php code//已知数组$info=array();//输出print_r($info);//结果array( [0] => array ( [name] => 8.gif [md5] => b68d88dbdfc9d0af2e0bbd85a4ccd28f [savename] => 20120602080557_452.gif [size] => 1 [type] => image/gif [originalheight] => 39 [originalwidth] => 31 ) [1] => array ( [name] => 9.gif [md5] => 4988f85ebebf82f56d70eeaf39a67016 [savename] => 20120602080557_776.gif [size] => 2 [type] => image/gif [originalheight] => 39 [originalwidth] => 31 ))
我要想取出对应的 savename 的值, 请问该如何下手
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php codeforeach($info as $value){foreach($value as $getvalue){echo $getvalue['savename'];}}
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foreach($info as $v) $temp[]=$v['savename'];
print_r($temp);
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看来name是类似于唯一字段了，想取出来和name对应的savename字段。如果这样的话，需要接收你给的name字段值，当你用post表单提交的吧。
二维数组。一个foreach判断就够了
php code$a=array( array ( 'name' => '8.gif', 'md5' => 'b68d88dbdfc9d0af2e0bbd85a4ccd28f' , 'savename' => '20120602080557_452.gif', 'size' => 1 , 'type' => 'image/gif' , 'originalheight' => 39 , 'originalwidth' => 31 ),array( 'name' => '9.gif' , 'md5' => '4988f85ebebf82f56d70eeaf39a67016', 'savename' => '20120602080557_776.gif' , 'size' => 2 , 'type' => 'image/gif' , 'originalheight' => 39 , 'originalwidth' => 31 , )) ;foreach ($a as $k=>$v) {if ($v['name']===$_post['yourname']){//令$_post['yourname']=‘8.gif’，将输出$v ['savename']=20120602080557_452.gifecho '$v ['.'savename'.']='.$v ['savename'] .'
' ; } } ?>