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HomeBackend DevelopmentPHP Tutorial求教 多维数组中剔除空记录

求教 多维数组中删除空记录



想让空记录都删除掉,而且删除后,有的key不在了,要把key的顺利也重新排列
比如删除了 $arr['0']  $arr['3']   $arr['5']   ,那么整理后的可以是 $arr['0'] $arr['1'] $arr['2'] $arr['3'] $arr['4']$arr['5'].。。。。
当然图片是二维数组,就是想让删除后,后续的key顺序也跟上来


用过网上的方法都不好使
function array_no_empty($arr) {
if (is_array($arr)) {
foreach ( $arr as $k => $v ) {
if (empty($v)) unset($arr[$k]);
elseif (is_array($v)) {
$arr[$k] = array_no_empty($v);
}
}
}
return $arr;
}

这个是没用对吗? 老是说中间的  array_no_empty 未定义 什么的

有没有另外的方法 ,谢谢了
------解决思路----------------------
你的 array_no_empty 函数是可用的
但是有毛病:会返回空的成员数组

$a = array(<br />  array('a' => 0, 'b'=> ''),<br />  array('a' => 0, 'b'=> ''),<br />  array('a' => 1, 'b'=> '2'),<br />);<br />print_r(array_values(array_no_empty($a)));<br /><br />function array_no_empty($arr) {<br />  if (is_array($arr)) {<br />    foreach ( $arr as $k => $v ) {<br />      if (empty($v)) unset($arr[$k]);<br />      elseif (is_array($v)) {<br />        $arr[$k] = array_no_empty($v);<br />      }<br />    }<br />  }<br />  return $arr;<br />}
Array<br />(<br />    [0] => Array<br />        (<br />        )<br /><br />    [1] => Array<br />        (<br />        )<br /><br />    [2] => Array<br />        (<br />            [a] => 1<br />            [b] => 2<br />        )<br /><br />)<br /><br />

修改了一下
$a = array(<br />  array('a' => 0, 'b'=> ''),<br />  array('a' => 0, 'b'=> ''),<br />  array('a' => 1, 'b'=> '2'),<br />);<br />print_r(array_no_empty($a));<br /><br />function array_no_empty($arr) {<br />  if (is_array($arr)) {<br />    foreach ( $arr as $k => $v ) {<br />      if (empty($v)) unset($arr[$k]);<br />      elseif (is_array($v)) {<br />        $t = array_no_empty($v);<br />        if($t) $arr[$k] = $t;<br />        else unset($arr[$k]);<br />      }<br />    }<br />  }<br />  return $arr;<br />}
Array<br />(<br />    [2] => Array<br />        (<br />            [a] => 1<br />            [b] => 2<br />        )<br /><br />)<br /><br />

重排下标可用 array_values 函数
$a = array(<br />  array('a' => 0, 'b'=> ''),<br />  array('a' => 0, 'b'=> ''),<br />  array('a' => 1, 'b'=> '2'),<br />);<br />print_r(array_values(array_no_empty($a)));<br /><br />function array_no_empty($arr) {<br />  if (is_array($arr)) {<br />    foreach ( $arr as $k => $v ) {<br />      if (empty($v)) unset($arr[$k]);<br />      elseif (is_array($v)) {<br />        $t = array_no_empty($v);<br />        if($t) $arr[$k] = $t;<br />        else unset($arr[$k]);<br />      }<br />    }<br />  }<br />  return $arr;<br />}
Array<br />(<br />    [0] => Array<br />        (<br />            [a] => 1<br />            [b] => 2<br />        )<br /><br />)<br /><br />

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