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POPass array values into foreach and finally another variable?
 

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    <p>In PHP, what's the best practice for dealing with a loop in a variable? Let me explain.</p> <p>I have a file called index.php which contains the following:</p> <pre><code>&lt;?php $SELECT_INDUSTRY = array("Industry1", "Industry2", "Industry3"); require_once('form.inc'); ?&gt; &lt;html&gt; &lt;head&gt;&lt;/head&gt; &lt;body&gt; &lt;?php echo $FORM_FIELD_INDUSTRY ?&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>I then have a second file called form.inc:</p> <pre><code>&lt;?php $FORM_FIELD_INDUSTRY = '&lt;select&gt;&lt;option value=&gt;Select an Industry&lt;/option&gt;'.$INDUSTRY.'&lt;/select&gt;'; ?&gt; </code></pre> <p>Here's what is needed. I'd like to pass over the array values that are entered, into a foreach to process the array and spit out the <code>&lt;option&gt;&lt;/option&gt;</code> code. Here's an example:</p> <pre><code>foreach ($SELECT_INDUSTRY as $INDUSTRY) { echo '&lt;option value="$INDUSTRY"&gt;$INDUSTRY&lt;/option&gt;'; } </code></pre> <p>So this function would build my select options based on the array values. This works, but how would I be able to then pass the total values into a variable that I've defined in the form.inc file above? In the form.inc file, I have $INDUSTRY as the variable, which I suppose needs some sort of return from the other function. This may also need global variables to pass between functions if it comes to it. Is there a better way of handling this?</p> <p>My end goal is to have the variable $FORM_FIELD_INDUSTRY which spits out the foreach function based on the array values. </p> <p><strong>SOLUTION</strong></p> <p>The solution is listed below, but for anyone coming across this, here is what I did:</p> <p><strong>index.php</strong></p> <pre><code>&lt;?php $SELECT_INDUSTRY = array("Industry1", "Industry2", "Industry3"); $FORM_SELECT_SIZE = ''; require_once('form.inc'); ?&gt; &lt;html&gt; &lt;head&gt;&lt;/head&gt; &lt;body&gt; &lt;?php get_options( $FORM_FIELD_INDUSTRY ) ?&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p><strong>form.inc</strong></p> <pre><code>&lt;?php function get_options( $arr = array() ) { global $FORM_SELECT_SIZE; echo '&lt;select id="industry" class="'.$FORM_SELECT_SIZE.'"&gt;&lt;option value=&gt;Select an Industry&lt;/option&gt;'; foreach( $arr as $option ) { echo '&lt;option&gt;'.$option.'&lt;/option&gt;'; } echo '&lt;/select&gt;&lt;/div&gt;&lt;/div&gt;'; } $FORM_FIELD_INDUSTRY = $SELECT_INDUSTRY; ?&gt; </code></pre> <p>Pretty simple solution for passing values between the function, and variables.</p>
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    1. COWhy aren't you just using a function with the foreach in there?
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    2. COI thought about that, but I couldn't get the final code to work right. I suppose I could break out the foreach into a function, but then how would I call that function within a variable declaration? I'm not sure I can do that.
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    3. COYou can pass variables as arguments to your function, look at the code in the answer below to see how.
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