blocks|key|299813|text|对于使用通配符的搜索，您可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|299814|<?php
$path+=+"/var/www/html/*";

$latest_ctime+=+0;
$latest_filename+=+'';

$files+=+glob($path);
foreach($files+as+$file)
{
++++++++if+(is_file($file)+&&+filectime($file)+>+$latest_ctime)
++++++++{
++++++++++++++++$latest_ctime+=+filectime($file);
++++++++++++++++$latest_filename+=+$file;
++++++++}
}
return+$latest_filename;
?>|code-block|syntax|javascript|299815|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|$]]

For a search with wildcard you can use:
<pre><code>&lt;?php
$path = &quot;/var/www/html/*&quot;;

$latest_ctime = 0;
$latest_filename = '';

$files = glob($path);
foreach($files as $file)
{
 if (is_file($file) &amp;&amp; filectime($file) &gt; $latest_ctime)
 {
 $latest_ctime = filectime($file);
 $latest_filename = $file;
 }
}
return $latest_filename;
?&gt;
</code></pre>

blocks|key|516472|text|我的解决方案，来自Max+Hofmann的改进解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|516473|$ret+=+[];
$dir+=+Yii::getAlias("@app")+.+"/web/uploads/problem-letters/{$this->id}";+//+set+directory+in+question

if(is_dir($dir))+{
+++$ret+=+array_diff(scandir($dir),+array(".",+".."));+//+get+all+files+in+dir+as+array+and+remove+.+and+..+from+it
}

usort($ret,+function+($a,+$b)+use+($dir)+{
++++if(filectime($dir+.+"/"+.+$a)+<+filectime($dir+.+"/"+.+$b))+{
+++++++++return+-1;
++++}+else+if(filectime($dir+.+"/"+.+$a)+==+filectime($dir+.+"/"+.+$b))+{
+++++++++return+0;
++++}+else+{
+++++++++return+1;
++++}
});+//+sort+array+by+file+creation+time,+older+first

echo+$ret[count($ret)-1];+//+filename+of+last+created+file|code-block|syntax|javascript|516474|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|$]]

My solution, improved solution from Max Hofmann:
<pre class="lang-php prettyprint-override"><code>$ret = [];
$dir = Yii::getAlias(&quot;@app&quot;) . &quot;/web/uploads/problem-letters/{$this-&gt;id}&quot;; // set directory in question

if(is_dir($dir)) {
 $ret = array_diff(scandir($dir), array(&quot;.&quot;, &quot;..&quot;)); // get all files in dir as array and remove . and .. from it
}

usort($ret, function ($a, $b) use ($dir) {
 if(filectime($dir . &quot;/&quot; . $a) &lt; filectime($dir . &quot;/&quot; . $b)) {
 return -1;
 } else if(filectime($dir . &quot;/&quot; . $a) == filectime($dir . &quot;/&quot; . $b)) {
 return 0;
 } else {
 return 1;
 }
}); // sort array by file creation time, older first

echo $ret[count($ret)-1]; // filename of last created file
</code></pre>

blocks|key|516572|text|在下面的示例中，我更有信心使用自己的验证器，而不是简单地依赖于scandir()的时间戳。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|516573|在这种情况下，我想检查我的服务器是否有比客户端版本更新的文件版本。所以我比较了文件名中的版本号。|516574|$clientAppVersion+=+"1.0.5";
$latestVersionFileName+=+"";

$directory+=+"../../download/updates/darwin/"
$arrayOfFiles+=+scandir($directory);
foreach+($arrayOfFiles+as+$file)+{
++++if+(is_file($directory+.+$file))+{
++++++++//+Your+custom+code+here...+For+example:
++++++++$serverFileVersion+=+getVersionNumberFromFileName($file);
++++++++if+(isVersionNumberGreater($serverFileVersion,+$clientAppVersion))+{
++++++++++++$latestVersionFileName+=+$file;
++++++++}
++++}
}


//+function+declarations+in+my+php+file+(used+in+the+forEach+loop)
function+getVersionNumberFromFileName($fileName)+{
++++//+extract+the+version+number+with+regEx+replacement
++++return+preg_replace("/Finance+D+-+Tenue+de+livres-darwin-(x64%7Carm64)-%7C\.zip/",+"",+$fileName);
}

function+removeAllNonDigits($semanticVersionString)+{
++++//+use+regex+replacement+to+keep+only+numeric+values+in+the+semantic+version+string
++++return+preg_replace("/\D%2B/",+"",+$semanticVersionString);
}

function+isVersionNumberGreater($serverFileVersion,+$clientFileVersion):+bool+{
++++//+receives+two+semantic+versions+(1.0.4)+and+compares+their+numeric+value+(104)
++++//+true+when+server+version+is+greater+than+client+version+(105+>+104)
++++return+removeAllNonDigits($serverFileVersion)+>+removeAllNonDigits($clientFileVersion);
}|code-block|syntax|javascript|516575|使用这种手动比较而不是时间戳，我可以获得更外科手术的结果。如果你有类似的需求，我希望这能给你一些有用的想法。|516576|(附言:我花了一些时间发表文章，因为我对我发现的与我的具体要求有关的答案不满意。请好心，我也不太习惯StackOverflow+-谢谢！)|516577|entityMap|0|LINK|mutability|MUTABLE|url|https://www.php.net/manual/en/function.scandir.php^0|V|7|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|C|$]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|C|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

Here's an example where I felt more confident in using my own validator rather than simply relying on a timestamp with <a href="https://www.php.net/manual/en/function.scandir.php" rel="nofollow noreferrer">scandir</a>().
In this context, I want to check if my server has a more recent file version than the client's version. So I compare version numbers from the file names.
<pre class="lang-php prettyprint-override"><code>$clientAppVersion = &quot;1.0.5&quot;;
$latestVersionFileName = &quot;&quot;;

$directory = &quot;../../download/updates/darwin/&quot;
$arrayOfFiles = scandir($directory);
foreach ($arrayOfFiles as $file) {
 if (is_file($directory . $file)) {
 // Your custom code here... For example:
 $serverFileVersion = getVersionNumberFromFileName($file);
 if (isVersionNumberGreater($serverFileVersion, $clientAppVersion)) {
 $latestVersionFileName = $file;
 }
 }
}


// function declarations in my php file (used in the forEach loop)
function getVersionNumberFromFileName($fileName) {
 // extract the version number with regEx replacement
 return preg_replace(&quot;/Finance D - Tenue de livres-darwin-(x64|arm64)-|\.zip/&quot;, &quot;&quot;, $fileName);
}

function removeAllNonDigits($semanticVersionString) {
 // use regex replacement to keep only numeric values in the semantic version string
 return preg_replace(&quot;/\D+/&quot;, &quot;&quot;, $semanticVersionString);
}

function isVersionNumberGreater($serverFileVersion, $clientFileVersion): bool {
 // receives two semantic versions (1.0.4) and compares their numeric value (104)
 // true when server version is greater than client version (105 &gt; 104)
 return removeAllNonDigits($serverFileVersion) &gt; removeAllNonDigits($clientFileVersion);
}
</code></pre>
Using this manual comparison instead of a timestamp I can achieve a more surgical result. I hope this can give you some useful ideas if you have a similar requirement.
(PS: I took time to post because I was not satisfied with the answers I found relating to the specific requirement I had. Please be kind I'm also not very used to StackOverflow - Thanks!)

So I have this app that processes CSV files. I have a line of code to load the file.

<pre><code>$myFile = "data/FrontlineSMS_Message_Export_20120721.csv"; //The name of the CSV file
$fh = fopen($myFile, 'r'); //Open the file
</code></pre>

I would like to find a way in which I could look in the <code>data</code> directory and get the newest file (they all have date tags so they would be in order inside of <code>data</code>) and set the name equal to <code>$myFile</code>.

I really couldn't find and understand the documentation of php directories so any helpful resources would be appreciated as well. Thank you.

How to get the newest file in a directory in php

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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所以我有一个处理CSV文件的应用程序。我有一行代码来加载这个文件。$myFile = "data/FrontlineSMS_Message_Export_20120721.csv";  //The name of the CSV file$fh = fopen($myFile, 'r');               ...

问如何在php中获取目录中的最新文件
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