How to use complex curly braces in external template file-CodePudding

I am trying to interpolate a string from an external file but I am having issues using complex curly braces. The variables do not populate as expected? If i take the code from the external template file it successfully returns a value for each variable.

index.php

function getIncludeContents($included_file_path, $post){
    
    if ( !file_exists( __DIR__ . $file ) ) {
        return 'nofile';
    }
    
    if ( is_array( $post ) ){
        extract( $post );
    }
    
    ob_start(); 
    include($included_file_path);
    return ob_get_clean();
}

$navigation = getIncludeContents('layouts/test.php', $post);
var_dump($navigation);

test.php

<div id="post-{$post['id']}"></div>

this returns... '<div id="post-${post['id']}"></div>'

when it should return... '<div id="post-201"></div>

any ideas why? thanks

CodePudding user response：

Try this way

<div id="post-<?php echo $post['id']?>"></div>

CodePudding user response：

Since test.php doesn't have <?php, it's being treated as fixed text, not PHP code to execute. It needs echo statements to echo variables, or you can use the short echo tag.

<div id="post-<?= $post['id'] ?>"></div>