/**
* A wrapper for json_encode function
* We need to pass valid UTF-8 string to json_encode, otherwise it may return NULL
*
* @param mixed
* @return string
*/
function evo_json_encode($a = false)
{
if (is_string($a)) {
// Convert to UTF-8
$a = current_charset_to_utf8($a);
} elseif (is_array($a)) {
// Recursively convert to UTF-8
array_walk_recursive($a, 'current_charset_to_utf8');
}
return json_encode($a);
}
/**
* A wrapper for json_encode function
* We need to pass valid UTF-8 string to json_encode, otherwise it may return NULL
*
* @param mixed
* @return string
*/
function evo_json_encode($a = false)
{
if (is_string($a)) {
// Convert to UTF-8
$a = current_charset_to_utf8($a);
} elseif (is_array($a)) {
// Recursively convert to UTF-8
array_walk_recursive($a, 'current_charset_to_utf8');
}
$result = json_encode($a);
if ($result === false) {
// If json_encode returns FALSE because of some error we should set correct json empty value as '[]' instead of false
$result = '[]';
}
return $result;
}