PHP: codieren infinity oder NaN-Nummern zu JSON?

Offenbar, infinity und NaN sind nicht Teil der JSON-Spezifikation, so dass dieser PHP-code:

$numbers = array();
$numbers ['positive_infinity'] = +INF;
$numbers ['negative_infinity'] = -INF;
$numbers ['not_a_number'] = NAN;
$array_print = print_r ($numbers, true);
$array_json = json_encode ($numbers);
echo "\nprint_r(): $array_print";
echo "\njson_encode(): $array_json";

Produziert dies:

PHP Warning:  json_encode(): double INF does not conform to the JSON spec, encoded as 0 in /home/septi/test.php on line 8
PHP Warning:  json_encode(): double -INF does not conform to the JSON spec, encoded as 0 in /home/septi/test.php on line 8
PHP Warning:  json_encode(): double NAN does not conform to the JSON spec, encoded as 0 in /home/septi/test.php on line 8

print_r(): Array
(
    [positive_infinity] => INF
    [negative_infinity] => -INF
    [not_a_number] => NAN
)

json_encode(): {"positive_infinity":0,"negative_infinity":0,"not_a_number":0}

Gibt es eine Möglichkeit, korrekt zu Kodieren, diese zahlen ohne das schreiben meine eigenen json_encode() Funktion? Vielleicht irgendein workaround?

InformationsquelleAutor Septagram | 2012-11-27

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