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$a = array('a' => '1', 'b' => '2');
reset($a);
echo current($a);//1
$peoples=array('xm'=>'name','xb'=>'sex','mz'=>'nation','cs'=>'birth');
$arr = array_values($peoples);
echo $arr[0]."\n";
echo $arr[1];
$peoples=array('xm'=>'name','xb'=>'sex','mz'=>'nation','cs'=>'birth');
array_splice($peoples, 2);
<?php
//将数组的键值换掉.这样你就可以随意取值了.
$a=array(a=>'aaa',b=>'bbb',c=>'ccc',e=>'eee',f=>'fff');
foreach ($a as $k => $v) {
$b[]=$v;
}
print_r($b);
//结果
//Array ( [0] => aaa [1] => bbb [2] => ccc [3] => eee [4] => fff )
?>