blocks|key|845407|text|foreach(+$codes+as+$code+and+$names+as+$name+)+{+}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|845408|这是无效的。|unstyled|845409|你可能想要这样的东西...|845410|foreach(+$codes+as+$index+=>+$code+)+{
+++echo+'<option+value="'+.+$code+.+'">'+.+$names[$index]+.+'</option>';
}|845411|或者，让代码成为$names数组的键要容易得多……|offset|length|style|CODE|845412|$names+=+array(
+++'tn'+=>+'Tunisia',
+++'us'+=>+'United+States',
+++...
);|845413|entityMap^0|0|0|0|0|8|6|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|V|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$B|C]]|$1|K|3|L|5|F|7|Y|8|@$M|Z|N|10|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$B|C]]|$1|S|3|-4|5|F|7|12|8|@]|9|@]|A|$]]]|T|$]]

<pre><code>foreach( $codes as $code and $names as $name ) { }
</code></pre>

<p>That is not valid.</p>

<p>You probably want something like this...</p>

<pre><code>foreach( $codes as $index =&gt; $code ) {
   echo '&lt;option value="' . $code . '"&gt;' . $names[$index] . '&lt;/option&gt;';
}
</code></pre>

<p>Alternatively, it'd be much easier to make the codes the key of your <code>$names</code> array...</p>

<pre><code>$names = array(
   'tn' =&gt; 'Tunisia',
   'us' =&gt; 'United States',
   ...
);
</code></pre>


blocks|key|845503|text|foreach一次仅在一个阵列上运行。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|845504|按照数组的结构方式，您可以将它们array_combine()到一个键-值对数组中，然后对该单个数组执行foreach操作：|845505|foreach+(array_combine($codes,+$names)+as+$code+=>+$name)+{
++++echo+'<option+value="'+.+$code+.+'">'+.+$name+.+'</option>';
}|code-block|syntax|javascript|845506|或者，正如在其他答案中看到的，您可以硬编码一个关联数组。|845507|entityMap^0|0|7|0|G|F|1G|7|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|P|$]]

<p><code>foreach</code> operates on only one array at a time.</p>

<p>The way your array is structured, you can <code>array_combine()</code> them into an array of key-value pairs then <code>foreach</code> that single array:</p>

<pre><code>foreach (array_combine($codes, $names) as $code =&gt; $name) {
    echo '&lt;option value="' . $code . '"&gt;' . $name . '&lt;/option&gt;';
}
</code></pre>

<p>Or as seen in the other answers, you can hardcode an associative array instead.</p>


blocks|key|1059917|text|使用array_combine()将数组融合在一起并迭代结果。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1059918|$countries+=+array_combine($codes,+$names);|code-block|syntax|javascript|1059919|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.array-combine.php^0|2|F|2|F|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

<p>Use <a href="http://php.net/manual/en/function.array-combine.php" rel="noreferrer"><code>array_combine()</code></a> to fuse the arrays together and iterate over the result.</p>

<pre><code>$countries = array_combine($codes, $names);
</code></pre>


blocks|key|845552|text|使用关联数组：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|845553|$code_names+=+array(
++++++++++++++++++++'tn'+=>+'Tunisia',
++++++++++++++++++++'us'+=>+'United+States',
++++++++++++++++++++'fr'+=>+'France');

foreach($code_names+as+$code+=>+$name)+{
+++//...
}|code-block|syntax|javascript|845554|我认为使用关联数组是最明智的方法，而不是使用array_combine()，因为一旦有了关联数组，您就可以简单地使用array_keys()或array_values()来获得与以前完全相同的数组。|offset|length|style|CODE|845555|entityMap^0|0|0|M|F|1M|C|1Z|E|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]|$I|T|J|U|K|L]|$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|N|$]]

<p>Use an associative array:</p>

<pre><code>$code_names = array(
                    'tn' =&gt; 'Tunisia',
                    'us' =&gt; 'United States',
                    'fr' =&gt; 'France');

foreach($code_names as $code =&gt; $name) {
   //...
}
</code></pre>

<p>I believe that using an associative array is the most sensible approach as opposed to using <code>array_combine()</code> because once you have an associative array, you can simply use <code>array_keys()</code> or <code>array_values()</code> to get exactly the same array you had before.</p>


blocks|key|846622|text|这对我很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|846623|$codes+=+array('tn',+'us',+'fr');
$names+=+array('Tunisia',+'United+States',+'France');
foreach($codes+as+$key+=>+$value)+{
++++echo+"Code+is:+"+.+$codes[$key]+.+"+-+"+.+"and+Name:+"+.+$names[$key]+.+"<br>";
}|code-block|syntax|javascript|846624|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|$]]

<p>This worked for me:</p>

<pre><code>$codes = array('tn', 'us', 'fr');
$names = array('Tunisia', 'United States', 'France');
foreach($codes as $key =&gt; $value) {
    echo "Code is: " . $codes[$key] . " - " . "and Name: " . $names[$key] . "&lt;br&gt;";
}
</code></pre>


blocks|key|846717|text|这样的代码是不正确的，因为foreach只适用于单个数组：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|846718|<?php
++++++++$codes+=+array('tn','us','fr');
++++++++$names+=+array('Tunisia','United+States','France');

++++++++foreach(+$codes+as+$code+and+$names+as+$name+)+{
++++++++++++echo+'<option+value="'+.+$code+.+'">'+.+$name+.+'</option>';
++++++++++++}
?>|code-block|syntax|javascript|846719|另一种方法，更改为：|846720|<?php
++++++++$codes+=+array('tn','us','fr');
++++++++$names+=+array('Tunisia','United+States','France');
++++++++$count+=+0;

++++++++foreach($codes+as+$code)+{
+++++++++++++echo+'<option+value="'+.+$code+.+'">'+.+$names[count]+.+'</option>';
+++++++++++++$count%2B%2B;
++++++++}

?>|846721|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<p>Your code like this is incorrect as foreach only for single array:</p>

<pre><code>&lt;?php
        $codes = array('tn','us','fr');
        $names = array('Tunisia','United States','France');

        foreach( $codes as $code and $names as $name ) {
            echo '&lt;option value="' . $code . '"&gt;' . $name . '&lt;/option&gt;';
            }
?&gt;
</code></pre>

<p>Alternative, Change to this: </p>

<pre><code>&lt;?php
        $codes = array('tn','us','fr');
        $names = array('Tunisia','United States','France');
        $count = 0;

        foreach($codes as $code) {
             echo '&lt;option value="' . $code . '"&gt;' . $names[count] . '&lt;/option&gt;';
             $count++;
        }

?&gt;
</code></pre>


blocks|key|1060056|text|您可以使用array_merge组合两个数组，然后遍历它们。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1060057|$array1+=+array("foo"+=>+"bar");
$array2+=+array("hello"+=>+"world");
$both_arrays+=+array_merge((array)$array1,+(array)$array2);
print_r($both_arrays);|code-block|syntax|javascript|1060058|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|$]]

<p>You can use array_merge to combine two arrays and then iterate over them.</p>

<pre><code>$array1 = array("foo" =&gt; "bar");
$array2 = array("hello" =&gt; "world");
$both_arrays = array_merge((array)$array1, (array)$array2);
print_r($both_arrays);
</code></pre>


blocks|key|1060825|text|全部经过全面测试|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1060826|3种从数组创建动态下拉列表的方法。|1060827|这将从数组中创建一个下拉菜单，并自动分配其各自的值。|1060828|方法#1+(正常数组)|1060829|<?php

$names+=+array('tn'=>'Tunisia','us'=>'United+States','fr'=>'France');

echo+'<select+name="countries">';

foreach($names+AS+$let=>$word){
++++echo+'<option+value="'.$let.'">'.$word.'</option>';
}
echo+'</select>';
+
?>|code-block|syntax|javascript|1060830|1060831|1060832|方法#2+(正常数组)|1060833|<select+name="countries">

<?php

$countries+=+array('tn'=>+"Tunisia",+"us"=>'United+States',"fr"=>'France');
foreach($countries+as+$select=>$country_name){
echo+'<option+value="'+.+$select+.+'">'+.+$country_name+.+'</option>';
}
?>

</select>|1060834|1060835|1060836|方法#3+(关联数组)|1060837|<?php

$my_array+=+array(
+++++'tn'+=>+'Tunisia',
+++++'us'+=>+'United+States',
+++++'fr'+=>+'France'
);

echo+'<select+name="countries">';
echo+'<option+value="none">Select...</option>';
foreach+($my_array+as+$k+=>+$v)+{
++++echo+'<option+value="'+.+$k+.+'">'+.+$v+.+'</option>';
}
echo+'</select>';
?>|1060838|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|13|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|15|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|17|8|@]|9|@]|A|$]]|$1|Q|3|R|5|J|7|18|8|@]|9|@]|A|$K|L]]|$1|S|3|-4|5|6|7|19|8|@]|9|@]|A|$]]|$1|T|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1B|8|@]|9|@]|A|$]]|$1|W|3|X|5|J|7|1C|8|@]|9|@]|A|$K|L]]|$1|Y|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|Z|$]]

<h3>All fully tested</h3>
<h1>3 ways to create a dynamic dropdown from an array.</h1>
<p>This will create a dropdown menu from an array and automatically assign its respective value.</p>
<h3>Method #1 (Normal Array)</h3>
<pre><code>&lt;?php

$names = array('tn'=&gt;'Tunisia','us'=&gt;'United States','fr'=&gt;'France');

echo '&lt;select name=&quot;countries&quot;&gt;';

foreach($names AS $let=&gt;$word){
    echo '&lt;option value=&quot;'.$let.'&quot;&gt;'.$word.'&lt;/option&gt;';
}
echo '&lt;/select&gt;';
 
?&gt;
</code></pre>
<hr />
<hr />
<h3>Method #2 (Normal Array)</h3>
<pre><code>&lt;select name=&quot;countries&quot;&gt;

&lt;?php

$countries = array('tn'=&gt; &quot;Tunisia&quot;, &quot;us&quot;=&gt;'United States',&quot;fr&quot;=&gt;'France');
foreach($countries as $select=&gt;$country_name){
echo '&lt;option value=&quot;' . $select . '&quot;&gt;' . $country_name . '&lt;/option&gt;';
}
?&gt;

&lt;/select&gt;
</code></pre>
<hr />
<hr />
<h3>Method #3 (Associative Array)</h3>
<pre><code>&lt;?php

$my_array = array(
     'tn' =&gt; 'Tunisia',
     'us' =&gt; 'United States',
     'fr' =&gt; 'France'
);

echo '&lt;select name=&quot;countries&quot;&gt;';
echo '&lt;option value=&quot;none&quot;&gt;Select...&lt;/option&gt;';
foreach ($my_array as $k =&gt; $v) {
    echo '&lt;option value=&quot;' . $k . '&quot;&gt;' . $v . '&lt;/option&gt;';
}
echo '&lt;/select&gt;';
?&gt;
</code></pre>


blocks|key|846502|text|<?php

$codes+=+array+('tn','us','fr');
$names+=+array+('Tunisia','United+States','France');

echo+'<table>';

foreach(array_keys($codes)+as+$i)+{

+++++echo+'<tr><td>';
+++++echo+($i+%2B+1);
+++++echo+'</td><td>';
+++++echo+$codes[$i];
+++++echo+'</td><td>';
+++++echo+$names[$i];
+++++echo+'</td></tr>';
}

echo+'</table>';

?>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|846503|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>&lt;?php

$codes = array ('tn','us','fr');
$names = array ('Tunisia','United States','France');

echo '&lt;table&gt;';

foreach(array_keys($codes) as $i) {

     echo '&lt;tr&gt;&lt;td&gt;';
     echo ($i + 1);
     echo '&lt;/td&gt;&lt;td&gt;';
     echo $codes[$i];
     echo '&lt;/td&gt;&lt;td&gt;';
     echo $names[$i];
     echo '&lt;/td&gt;&lt;/tr&gt;';
}

echo '&lt;/table&gt;';

?&gt;
</code></pre>


blocks|key|846611|text|foreach仅适用于单个数组。要遍历多个数组，最好在while循环中使用each()函数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|846612|while(($code+=+each($codes))+&&+($name+=+each($names)))+{
++++echo+'<option+value="'+.+$code['value']+.+'">'+.+$name['value']+.+'</option>';
}|code-block|syntax|javascript|846613|each()返回有关数组的当前键和值的信息，并将内部指针加1，如果指针已到达数组的末尾，则返回false。此代码将不依赖于具有相同键或具有相同类型元素的两个数组。当两个数组中的一个数组完成时，循环终止。|846614|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

<p>foreach only works with a single array. To step through multiple arrays, it's better to use the each() function in a while loop:</p>

<pre><code>while(($code = each($codes)) &amp;&amp; ($name = each($names))) {
    echo '&lt;option value="' . $code['value'] . '"&gt;' . $name['value'] . '&lt;/option&gt;';
}
</code></pre>

<p>each() returns information about the current key and value of the array and increments the internal pointer by one, or returns false if it has reached the end of the array. This code would not be dependent upon the two arrays having identical keys or having the same sort of elements. The loop terminates when one of the two arrays is finished.</p>


blocks|key|1061060|text|尝试这样做，而不是foreach循环(仅当您的数组具有相同长度时)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1061061|$number+=+COUNT($_POST["codes+"]);//count+how+many+arrays+available
if($number+>+0)++
{++
++for($i=0;+$i<$number;+$i%2B%2B)//loop+thru+each+arrays
++{
++++$codes+=$_POST['codes'][$i];
++++$names+=$_POST['names'][$i];
++++//ur+code+in+here
++}
}|code-block|syntax|javascript|1061062|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|$]]

<p>Instead of foreach loop, try this (only when your arrays have same length).</p>

<pre><code>$number = COUNT($_POST["codes "]);//count how many arrays available
if($number &gt; 0)  
{  
  for($i=0; $i&lt;$number; $i++)//loop thru each arrays
  {
    $codes =$_POST['codes'][$i];
    $names =$_POST['names'][$i];
    //ur code in here
  }
}
</code></pre>


blocks|key|1060100|text|在组合来自多个表单输入的$_POST多个值以尝试更新购物车中的产品数量时，array_combine()对我来说非常有用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1060101|entityMap^0|C|6|11|F|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

<p><code>array_combine()</code> worked great for me while combining <code>$_POST</code> multiple values from multiple form inputs in an attempt to update products quantities in a shopping cart.</p>


blocks|key|846557|text|我认为你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|846558|$codes+=数组(‘tn’，'us'，'fr')；|846559|$names+=array(‘突尼斯岛’，‘美国’，‘法国’)；|846560|foreach+($codes+as+$key+=>+$code)+{
++++echo+'<option+value="'+.+$code+.+'">'+.+$names[$key]+.+'</option>';
}|code-block|syntax|javascript|846561|它也应该适用于关联数组。|846562|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

<p>I think that you can do something like:</p>

<p>

<p>$codes = array('tn','us','fr');</p>

<p>$names = array('Tunisia','United States','France');</p>

<pre><code>foreach ($codes as $key =&gt; $code) {
    echo '&lt;option value="' . $code . '"&gt;' . $names[$key] . '&lt;/option&gt;';
}
</code></pre>

<p>It should also work for associative arrays.</p>


blocks|key|1060955|text|我认为最简单的方法就是这样使用for循环：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1060956|$codes+=+array('tn','us','fr');
$names+=+array('Tunisia','United+States','France');

for($i+=+0;+$i+<+sizeof($codes);+$i%2B%2B){
++++echo+'<option+value="'+.+$codes[$i]+.+'">'+.+$names[$i]+.+'</option>';
}|code-block|syntax|javascript|1060957|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|$]]

<p>I think the simplest way is just to use the for loop this way:</p>

<p>

<pre><code>$codes = array('tn','us','fr');
$names = array('Tunisia','United States','France');

for($i = 0; $i &lt; sizeof($codes); $i++){
    echo '&lt;option value="' . $codes[$i] . '"&gt;' . $names[$i] . '&lt;/option&gt;';
}
</code></pre>


blocks|key|1060129|text|if(isset($_POST['doors'])===+true){
$doors+=+$_POST['doors'];
}else{$doors+=+0;}

if(isset($_POST['windows'])===+true){
$windows+=+$_POST['windows'];
}else{$windows+=+0;}

foreach($doors+as+$a+=>+$b){|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1060130|现在，您可以对每个数组使用$a+...|unstyled|1060131|$doors[$a]
$windows[$a]
....
}|1060132|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>if(isset($_POST['doors'])=== true){
$doors = $_POST['doors'];
}else{$doors = 0;}

if(isset($_POST['windows'])=== true){
$windows = $_POST['windows'];
}else{$windows = 0;}

foreach($doors as $a =&gt; $b){
</code></pre>

<p>Now you can use $a for each array....</p>

<pre><code>$doors[$a]
$windows[$a]
....
}
</code></pre>


blocks|key|845715|text|我用这种方法解决了一个像你这样的问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|845716|foreach(array_keys($idarr)+as+$i)+{
+echo+"Student+ID:+".$idarr[$i]."<br+/>";
+echo+"Present:+".$presentarr[$i]."<br+/>";
+echo+"Reason:+".$reasonarr[$i]."<br+/>";
+echo+"Mark:+".$markarr[$i]."<br+/>";
}|code-block|syntax|javascript|845717|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|$]]

<p>I solved a problem like yours by this way:</p>

<pre><code>foreach(array_keys($idarr) as $i) {
 echo "Student ID: ".$idarr[$i]."&lt;br /&gt;";
 echo "Present: ".$presentarr[$i]."&lt;br /&gt;";
 echo "Reason: ".$reasonarr[$i]."&lt;br /&gt;";
 echo "Mark: ".$markarr[$i]."&lt;br /&gt;";
}
</code></pre>


blocks|key|846489|text|假设我有2个数组1.$item_nm+2.$item_qty，你应该尝试在单个foreach循环中放入2个数组|type|unstyled|depth|inlineStyleRanges|entityRanges|data|846490|+`<?php+$i=1;+?>
<table><tr><td>Sr.No</td>+<td>item_nm</td>++<td>item_qty</td>++++</tr>

++@foreach+(array_combine($item_nm,+$item_qty)+as+$item_nm+=>+$item_qty)
<tr>+
++++++++<td>+$i%2B%2B++</td>
++++++++<td>++$item_nm++</td>
++++++++<td>+$item_qty++</td>
+++</tr></table>

@endforeach+`|code-block|syntax|javascript|846491|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|$]]

<p>You should try this for the putting 2 array in singlr foreach loop
Suppose i have 2 Array 
1.$item_nm
2.$item_qty</p>

<pre><code> `&lt;?php $i=1; ?&gt;
&lt;table&gt;&lt;tr&gt;&lt;td&gt;Sr.No&lt;/td&gt; &lt;td&gt;item_nm&lt;/td&gt;  &lt;td&gt;item_qty&lt;/td&gt;    &lt;/tr&gt;

  @foreach (array_combine($item_nm, $item_qty) as $item_nm =&gt; $item_qty)
&lt;tr&gt; 
        &lt;td&gt; $i++  &lt;/td&gt;
        &lt;td&gt;  $item_nm  &lt;/td&gt;
        &lt;td&gt; $item_qty  &lt;/td&gt;
   &lt;/tr&gt;&lt;/table&gt;

@endforeach `
</code></pre>


blocks|key|1060911|text|很少有数组也可以像这样迭代：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1060912|foreach($array1+as+$key=>$val){+//+Loop+though+one+array
++++$val2+=+$array2[$key];+//+Get+the+values+from+the+other+arrays
++++$val3+=+$array3[$key];
++++$result[]+=+array(+//Save+result+in+third+array
++++++'id'+=>+$val,
++++++'quant'+=>+$val2,
++++++'name'+=>+$val3,
++++);
++}|code-block|syntax|javascript|1060913|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|$]]

<p>Few arrays can also be iterated like this:</p>

<pre><code>foreach($array1 as $key=&gt;$val){ // Loop though one array
    $val2 = $array2[$key]; // Get the values from the other arrays
    $val3 = $array3[$key];
    $result[] = array( //Save result in third array
      'id' =&gt; $val,
      'quant' =&gt; $val2,
      'name' =&gt; $val3,
    );
  }
</code></pre>


blocks|key|1061186|text|这只在两个数组具有相同的计数时才有效。在laravel中尝试，以便在mysql数据库中插入这两个数组|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1061187|$answer+=+{"0":"0"，"1":"1"，"2":"0"，"3":"0"，"4":"1"}；|1061188|$reason_id+=+{"0":"17"，"1":"19"，"2":"15"，"3":"19"，"4":"18"}；|1061189|++++++++$k=+(array)json_decode($answer);
++++++++$x+=(array)json_decode($reason_id);
++++++++$number+=+COUNT(json_decode($reason_id,+true));
++++++++if($number+>+0)++
++++++++{++
++++++++for($i=0;+$i<$number;+$i%2B%2B)
++++++++{
++++++++++++$val+=+new+ModelName();
++++++++++++$val->reason_id++=+$x[$i];
++++++++++++$val->answer++=$k[$i];
++++++++++++$val->save();
++++++++}
++++++++}|code-block|syntax|javascript|1061190|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|P|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<p>This will only work if the both array have same count.I try in laravel, for inserting both array in mysql db</p>
<p>$answer = {&quot;0&quot;:&quot;0&quot;,&quot;1&quot;:&quot;1&quot;,&quot;2&quot;:&quot;0&quot;,&quot;3&quot;:&quot;0&quot;,&quot;4&quot;:&quot;1&quot;};<br>
$reason_id = {&quot;0&quot;:&quot;17&quot;,&quot;1&quot;:&quot;19&quot;,&quot;2&quot;:&quot;15&quot;,&quot;3&quot;:&quot;19&quot;,&quot;4&quot;:&quot;18&quot;};</p>
<pre><code>        $k= (array)json_decode($answer);
        $x =(array)json_decode($reason_id);
        $number = COUNT(json_decode($reason_id, true));
        if($number &gt; 0)  
        {  
        for($i=0; $i&lt;$number; $i++)
        {
            $val = new ModelName();
            $val-&gt;reason_id  = $x[$i];
            $val-&gt;answer  =$k[$i];
            $val-&gt;save();
        }
        }
</code></pre>


blocks|key|1060180|text|对我来说很管用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1060181|$counter+=+0;
foreach($codes+as+$code)
{
$codes_array[$counter]=$code;
$counter%2B%2B;
}
$counter+=+0;
foreach($names+as+$name)
{
echo+$codes_array[$counter]."and".$name;
$counter%2B%2B;
}|code-block|syntax|javascript|1060182|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|$]]

<p>it works for me</p>

<pre><code>$counter = 0;
foreach($codes as $code)
{
$codes_array[$counter]=$code;
$counter++;
}
$counter = 0;
foreach($names as $name)
{
echo $codes_array[$counter]."and".$name;
$counter++;
}
</code></pre>


<p>I want to generate a <code>selectbox</code> using two arrays, one containing the country codes and another containing the country names.</p>

<p>This is an example:</p>

<pre><code>&lt;?php
    $codes = array('tn','us','fr');
    $names = array('Tunisia','United States','France');

    foreach( $codes as $code and $names as $name ) {
        echo '&lt;option value="' . $code . '"&gt;' . $name . '&lt;/option&gt;';
    }
?&gt;
</code></pre>

<p>This method didn't work for me. Any suggestions?</p>


Two arrays in foreach loop

数据库

我想使用两个数组生成一个selectbox，一个包含国家代码，另一个包含国家名称。这是一个示例：<?php    $codes = array('tn','us','fr');    $names = array('Tunisia','United States','France');    foreach( $codes as $code and $names as $name ) {     

问foreach循环中的两个数组
EN

回答 20

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问foreach循环中的两个数组EN

回答 20

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问foreach循环中的两个数组
EN