php数组转json
$array = Array('a'=>'one01', 'b'=>'two01', 'c'=>'three01');
echo json_encode( $array );
## 结果输出
{"a":"one01","b":"two01","c":"three01"}
## php json转数组
$json= {"a":"one01","b":"two01","c":"three01"}
echo json_decode( $json );
## 结果输出
Array('a'=>'one01', 'b'=>'two01', 'c'=>'three01');