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<?php $json = ‘{"a":1,"b":2,"c":3,"d":4,"e":5}‘; var_dump(json_decode($json)); var_dump(json_decode($json, true)); ?>
object(stdClass)#1 (5) { ["a"] => int(1) ["b"] => int(2) ["c"] => int(3) ["d"] => int(4) ["e"] => int(5) } array(5) { ["a"] => int(1) ["b"] => int(2) ["c"] => int(3) ["d"] => int(4) ["e"] => int(5) }
可以看出 json_decode($data,true)输出的一个关联数组,由此可知json_decode($data）输出的是对象,而json_decode("$arr",true)是把它强制生成PHP关联数组.
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原文地址：http://www.cnblogs.com/hyh123/p/5558297.html
