Capitalise portfolio category string in Wordpress - php

Question

I'm trying to capitalise the Wordpress portfolio category string of "Corporate identity".
I have tried using this post: Capitalise every word of a string in PHP?, but have had no luck.
URL: http://utopia.gerandeklerk.com/
On the home page, hover over the first portfolio item (Steam Africa 2014), you will notice on the hover-state it lists the portfolio categories "Collateral" and "Corporate identity". The client wants wants it to display "Corporate Identity", as it does in the category filter menu above it.
I added the following string - can someone tell me where I went wrong?
$portfolio_category[] = ucwords(strtolower($term->slug)); // Capitalise Portfolio Category String
Below is the code from portfolio.php
<div class="filter-container">
<ul data-drop-content class="filter-list">
<li>All</li>
<?php
$terms = get_terms("portfolio_category");
foreach ( $terms as $term ) {
echo "<li><a href='#' data-filter='" . "." . strtolower($term->slug) . "'>" . $term->name . "</a></li>";
};
?>
</ul>
<span>| More filters</span> <img src="<?php echo get_template_directory_uri(); ?>/images/down-arrow.png">
<?php
$desired_width = 440;
$desired_height = 440;
if(is_tax()) { // is category page
$term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );
$args = array( 'post_type' => 'portfolio', 'portfolio_category' => $term -> slug, 'posts_per_page' => -1, 'orderby' => 'menu_order', 'order'=>'ASC' );
}
else { // is main portfolio page
$args = array( 'post_type' => 'portfolio', 'posts_per_page' => -1, 'orderby' => 'menu_order','order'=>'ASC' );
}
$loop = new WP_Query( $args );
if($loop->have_posts()) {
?>
<div class="portfolio-gallery group isotope">
<?php
//output the latest projects from the 'my_portfolio' custom post type
while ($loop->have_posts()) : $loop->the_post();
?>
<?php
$terms = get_the_terms( $post->ID, 'portfolio_category' );
if ( $terms && ! is_wp_error( $terms ) ) {
$portfolio_category = array();
foreach ( $terms as $term ) {
$portfolio_category[] = ucwords(strtolower($term->slug)); // Capitalise Portfolio Category String
}
$the_tax = join( " ", $portfolio_category );
} else {
$the_tax = "";
};
?>
<div class="portfolio-item <?php echo $the_tax; ?> portfolio-item-<?php the_ID(); ?>">
<a class="project-link" href="<?php the_permalink(); ?>">
<div class="thumb-container">
<div class="portfolio-thumb">
<?php if( get_field('gray_scale_image') ): ?>
<img src="<?php the_field('gray_scale_image'); ?>" class="grey-scale-image" />
<?php endif; ?>
<?php if( get_field('gray_scale_image') ): ?>
<img src="<?php the_field('colour_image'); ?>" class="colour-image" />
<?php endif; ?>
</div>
</div><!-- /.thumb-container -->
</a><!-- /.project-link -->
<h3 class="portfolio-category"><?php echo str_replace('-',' ',ucwords(join(", ", explode(" ", $the_tax))) ); ?></h3>
<h3 class="portfolio-title"><?php the_title(); ?></h3>
</div><!-- /.portfolio-item -->
<?php endwhile; ?>
</div><!-- .portfolio-gallery -->
<?php } // end if ?>

Answer 1

It goes wrong on this line
<h3 class="portfolio-category"><?php echo str_replace('-',' ',ucwords(join(", ", explode(" ", $the_tax))) ); ?></h3>
On this line you can try the following function as you mentioned earlier
$bar = ucwords(strtolower($bar)); // Hello World!
I Didn't tested the code