blocks|key|470107|text|$arr+=+array_merge(array($arr[0]),array_map('intval',+array_slice($arr,+1)));|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|470108|输出：|unstyled|470109|array(5)+{
++[0]=>
++string(2)+"id"
++[1]=>
++int(2147483647)
++[2]=>
++int(2147483647)
++[3]=>
++int(2147483647)
++[4]=>
++int(2147483647)
}|470110|演示。|offset|length|470111|entityMap|0|LINK|mutability|MUTABLE|url|https://eval.in/64201^0|0|0|0|0|3|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|V|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|F|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

<pre><code>$arr = array_merge(array($arr[0]),array_map('intval', array_slice($arr, 1)));
</code></pre>

Output:

<pre><code>array(5) {
 [0]=&gt;
 string(2) "id"
 [1]=&gt;
 int(2147483647)
 [2]=&gt;
 int(2147483647)
 [3]=&gt;
 int(2147483647)
 [4]=&gt;
 int(2147483647)
}
</code></pre>

<a href="https://eval.in/64201" rel="nofollow">Demo.</a>

blocks|key|2863318|text|array_walk($array,+function+(&$value)+{
++++if+(ctype_digit($value))+{
++++++++$value+=+(int)+$value;
++++}
});
var_export($array);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2863319|输出：|unstyled|2863320|array+(
++0+=>+'id',
++1+=>+6086220176,
++2+=>+6542925762,
++3+=>+6623113406,
++4+=>+6702782948,
)|2863321|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>array_walk($array, function (&amp;$value) {
 if (ctype_digit($value)) {
 $value = (int) $value;
 }
});
var_export($array);
</code></pre>

Output:

<pre><code>array (
 0 =&gt; 'id',
 1 =&gt; 6086220176,
 2 =&gt; 6542925762,
 3 =&gt; 6623113406,
 4 =&gt; 6702782948,
)
</code></pre>

blocks|key|470103|text|$array+=+array($array[0])+%2B+array_map('intval',+$array);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|470104|(如果您想避免使用foreach循环)|unstyled|470105|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>$array = array($array[0]) + array_map('intval', $array);
</code></pre>

(if you want to avoid a foreach loop)

blocks|key|2863287|text|php是松散类型的，您不需要键入强制类型。它会为你做的。但是，如果您想显式地这样做，您可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2863288|$c+=+count($array)-1;
for+($n=1;$n<$c;$n%2B%2B)+{
++$array[$n]+=+(int)+$array[$n];
}|code-block|syntax|javascript|2863289|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|$]]

php is loosely typed, you don't need to type cast it. It will do it for you. But if you want to explicitly do this, you can do like this:

<pre><code>$c = count($array)-1;
for ($n=1;$n&lt;$c;$n++) {
 $array[$n] = (int) $array[$n];
}
</code></pre>

blocks|key|470076|text|foreach($array+as+$key+=>+$val){
++++if($key+!==+0){
++++++++$array[$key]+=+(int)+$val;
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|470077|或|unstyled|470078|foreach($array+as+$key+=>+$val){
++++if(is_numeric($val)){
++++++++$array[$key]+=+(int)+$val;
++++}
}|470079|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>foreach($array as $key =&gt; $val){
 if($key !== 0){
 $array[$key] = (int) $val;
 }
}
</code></pre>

or

<pre><code>foreach($array as $key =&gt; $val){
 if(is_numeric($val)){
 $array[$key] = (int) $val;
 }
}
</code></pre>

blocks|key|471419|text|如果所有的值都是int：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|471420|<?php
$arr+=+array(
++[0]+=>+"id"
++[1]+=>+"6086220176"
++[2]+=>+"6542925762"
++[3]+=>+"6623113406"
++[4]+=>+"6702782948"
);

$arr+=+array_map(function($var)+{
++++//+Your+'id'+is+not+an+int+and+will+not+be+converted.
++++return+is_numeric($var)+?+(int)$var+:+$var;
},+$arr);|code-block|syntax|javascript|471421|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|$]]

If all you values are int :

<pre><code>&lt;?php
$arr = array(
 [0] =&gt; "id"
 [1] =&gt; "6086220176"
 [2] =&gt; "6542925762"
 [3] =&gt; "6623113406"
 [4] =&gt; "6702782948"
);

$arr = array_map(function($var) {
 // Your 'id' is not an int and will not be converted.
 return is_numeric($var) ? (int)$var : $var;
}, $arr);
</code></pre>

blocks|key|2863349|text|foreach($array+as+$k+=>+$v){
++if($k+==+0)+continue;
++$array[$k]+=+is_int($v)+?+intval($v)+:+$v;+//+if+it's+not+convertible+to+int+it+keeps+the+value
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2863350|或者如果您有非数字索引。|unstyled|2863351|$skipped+=+false;
foreach($array+as+$k+=>+$v){
++if($skipped+===+false){
++++$skipped+=+true;
++++continue;
++}
++$array[$k]+=+is_int($v)+?+intval($v)+:+$v;
}|2863352|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>foreach($array as $k =&gt; $v){
 if($k == 0) continue;
 $array[$k] = is_int($v) ? intval($v) : $v; // if it's not convertible to int it keeps the value
}
</code></pre>

or if you have non-numeric indexes

<pre><code>$skipped = false;
foreach($array as $k =&gt; $v){
 if($skipped === false){
 $skipped = true;
 continue;
 }
 $array[$k] = is_int($v) ? intval($v) : $v;
}
</code></pre>

blocks|key|2863406|text|本页中尚未提到的另一种技术是将数组编码为带有JSON_NUMERIC_CHECK标志的json字符串，以便将数值适当地转换为整数或浮点数。然后将生成的字符串解码回数组。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2863407|这种方法不要求开发人员预先知道值的键/索引，也不需要对每个值进行有条件的检查，以确定该值是否为数字值。简单地说，作为一种通用策略，它是高度可移植的.|2863408|这种技术可以方便地容纳多个级别的数组。|2863409|代码：(演示)|2863410|$array+=+[
++"id",
++"6086220176",
++"6542925762",
++"6623113406",
++"6702782948",
++['333',+[['444']]]
];

var_export(
++++json_decode(
++++++++json_encode(
++++++++++++$array,
++++++++++++JSON_NUMERIC_CHECK
++++++++),
++++++++true
++++)
);|code-block|syntax|javascript|2863411|输出：|2863412|array+(
++0+=>+'id',
++1+=>+6086220176,
++2+=>+6542925762,
++3+=>+6623113406,
++4+=>+6702782948,
++5+=>+
++array+(
++++0+=>+333,
++++1+=>+
++++array+(
++++++0+=>+
++++++array+(
++++++++0+=>+444,
++++++),
++++),
++),
)|2863413|entityMap|0|LINK|mutability|MUTABLE|url|https://3v4l.org/rHFHv^0|M|I|0|0|0|4|2|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|16|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|17|8|@]|D|@$9|18|A|19|1|1A]]|E|$]]|$1|L|3|M|5|N|7|1B|8|@]|D|@]|E|$O|P]]|$1|Q|3|R|5|6|7|1C|8|@]|D|@]|E|$]]|$1|S|3|T|5|N|7|1D|8|@]|D|@]|E|$O|P]]|$1|U|3|-4|5|6|7|1E|8|@]|D|@]|E|$]]]|V|$W|$5|X|Y|Z|E|$10|11]]]]

Another technique not yet mentioned on this page is to encode the array as a json string with the <code>JSON_NUMERIC_CHECK</code> flag so that numeric values are appropriately cast as integers or floats. Then decode the generated string back to an array.
This approach does not require the developer to know in advance the key/index of the value nor require a conditional check on each value to see if the value is numeric. In simple terms, it is highly portable as a general-use strategy.
This technique conveniently accommodates arrays with more than one level.
Code: (<a href="https://3v4l.org/rHFHv" rel="nofollow noreferrer">Demo</a>)
<pre><code>$array = [
 &quot;id&quot;,
 &quot;6086220176&quot;,
 &quot;6542925762&quot;,
 &quot;6623113406&quot;,
 &quot;6702782948&quot;,
 ['333', [['444']]]
];

var_export(
 json_decode(
 json_encode(
 $array,
 JSON_NUMERIC_CHECK
 ),
 true
 )
);
</code></pre>
Output:
<pre><code>array (
 0 =&gt; 'id',
 1 =&gt; 6086220176,
 2 =&gt; 6542925762,
 3 =&gt; 6623113406,
 4 =&gt; 6702782948,
 5 =&gt; 
 array (
 0 =&gt; 333,
 1 =&gt; 
 array (
 0 =&gt; 
 array (
 0 =&gt; 444,
 ),
 ),
 ),
)
</code></pre>

blocks|key|2863275|text|这样做是不明智的，但这可能会奏效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2863276|$narray+=+array();
foreach($array+as+$k+=>+$v){
+++$narray[$k%2B1]+=+$v;
}
$array+=+$narray;|code-block|syntax|javascript|2863277|$array是您想从1开始的数组。|offset|length|style|CODE|2863278|entityMap^0|0|0|0|6|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

It's not clever to do this but this could probably works:

<pre><code>$narray = array();
foreach($array as $k =&gt; $v){
 $narray[$k+1] = $v;
}
$array = $narray;
</code></pre>

<code>$array</code> is your array you want to start with 1.

Given an array, how do I convert array starting at key [1] from type string to type int?

<pre><code>Array
(
 [0] =&gt; "id"
 [1] =&gt; "6086220176"
 [2] =&gt; "6542925762"
 [3] =&gt; "6623113406"
 [4] =&gt; "6702782948"
)
</code></pre>

I've checked out related question <a href="https://stackoverflow.com/questions/9593765/how-to-convert-array-values-from-string-to-int">how to convert array values from string to int?</a> already, but I would like to skip the first key "id" int he conversion, and not all keys in array!

Cast all digital values in array as integer-type, otherwise leave non-digital values as strings

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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给定数组时，如何将从键1开始的数组从字符串类型转换为int类型？Array(  [0] => "id"  [1] => "6086220176"  [2] => "6542925762"  [3] => "6623113406"  [4] => "6702782948")我已经检查了相关的问题，但是我想跳过第一个键"id“in he转换，而不是数组中的所有键！

问将数组中的所有数字值转换为整数类型，否则将非数字值保留为字符串。
EN

回答 9

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问将数组中的所有数字值转换为整数类型，否则将非数字值保留为字符串。EN

回答 9

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问将数组中的所有数字值转换为整数类型，否则将非数字值保留为字符串。
EN