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<?php
/**
 * A template loader which accepts arguments.
 *
 * @param string       $slug
 * @param string|array $name
 * @param array        $args Arguments to pass.
 * @param bool         $echo If false, return string.
 * @param string       $glue Default is '-'. You can specify '/' which means directory separator.
 *
 * @return null|string
 */
function hammeplate( $slug, $name = '', $args = [], $echo = true, $glue = '-' ) {
	$file = [];
	if ( ! $name ) {
		$file[] = $slug;
	} elseif ( is_array( $name ) ) {
		for ( $i = count( $name ); $i > 0; $i -- ) {
			$file[] = $slug . $glue . implode( $glue, array_slice( $name, 0, $i ) );
		}
		$file[] = $slug;
	} else {
		$file[] = $slug . $glue . $name;
		$file[] = $slug;
	}
	$dirs = [ get_stylesheet_directory() ];
	if ( is_child_theme() ) {
		$dirs[] = get_template_directory();
	}
	$path = '';
	foreach ( $file as $f ) {
		foreach ( $dirs as $dir ) {
			$p = $dir . DIRECTORY_SEPARATOR . $f . '.php';
			if ( file_exists( $p ) ) {
				$path = $p;
				break 2;
			}
		}
	}
	if ( ! $path ) {
		return $echo ? null : '';
	}
	// Enable vars.
	global $posts, $post, $wp_query, $wp_rewrite, $wpdb;
	if ( $args ) {
		extract( $args );
	}
	if ( $echo ) {
		include $path;
	} else {
		ob_start();
		include $path;
		$output = ob_get_contents();
		ob_end_clean();

		return $output;
	}
}