- var_dump: documentation ( source)
- version_compare: documentation ( source)
- json_encode: documentation ( source)
<?php
$options = null;
if (version_compare(PHP_VERSION, '5.3.3') >= 0) {
$options |= JSON_NUMERIC_CHECK;
}
if (version_compare(PHP_VERSION, '5.4.0') >= 0) {
$options |= JSON_UNESCAPED_UNICODE;
}
$data = json_encode(array('ая' => '19'), $options);
var_dump($data);