blocks|key|812833|text|当然有人会用性能更好的解决方案击败我，但这是一个简单的解决方案。您所要做的就是“散列”原始数组，方法是将它们的所有元素连接起来，然后跟踪哪些元素已添加到唯一输入集中。仅当原始数组的“散列”(拼接值)尚未添加到散列数组中时，才能添加该数组。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|812834|$aMain+=+array(
+array(+"Title",+50,+96+),
+array(+"Other+Title",+110,+225+),
+array(+"Title",+110,+225+),
+array(+"Title",+110,+225+),
);

$_aHashed+=+array();
$aUniqued+=+array();
foreach($aMain+as+$aUnhashed)+{
++++$sHash+=+implode('',+$aUnhashed);
++++if(!in_array($sHash,+$_aHashed))+{
++++++++$_aHashed[]+=+$sHash;
++++++++$aUniqued[]+=+$aUnhashed;
++++}
}

var_dump($aUniqued);|code-block|syntax|javascript|812835|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Surely someone will beat me w/ a better performing solution, but this is a simple one. All you do is 'hash' the original arrays by concatenating all their elements, then keeping track of which ones have been added to the set of unique inputs. You only add an original array if its 'hashed' (concatenated values) have not yet been added to the hash array.

<pre><code>$aMain = array(
 array( "Title", 50, 96 ),
 array( "Other Title", 110, 225 ),
 array( "Title", 110, 225 ),
 array( "Title", 110, 225 ),
);

$_aHashed = array();
$aUniqued = array();
foreach($aMain as $aUnhashed) {
 $sHash = implode('', $aUnhashed);
 if(!in_array($sHash, $_aHashed)) {
 $_aHashed[] = $sHash;
 $aUniqued[] = $aUnhashed;
 }
}

var_dump($aUniqued);
</code></pre>

blocks|key|4849621|text|$filtered+=+array();
foreach+($array+as+$entry)+{
++++$hash+=+md5(serialize($entry));
++++$filtered[$hash]+=+$entry;
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4849622|您甚至应该能够不使用md5来加速此过程。|unstyled|offset|length|style|CODE|4849623|entityMap^0|0|A|3|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>$filtered = array();
foreach ($array as $entry) {
 $hash = md5(serialize($entry));
 $filtered[$hash] = $entry;
}
</code></pre>

You should even be able to leave off the <code>md5</code> to speed up the process.

blocks|key|4849627|text|$array+=+array(array("Title",+50,+96),+array("Other+Title",+110,+225),+array("Title",+110,+225),+array("Title",+110,+225));

function+remove_duplicates_multi_array($array)+{

++++$serialized_arrays+=+array();
++++//+serialize+every+array
++++foreach+($array+as+$key=>$value)+{
++++++++$serialized_arrays[$key]+=+serialize($value);
++++}
++++//+use+array_unique+to+remove+duplicates
++++$unique_array+=+array_unique($serialized_arrays);

++++$multi_unique+=+array();

++++//unserialize+every+item+inside+the+array
++++foreach($unique_array+as+$key=>$value)+{
++++++++$multi_unique[$key]+=+unserialize($value);
++++}

++++return+$multi_unique;
}

var_dump(remove_duplicates_multi_array($array));|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4849628|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$array = array(array("Title", 50, 96), array("Other Title", 110, 225), array("Title", 110, 225), array("Title", 110, 225));

function remove_duplicates_multi_array($array) {

 $serialized_arrays = array();
 // serialize every array
 foreach ($array as $key=&gt;$value) {
 $serialized_arrays[$key] = serialize($value);
 }
 // use array_unique to remove duplicates
 $unique_array = array_unique($serialized_arrays);

 $multi_unique = array();

 //unserialize every item inside the array
 foreach($unique_array as $key=&gt;$value) {
 $multi_unique[$key] = unserialize($value);
 }

 return $multi_unique;
}

var_dump(remove_duplicates_multi_array($array));
</code></pre>

blocks|key|637667|text|试试这个..。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|637668|$input+=+array_map("unserialize",+array_unique(array_map("serialize",+$input)));|code-block|syntax|javascript|637669|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this.....

<pre><code>$input = array_map("unserialize", array_unique(array_map("serialize", $input)));
</code></pre>

How do I properly make an array like this one to be unique ? (and by unique I mean that only the array[3] is removed as it's a duplicate of array[2])

<pre><code>array(
 array( "Title", 50, 96 ),
 array( "Other Title", 110, 225 ),
 array( "Title", 110, 225 ),
 array( "Title", 110, 225 ),
)
</code></pre>

The only array I want in this case to be filtered out is the last one (in this case), but there is no particular order, and manual labour isn't going to cut it. (popping a targeted position). It is a rather large array, I have to think about performance here as well.

I could also arrange the data to be something like this:

<pre><code>array(
 array( "Title" =&gt; array( 50, 96 ), array(110, 225) )
 array( "Other Title", array( 110, 225 ) )
)
</code></pre>

But that doesn't help my cause this time.

There is no unique value in the array (alone), but the value combination for each second level array is unique.

Array almost unique criteria

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如何正确地使像这样的数组是唯一的？(说到唯一，我的意思是只删除array3，因为它是array2的副本)array( array( "Title", 50, 96 ), array( "Other Title", 110, 225 ), array( "Title", 110, 225 ), array( "Title...

问数组几乎唯一的标准
EN

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