blocks|key|1907279|text|如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1907280|<?php
++$option+=+$_POST['taskOption'];
?>|code-block|syntax|javascript|1907281|HTML数组的索引始终基于任何$_POST输入的name属性的值。|offset|length|style|CODE|1907282|entityMap^0|0|0|F|6|O|4|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]|$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

<p>Like this:</p>

<pre><code>&lt;?php
  $option = $_POST['taskOption'];
?&gt;
</code></pre>

<p>The index of the <code>$_POST</code> array is always based on the value of the <code>name</code> attribute of any HTML input.</p>


blocks|key|4031867|text|使用以下方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4031868|$selectOption+=+$_POST['taskOption'];|code-block|syntax|javascript|4031869|但是，给<option>标记赋值总是更好的。|offset|length|style|CODE|4031870|<select+name="taskOption">
++<option+value="1">First</option>
++<option+value="2">Second</option>
++<option+value="3">Third</option>
</select>|4031871|entityMap^0|0|0|4|8|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

<p>Use this way:</p>

<pre><code>$selectOption = $_POST['taskOption'];
</code></pre>

<p>But it is always better to give values to your <code>&lt;option&gt;</code> tags.</p>

<pre><code>&lt;select name="taskOption"&gt;
  &lt;option value="1"&gt;First&lt;/option&gt;
  &lt;option value="2"&gt;Second&lt;/option&gt;
  &lt;option value="3"&gt;Third&lt;/option&gt;
&lt;/select&gt;
</code></pre>


blocks|key|4031934|text|您可以通过键值访问$_POST数组中的值。$_POST是一个关联数组，因此要访问taskOption，您需要使用$_POST['taskOption'];。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4031935|在继续之前，请确保检查它是否存在于$_POST数组中。|4031936|<form+method="post"+action="process.php">
++<select+name="taskOption">
++++<option+value="first">First</option>
++++<option+value="second">Second</option>
++++<option+value="third">Third</option>
++</select>
++<input+type="submit"+value="Submit+the+form"/>
</form>|code-block|syntax|javascript|4031937|process.php|BOLD|4031938|<?php
+++$option+=+isset($_POST['taskOption'])+?+$_POST['taskOption']+:+false;
+++if+($option)+{
++++++echo+htmlentities($_POST['taskOption'],+ENT_QUOTES,+"UTF-8");
+++}+else+{
+++++echo+"task+option+is+required";
+++++exit;+
+++}|4031939|entityMap^0|9|6|14|A|1K|L|0|0|0|0|B|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|11|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|12|8|@$9|13|A|14|B|O]]|D|@]|E|$]]|$1|P|3|Q|5|J|7|15|8|@]|D|@]|E|$K|L]]|$1|R|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|S|$]]

<p>You can access values in the <code>$_POST</code> array by their key. $_POST is an associative array, so to access <code>taskOption</code> you would use <code>$_POST['taskOption'];</code>.</p>

<p>Make sure to check if it exists in the $_POST array before proceeding though.</p>

<pre><code>&lt;form method="post" action="process.php"&gt;
  &lt;select name="taskOption"&gt;
    &lt;option value="first"&gt;First&lt;/option&gt;
    &lt;option value="second"&gt;Second&lt;/option&gt;
    &lt;option value="third"&gt;Third&lt;/option&gt;
  &lt;/select&gt;
  &lt;input type="submit" value="Submit the form"/&gt;
&lt;/form&gt;
</code></pre>

<p><strong>process.php</strong></p>

<pre><code>&lt;?php
   $option = isset($_POST['taskOption']) ? $_POST['taskOption'] : false;
   if ($option) {
      echo htmlentities($_POST['taskOption'], ENT_QUOTES, "UTF-8");
   } else {
     echo "task option is required";
     exit; 
   }
</code></pre>


blocks|key|4031944|text|<select+name="taskOption">
++++++<option+value="first">First</option>
++++++<option+value="second">Second</option>
++++++<option+value="third">Third</option>
</select>

$var+=+$_POST['taskOption'];|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4031945|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;select name="taskOption"&gt;
      &lt;option value="first"&gt;First&lt;/option&gt;
      &lt;option value="second"&gt;Second&lt;/option&gt;
      &lt;option value="third"&gt;Third&lt;/option&gt;
&lt;/select&gt;

$var = $_POST['taskOption'];
</code></pre>


blocks|key|1777366|text|取决于select所在的窗体是否将方法设置为"get“或"post”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1777367|如果为<form+method="get">，则select的值将位于超级全局数组$_GET['taskOption']中。|offset|length|style|CODE|1777368|如果为<form+method="post">，则select的值将位于超级全局数组$_POST['taskOption']中。|1777369|要将其存储到变量中，您需要：|1777370|$option+=+$_POST['taskOption']|code-block|syntax|javascript|1777371|获取更多信息的一个好地方是PHP手册：http://php.net/manual/en/tutorial.forms.php|1777372|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/tutorial.forms.php^0|0|3|J|15|J|0|3|K|16|K|0|0|0|J|17|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@$D|12|E|13|F|G]|$D|14|E|15|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|16|8|@$D|17|E|18|F|G]|$D|19|E|1A|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|1B|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|1C|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@$D|1E|E|1F|1|1G]]|A|$]]|$1|S|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

<p>Depends on if the form that the select is contained in has the method set to "get" or "post".</p>

<p>If <code>&lt;form method="get"&gt;</code> then the value of the select will be located in the super global array <code>$_GET['taskOption']</code>.</p>

<p>If <code>&lt;form method="post"&gt;</code> then the value of the select will be located in the super global array <code>$_POST['taskOption']</code>.</p>

<p>To store it into a variable you would: </p>

<pre><code>$option = $_POST['taskOption']
</code></pre>

<p>A good place for more information would be the PHP manual: <a href="http://php.net/manual/en/tutorial.forms.php" rel="nofollow">http://php.net/manual/en/tutorial.forms.php</a></p>


blocks|key|1777374|text|你也可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1777375|<?php
if(isset($_POST['select1'])){
++++$select1+=+$_POST['select1'];
++++switch+($select1)+{
++++++++case+'value1':
++++++++++++echo+'this+is+value1<br/>';
++++++++++++break;
++++++++case+'value2':
++++++++++++echo+'value2<br/>';
++++++++++++break;
++++++++default:
++++++++++++#+code...
++++++++++++break;
++++}
}
?>


<form+action=""+method="post">
++++<select+name="select1">
++++++++<option+value="value1">Value+1</option>
++++++++<option+value="value2">Value+2</option>
++++</select>
++++<input+type="submit"+name="submit"+value="Go"/>
</form>|code-block|syntax|javascript|1777376|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 do it like this, too:</p>

<pre><code>&lt;?php
if(isset($_POST['select1'])){
    $select1 = $_POST['select1'];
    switch ($select1) {
        case 'value1':
            echo 'this is value1&lt;br/&gt;';
            break;
        case 'value2':
            echo 'value2&lt;br/&gt;';
            break;
        default:
            # code...
            break;
    }
}
?&gt;


&lt;form action="" method="post"&gt;
    &lt;select name="select1"&gt;
        &lt;option value="value1"&gt;Value 1&lt;/option&gt;
        &lt;option value="value2"&gt;Value 2&lt;/option&gt;
    &lt;/select&gt;
    &lt;input type="submit" name="submit" value="Go"/&gt;
&lt;/form&gt;
</code></pre>


blocks|key|4031984|text|<select+name="taskOption">
<option+value="1">First</option>
<option+value="2">Second</option>
<option+value="3">Third</option>
</select>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4031985|尝尝这个|unstyled|4031986|<?php+
if(isset($_POST['button_name'])){
$var+=+$_POST['taskOption']
if($var+==+"1"){
echo"your+data+here";
}
}?>|4031987|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>&lt;select name="taskOption"&gt;
&lt;option value="1"&gt;First&lt;/option&gt;
&lt;option value="2"&gt;Second&lt;/option&gt;
&lt;option value="3"&gt;Third&lt;/option&gt;
&lt;/select&gt;
</code></pre>

<p>try this</p>

<pre><code>&lt;?php 
if(isset($_POST['button_name'])){
$var = $_POST['taskOption']
if($var == "1"){
echo"your data here";
}
}?&gt;
</code></pre>


blocks|key|1907417|text|--+html文件--|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1907418|<select+name='city[]'>+
++++++++++++++++<option+name='Kabul'+value="Kabul"+>+Kabul+</option>
++++++++++++++++<option+name='Herat'+value='Herat'+selected="selected">+++++++++++++Herat+</option>
++++++++++++++++<option+name='Mazar'+value='Mazar'>Mazar+</option>
</select>|code-block|syntax|javascript|1907419|--+php文件--|1907420|$city+=+(isset($_POST['city'])+?+$_POST['city']:+null);
print("city+is:+".$city[0]);|1907421|entityMap^0|0|B|0|0|0|A|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

<p><br>
<strong>-- html file --</strong></p>

<pre><code>&lt;select name='city[]'&gt; 
                &lt;option name='Kabul' value="Kabul" &gt; Kabul &lt;/option&gt;
                &lt;option name='Herat' value='Herat' selected="selected"&gt;             Herat &lt;/option&gt;
                &lt;option name='Mazar' value='Mazar'&gt;Mazar &lt;/option&gt;
&lt;/select&gt;
</code></pre>

<p><strong>-- php file --</strong></p>

<pre><code>$city = (isset($_POST['city']) ? $_POST['city']: null);
print("city is: ".$city[0]);
</code></pre>


<p>I use <code>select</code> as below:</p>

<pre><code>&lt;select name="taskOption"&gt;
    &lt;option&gt;First&lt;/option&gt;
    &lt;option&gt;Second&lt;/option&gt;
    &lt;option&gt;Third&lt;/option&gt;
&lt;/select&gt;
</code></pre>

<p>How do I get the value from the <code>select</code> option and store it into a variable for future use, in PHP?</p>


Using $_POST to get select option value from HTML

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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我使用select，如下所示：<select name="taskOption">    <option>First</option>    <option>Second</option>    <option>Third</option></select>在PHP语言中，如何从select选项获取值并将其存储到变量中...

问使用$_POST从HTML中获取select选项值
EN

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问使用$_POST从HTML中获取select选项值EN