Online PHP editor | output for Rn7kI

<?php function value($value) { return $value instanceof Closure ? $value() : $value; } function data_get($target, $key, $default = null) { if (is_null($key)) return $target; foreach (explode('.', $key) as $segment) { if (is_array($target)) { if ( ! array_key_exists($segment, $target)) { return value($default); } $target = $target[$segment]; } elseif (is_object($target)) { if ( ! isset($target->{$segment})) { return value($default); } $target = $target->{$segment}; } else { return value($default); } } return $target; } function renderTemplate($templateText, array $data, $allRequired = false) { return preg_replace_callback('/\{(?<name>[^\}]+)\}/', function ($match) use ($data, $allRequired) { $original = $match[0]; $name = $match['name']; $value = data_get($data, $name, function () use ($allRequired, $name, $original) { if ($allRequired) { throw new TemplateDataNotSetException("Template data '$name' not set and could not be resolved"); } else { return $original; } }); return (string) $value; }, $templateText); } renderTemplate('Podmínky Smlouvy o půjčku Výchozí text smlouvy. Jméno: {client.firstname} Příjmení: {client.lastname}', ['client' => ['firstname' => 'aaaaaaaaa']]);