allowed_tags = '<' . implode( '><', $allowed_tags ) . '>';
    		$ga_content = str_replace( ' ]]>', ' ]]>', $ga_content );
    		$ga_content = strip_tags( $ga_content, $allowed_tags );
    		// exclude HTML from counting words
    		if( $all_words > count( preg_split( '/[\s]+/', strip_tags( $ga_content ), -1 ) ) ) return $ga_content;
    		// count all
    		$all_chunks = preg_split( '/([\s]+)/', $ga_content, -1, PREG_SPLIT_DELIM_CAPTURE );
    		$ga_content = '';
    		$count_words = 0;
    		$enclosed_by_tag = false;
    		foreach( $all_chunks as $chunk )
    		{
    			// is tag opened?
    			if( 0 < preg_match( '/<[^>]*$/s', $chunk ) ) $enclosed_by_tag = true;
    			elseif( 0 < preg_match( '/>[^<]*$/s', $chunk ) ) $enclosed_by_tag = false;
    			// get entire word
    			if( !$enclosed_by_tag && '' != trim( $chunk ) && substr( $chunk, -1, 1 ) != '>' ) $count_words ++;
    			$ga_content .= $chunk;
    			if( $count_words >= $all_words && !$enclosed_by_tag ) break;
    		}
    		// native WordPress check for unclosed tags
    		$ga_content = force_balance_tags( $ga_content );
    	}
    	echo $ga_content;
    	echo '<a href="';
    	echo $ga_permalink;
    	echo '">Sigue leyendo &rarr;</a>'; //This means 'Keep reading' in spanish :)
    }

    Thanks to Jedi Master S-Ha-Dum (see s_ha_dum above) and SofaRider for the code, as of me, I'm just an assembler.

    JJ

  7. Jorge Jaral
    Member
    Posted 2 years ago #

    I think this issue is now resolved, so the I will close de post, if somebody wants to modify the code I'd appreciate if you let me know.

    JJ

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