Calling PHP function doesn't work in index.php - php

Question

I have a function I wrote in my functions.php page for a gallery to display on certain pages. It displays on custom templates, but now I need it to display on index.php Here is the code from my functions.php file:
function min_get_page_gallery( $echo = true) {
global $post;
$show_gallery = get_post_meta($post->ID, 'min_gallery-show', true);
if ( empty($show_gallery) ) {
return;
}
$gallery = get_post_meta($post->ID, 'min_image_advanced', false);
ob_start();
?>
<div class="gallery" id="gallery-<?php echo $post->ID; ?>">
<button class="gallery-move-left"><i class="fa fa-arrow-circle-left" aria-hidden="true"></i></button>
<div class="image_container clearfix">
<?php
$count = count($gallery);
$num = ceil($count / 3);
//$width_container = $num * 100;
//$width_row = 100 / $num;
//echo '<div class="gallery_inner" style="width:' . $width_container . '%;">';
echo '<div class="gallery_inner">';
for ( $i = 0; $i < $count; $i++) {
if ( $i % 3 == 0 ) {
//echo '<div class="row" style="width: ' . $width_row . '%;">';
echo '<div class="row'. (0 == $i ? ' active': ' inactive') .'">';
}
echo '<div class="col-sm-4 img_container' . (0 == $i ? ' active': ' inactive') . '">';
echo wp_get_attachment_image($gallery[$i], 'thumb-gallery');
echo '</div>';
if ( $i % 3 == 2 || ($i+1) == $count) {
echo '</div>';
}
}
echo '</div>';
?>
</div>
<button class="gallery-move-right"><i class="fa fa-arrow-circle-right" aria-hidden="true"></i></button>
</div>
<?php
$return = ob_get_contents();
ob_end_clean();
if ( $echo ) {
echo $return;
} else {
return $return;
}
}
That code works like a charm. Here is where I call it as min_get_page_gallery(); in awards.php where it works flawlessly:
<?php
/* Template Name: Awards Page Template */
get_header(); ?>
<div class="container" id="block-no-sidebar">
<h1><?php the_title(); ?></h1>
<div id="award-list">
<?php echo min_get_awards(); ?>
</div>
<div class="row">
<?php min_get_page_gallery(); ?>
</div>
<?php min_get_page_tabs(); ?>
</div>
<?php get_footer(); ?>
Now finally, I try to add the same function call of min_get_page_gallery(); in my index.php file like this:
<?php
// Silence is golden.
if ( ! defined ( 'ABSPATH' ) ) {
exit;
}
?>
<?php get_header(); ?>
<style class="take-to-head">
#block-main-content-with-sidebar { background: #ffffff; }
</style>
<div class="container" id="block-main-content-with-sidebar">
<div class="row">
<div class="col-sm-8">
<?php
if ( have_posts() ) : while ( have_posts() ) : the_post();
l('block-' . get_post_type());
endwhile; else:
l('block-none' );
endif;
?>
</div>
<div class="col-sm-4">
<?php l('block-sidebar'); ?>
</div>
</div>
<div class="row">
<?php min_get_page_gallery(); ?>
</div>
</div>
Is there something I'm missing??

Answer 1

Try to describe in more detail, what is wrong with your index.php? Is some output when load input.php, or blank page?
Is correctly defined ABSPATH? If not, your script exit on the beginning.
For more specific awareness of flow through the script, try to write there some echo
E.g.
<div class="row">
<?php echo "Before calling min_get_page_gallery()" ?>
<?php min_get_page_gallery(); ?>
<?php echo "After calling min_get_page_gallery()" ?>
</div>
Then look, if you can see the messages from echo before and after calling the desired function.

Answer 2

Ok, so I had to do some tweaking to get the meta to show in functions.php I added these lines:
$pagemain = is_page();
and then:
if ( $pagemain == is_page( 35393 ) ) {
$meta[] = array(
'id' => 'imageupload',
'post_types' => array( 'page'),
'context' => 'normal',
'priority' => 'high',
'title' => __( 'Image Gallery', 'min' ),
'fields' => array(
array(
'name' => __( 'Show', 'min' ),
'id' => "{$prefix}_gallery-show",
'desc' => __( '', 'meta-box' ),
'type' => 'checkbox',
'clone' => false,
),
array(
'id' => "{$prefix}_image_advanced",
'name' => __( 'Image Advanced', 'min' ),
'type' => 'image_advanced',
// Delete image from Media Library when remove it from post meta?
// Note: it might affect other posts if you use same image for multiple posts
'force_delete' => false,
// Maximum image uploads
//'max_file_uploads' => 2,
),
),
);
}