一、json_encode() 對變量進行JSON編碼
示例:
$book = array('a'=>'xiyouji','b'=>'sanguo','c'=>'shuihu','d'=>'hongloumeng'); $json = json_encode($book); echo $json;
瀏覽器打印出的結(jié)果如下:
{"a":"xiyouji","b":"sanguo","c":"shuihu","d":"hongloumeng"}
二、json_decode() 對JSON數(shù)據(jù)進行解碼,轉(zhuǎn)換為PHP變量
示例:
$book = array('a'=>'xiyouji','b'=>'sanguo','c'=>'shuihu','d'=>'hongloumeng'); $json = json_encode($book); $array = json_decode($json,TRUE); $obj = json_decode($json); var_dump($array); var_dump($obj);
瀏覽器打印出的結(jié)果如下:
array(4) { ["a"]=> string(7) "xiyouji" ["b"]=> string(6) "sanguo" ["c"]=> string(6) "shuihu" ["d"]=> string(11) "hongloumeng" }
object(stdClass)#2 (4) { ["a"]=> string(7) "xiyouji" ["b"]=> string(6) "sanguo" ["c"]=> string(6) "shuihu" ["d"]=> string(11) "hongloumeng" }
兩個結(jié)果看起來沒多大區(qū)別,但調(diào)用里面的元素時,array和obj的方式是不同的?! ?/p>
$book = array('a'=>'xiyouji','b'=>'sanguo','c'=>'shuihu','d'=>'hongloumeng'); $json = json_encode($book); $array = json_decode($json,TRUE); $obj = json_decode($json); var_dump($array['b']);//調(diào)用數(shù)組元素 echo 'br/>'; var_dump($obj->c);//調(diào)用對象元素
打印結(jié)果如下:
string(6) "sanguo" string(6) "shuihu"
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