How can I access the for-loop variable outside the loop in PHP?

Question

I have a for loop in PHP and want to access the $f variable outside the loop. Is there a certain way to do this? I searched for the answer but can't find the right one.

foreach($dirlist as $f) {

}

filemtime($f)

Update:

I just went the more simple way and ended up doing this:

date('M d, Y', filemtime(getcwd().'/index.php'))

Are you aware that the $f will be the last element in the array? — someOne
– someOne, Commented May 22, 2015 at 5:43
Its not possible @Mike you will be getting only the last element from the array... — Vickrant
– Vickrant, Commented May 22, 2015 at 5:44
Why arent you using filemtime in loop? Could you clarify, what you want to achieve? — Rene Korss
– Rene Korss, Commented May 22, 2015 at 5:50
I think you are looping through that array to meet some criteria, and you want to access the matched one outside the loop, don't you? — someOne
– someOne, Commented May 22, 2015 at 5:52

Rene Korss · Accepted Answer · 2015-05-22 06:05:25Z

2

Add your filemtime results to the new array and retrieve last modified date by file name.

<?php
// Array of modified dates, file names as keys
$modifiedDates = array();

foreach($dirlist as $f) {
  $modifiedDates[basename($f)] = filemtime($f);
}

// File name to look modified time again (just file name, no path)
// basename function gets file name from path
$filename = basename( $pathToFile );
$lastModified = $modifiedDates[$filename];
?>
<p class="post-info">This article was last reviewed on <?php echo '<time itemprop="dateModified" datetime="'.date('Y-m-d', $lastModified).'">'. date('M d, Y', $lastModified).'</time>'; ?></p>

answered May 22, 2015 at 6:05

Rene Korss

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4 Comments

Mike Over a year ago

I ended up simply using this date('M d, Y', filemtime(getcwd().'/index.php'))

Rene Korss Over a year ago

But your question was not to use filemtime on this file again. Though your solution dosen't answer the question. I understand that this way worked for you, but you should stick to your question "How can I access the for-loop variable outside the loop in PHP?".

Mike Over a year ago

I would like to know how to but can't figure it out. So I did what was easier. My question seems pretty simple. I just want to know how to, after looping through the array to meet some criteria, then be able to access the matched one outside the loop?

Rene Korss Over a year ago

Yes. I totally understand you. You did what was easier and it works well. Though I think I answered your question. With my solution, you can access this date outside of the loop.

someOne · Accepted Answer · 2015-05-22 06:02:17Z

0

Consider the following pseudo-code:

$yourMatchedFile = null;
foreach($dirlist as $f) {
    if($f is good enough!!) {
        $yourMatchedFile = $f;
        break;
    }
}

if(isset($yourMatchedFile)) {
     DoWhatever();
}

answered May 22, 2015 at 6:02

someOne

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