本文介绍了从数组中删除重复项(阵列通过按键UNIC)的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
阵列
(
[0] =>排列
(
[文件] => /var/websites/example.com/assets/images/200px/1419050406e6648e1c766551a0ffc91380fd6ff3406002011-10-233750.jpg
[MD5] => 42479bee7a304d2318250de2ef1962a9
[URL] => http://example.com/assets/images/200px/1419050406e6648e1c766551a0ffc91380fd6ff3406002011-10-233750.jpg
) [1] =>排列
(
[文件] => /var/websites/example.com/assets/images/200px/21277792606e6648e1c766551a0ffc91380fd6ff3406002011-10-233750.jpg
[MD5] => 42479bee7a304d2318250de2ef1962a9
[URL] => http://example.com/assets/images/200px/21277792606e6648e1c766551a0ffc91380fd6ff3406002011-10-233750.jpg
)
)
我怎样才能从上面数组中删除MD5密钥副本?
解决方案
< PHP
$数据=阵列(
阵列(
'MD5'=> 'α',
某些=> '值',
)
阵列(
'MD5'=> 'α',
某些=> 其他的价值,
)
阵列(
'MD5'=> 喝彩,
某些=> 第三值',
)
);
//行走输入数组
$ _data =阵列();
的foreach($的数据作为V $){
如果(使用isset($ _数据[$ V ['MD5'])){
//发现重复
继续;
}
//记住的特定项目
$ _data [$ V ['MD5'] = $ V;
}
//如果您需要$ _data零基于阵列,otheriwse工作
$数据= array_values($ _数据);
Array
(
[0] => Array
(
[file] => /var/websites/example.com/assets/images/200px/1419050406e6648e1c766551a0ffc91380fd6ff3406002011-10-233750.jpg
[md5] => 42479bee7a304d2318250de2ef1962a9
[url] => http://example.com/assets/images/200px/1419050406e6648e1c766551a0ffc91380fd6ff3406002011-10-233750.jpg
)
[1] => Array
(
[file] => /var/websites/example.com/assets/images/200px/21277792606e6648e1c766551a0ffc91380fd6ff3406002011-10-233750.jpg
[md5] => 42479bee7a304d2318250de2ef1962a9
[url] => http://example.com/assets/images/200px/21277792606e6648e1c766551a0ffc91380fd6ff3406002011-10-233750.jpg
)
)
How can I remove md5 key duplicates from above array?
解决方案
<?php
$data = array(
array(
'md5' => 'alpha',
'some' => 'value',
),
array(
'md5' => 'alpha',
'some' => 'other value',
),
array(
'md5' => 'bravo',
'some' => 'third value',
),
);
// walk input array
$_data = array();
foreach ($data as $v) {
if (isset($_data[$v['md5']])) {
// found duplicate
continue;
}
// remember unique item
$_data[$v['md5']] = $v;
}
// if you need a zero-based array, otheriwse work with $_data
$data = array_values($_data);
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