blocks|key|1108304|text|我不是一个php程序员，但我可以说，在C#中，你不能在遍历数组时修改它。您可能希望尝试使用foreach循环来标识要删除的元素或元素的索引，然后在循环之后删除这些元素。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1108305|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I'm not much of a php programmer, but I can say that in C# you cannot modify an array while iterating through it. You may want to try using your foreach loop to identify the index of the element, or elements to remove, then delete the elements after the loop.

blocks|key|1323412|text|foreach($array+as+$elementKey+=>+$element)+{
++++foreach($element+as+$valueKey+=>+$value)+{
++++++++if($valueKey+==+'id'+&&+$value+==+'searched_value'){
++++++++++++//delete+this+particular+object+from+the+$array
++++++++++++unset($array[$elementKey]);
++++++++}+
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1323413|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>foreach($array as $elementKey =&gt; $element) {
 foreach($element as $valueKey =&gt; $value) {
 if($valueKey == 'id' &amp;&amp; $value == 'searched_value'){
 //delete this particular object from the $array
 unset($array[$elementKey]);
 } 
 }
}
</code></pre>

blocks|key|1108348|text|看起来你的unset语法是无效的，缺乏重新索引可能会在未来带来麻烦。请参阅：the+section+on+PHP+arrays|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1108349|正确的语法如上所示。还要记住array-values用于重新索引，这样您就永远不会索引之前删除的内容。|1108350|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/language.types.array.php|1|http://www.php.net/manual/en/function.array-values.php^0|12|P|0|0|E|C|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

It looks like your syntax for unset is invalid, and the lack of reindexing might cause trouble in the future. See: <a href="http://php.net/manual/en/language.types.array.php" rel="nofollow noreferrer" title="PHP arrays.">the section on PHP arrays</a>. 

The correct syntax is shown above. Also keep in mind <a href="http://www.php.net/manual/en/function.array-values.php" rel="nofollow noreferrer" title="reindexing arrays">array-values</a> for reindexing, so you don't ever index something you previously deleted.

blocks|key|1323460|text|这应该能起到作用……|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1323461|reset($array);
while+(list($elementKey,+$element)+=+each($array))+{
++++while+(list($key,+$value2)+=+each($element))+{
++++++++if($key+==+'id'+&&+$value+==+'searched_value')+{
++++++++++++unset($array[$elementKey]);
++++++++}
++++}
}|code-block|syntax|javascript|1323462|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|$]]

This should do the trick.....

<pre><code>reset($array);
while (list($elementKey, $element) = each($array)) {
 while (list($key, $value2) = each($element)) {
 if($key == 'id' &amp;&amp; $value == 'searched_value') {
 unset($array[$elementKey]);
 }
 }
}
</code></pre>

blocks|key|1323472|text|您还可以在foreach值上使用引用：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1323473|foreach($array+as+$elementKey+=>+&$element)+{
++++//+$element+is+the+same+than+&$array[$elementKey]
++++if+(isset($element['id'])+and+$element['id']+==+'searched_value')+{
++++++++unset($element);
++++}
}|code-block|syntax|javascript|1323474|entityMap^0|5|7|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You can also use references on <code>foreach</code> values:

<pre><code>foreach($array as $elementKey =&gt; &amp;$element) {
 // $element is the same than &amp;$array[$elementKey]
 if (isset($element['id']) and $element['id'] == 'searched_value') {
 unset($element);
 }
}
</code></pre>

blocks|key|1108415|text|注意主要的答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1108416|使用|1108417|[['id'=>1,'cat'=>'vip']
,['id'=>2,'cat'=>'vip']
,['id'=>3,'cat'=>'normal']|code-block|syntax|javascript|1108418|并调用该函数|1108419|foreach($array+as+$elementKey+=>+$element)+{
++++foreach($element+as+$valueKey+=>+$value)+{
++++++++if($valueKey+==+'cat'+&&+$value+==+'vip'){
++++++++++++//delete+this+particular+object+from+the+$array
++++++++++++unset($array[$elementKey]);
++++++++}+
++++}
}|1108420|它返回|1108421|[2=>['id'=>3,'cat'=>'normal']|1108422|而不是|1108423|[0=>['id'=>3,'cat'=>'normal']|1108424|这是因为unset不会对数组重新编制索引。|1108425|它会重新编制索引。(如果我们需要)|1108426|$result=[];
foreach($array+as+$elementKey+=>+$element)+{
++++foreach($element+as+$valueKey+=>+$value)+{
++++++++$found=false;
++++++++if($valueKey+===+'cat'+&&+$value+===+'vip'){
++++++++++++$found=true;
++++++++++++$break;
++++++++}+
++++++++if(!$found)+{
+++++++++++$result[]=$element;
++++++++}
++++}
}|1108427|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|14|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|15|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|16|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|17|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|18|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|T|5|F|7|1A|8|@]|9|@]|A|$G|H]]|$1|U|3|V|5|6|7|1B|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|F|7|1D|8|@]|9|@]|A|$G|H]]|$1|10|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]]|11|$]]

Be careful with the main answer.

with

<pre><code>[['id'=&gt;1,'cat'=&gt;'vip']
,['id'=&gt;2,'cat'=&gt;'vip']
,['id'=&gt;3,'cat'=&gt;'normal']
</code></pre>

and calling the function

<pre><code>foreach($array as $elementKey =&gt; $element) {
 foreach($element as $valueKey =&gt; $value) {
 if($valueKey == 'cat' &amp;&amp; $value == 'vip'){
 //delete this particular object from the $array
 unset($array[$elementKey]);
 } 
 }
}
</code></pre>

it returns

<pre><code>[2=&gt;['id'=&gt;3,'cat'=&gt;'normal']
</code></pre>

instead of

<pre><code>[0=&gt;['id'=&gt;3,'cat'=&gt;'normal']
</code></pre>

It is because unset does not re-index the array.

It reindexes. (if we need it)

<pre><code>$result=[];
foreach($array as $elementKey =&gt; $element) {
 foreach($element as $valueKey =&gt; $value) {
 $found=false;
 if($valueKey === 'cat' &amp;&amp; $value === 'vip'){
 $found=true;
 $break;
 } 
 if(!$found) {
 $result[]=$element;
 }
 }
}
</code></pre>

I iterate through an array of objects and want to delete one of the objects based on it's 'id' property, but my code doesn't work.

<pre><code>foreach($array as $element) {
 foreach($element as $key =&gt; $value) {
 if($key == 'id' &amp;&amp; $value == 'searched_value'){
 //delete this particular object from the $array
 unset($element);//this doesn't work
 unset($array,$element);//neither does this
 } 
 }
}
</code></pre>

Any suggestions. Thanks.

How to delete object from array inside foreach loop?

我遍历了一个对象数组，想要根据它的'id‘属性删除其中一个对象，但我的代码无法工作。foreach($array as $element) {    foreach($element as $key => $value) {        if($key == 'id' && $value == 'searched_v...

问如何在foreach循环中从数组中删除对象？
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