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关于array_walk 为什么是这样解决思路

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WBOYOriginal
2016-06-13 13:45:57831browse

关于array_walk 为什么是这样

PHP code
<!--

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-->$kk=array(' chen ','wei ',' kyle');
    $kk=array_walk($kk, create_function('&$item','$item = trim($item);'));
    print_r($kk);


为什么打印结果是1呢?


------解决方案--------------------
array_walk($kk, create_function('&$item','$item = trim($item);'));
print_r($kk);


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