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   源码介绍

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<?php
//合并三个数组：
$a = array(1 => 'this is 1', 3 => 'this is 3', 5 => 'this is 5',);
$b = array(2 => 'this is 2', 4 => 'this is 4', 6 => 'this is 6',);
$c = array(7 => 'this is 7', 8 => 'this is 8', 9 => 'this is 9',);