safe_var_dump()

function safe_var_dump(){
    static $cnt = 0;
    foreach(func_get_args() as $var){
        switch(true){
            case is_array($var):
                echo str_repeat("  ", $cnt) . "array(" . count($var) . ") {" . PHP_EOL;
                foreach($var as $key => $value){
                    echo str_repeat("  ", $cnt + 1) . "[" . (is_int($key) ? $key : '"' . $key . '"') . "]=>" . PHP_EOL;
                    ++$cnt;
                    safe_var_dump($value);
                    --$cnt;
                }
                echo str_repeat("  ", $cnt) . "}" . PHP_EOL;
                break;
            case is_int($var):
                echo str_repeat("  ", $cnt) . "int(" . $var . ")" . PHP_EOL;
                break;
            case is_float($var):
                echo str_repeat("  ", $cnt) . "float(" . $var . ")" . PHP_EOL;
                break;
            case is_bool($var):
                echo str_repeat("  ", $cnt) . "bool(" . ($var === true ? "true" : "false") . ")" . PHP_EOL;
                break;
            case is_string($var):
                echo str_repeat("  ", $cnt) . "string(" . strlen($var) . ") \"$var\"" . PHP_EOL;
                break;
            case is_resource($var):
                echo str_repeat("  ", $cnt) . "resource() of type (" . get_resource_type($var) . ")" . PHP_EOL;
                break;
            case is_object($var):
                echo str_repeat("  ", $cnt) . "object(" . get_class($var) . ")" . PHP_EOL;
                break;
            case is_null($var):
                echo str_repeat("  ", $cnt) . "NULL" . PHP_EOL;
                break;
        }
    }
}