What potential issue could arise from trying to output the name of a temporary cache file during the last call to the add_css function?

The potential issue that could arise from trying to output the name of a temporary cache file during the last call to the add_css function is that the cache file might not have been created yet at that point in the code execution. To solve this issue, you can modify the add_css function to return the name of the cache file instead of trying to output it directly. 

<?php
function add_css($file) {
    // code to create temporary cache file
    $cache_file = "cache_file.css";
    
    return $cache_file;
}

// Call the add_css function and store the returned cache file name
$cache_file = add_css("styles.css");

// Output the name of the cache file
echo $cache_file;
?>

Keywords

PHP caching add_css function temporary file output error

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