log to the JS console from PHP

clogs.php

// use this anywhere in your php app
function console_log() {
    $messages = func_get_args();
    if(!$GLOBALS['cLogs']){
        $GLOBALS['cLogs'] = array();
    }
    $GLOBALS['cLogs'] = array_merge($GLOBALS['cLogs'], $messages);
}

// use this at the bottom of the global template (or wherever you can insert some js)
// probably worth adding a check for dev/prod env, ie. (strpos($env, 'dev') == -1)
function print_logs(){
    if (!$GLOBALS['cLogs']) {
        return false;
    } else {
        echo "<script>";
        foreach($GLOBALS['cLogs'] as $k => $l) {
            if (is_string($l)) {
                echo "console.log('$l');";
            } else {
                echo "console.log(" . json_encode($l, JSON_PRETTY_PRINT) . ");";
            }
        }
        echo "</script>";
    }
}