Lenix

free command optional parameters -b,-k,-m,-g show output in bytes, KB, MB, or GB -h human readable output (automatic unit scaling) -l show detailed low and high memory statistics -o use old format (no -/buffers/cache line) -t display total for RAM swap -s … The post Using the Free Command to View Linux Server Memory Usage […]

How to monitor if a process is running in PHP exec(“pgrep lighttpd”, $pids); if(empty($pids)) { // lighttpd is not running! } pgrep -f full name match. … The post PHP methods for monitoring whether a process is running first appeared on Lenix Blog . This article is reprinted from https://blog.p2hp.com/archives/8810 This site is for inclusion

Native php recursively delete files + folders <?php function deldir($dirname){ if(file_exists($dirname)) {//Determine whether there is a folder $dir=opendir($dirname);//Open the folder while($filename=readdir($dir)){//Read the 123 folder the data if($filename!=”.” && $filename!=”..”){//remove.and..except $file=$dirname.”/”.$filename; if(is_dir($file)){ deldir($file); //Use recursive deletion of subdirectories, that is to say, to determine whether there are folders in the 123 folder, if there is traversal

In the case of F12 censored elements, it is possible to randomly change the code, inject malicious JS, etc. to avoid this situation as follows: 1. Block F12 censorship elements <script> document.onkeydown = function () { if (window.event && window.event.keyCode == 123) { alert(“F12 is disabled”); event.keyCode = 0; event.returnValue = false; } if (window.event

How to get directory size with PHP function GetDirectorySize($path){ $bytestotal = 0; $path = realpath($path); if($path!==false && $path!=” && file_exists($path)){ foreach(new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path, FilesystemIterator::SKIP_DOTS)) as $object){ $bytestotal += $object->getSize(); } } return $bytestotal; } … The post How to Get Directory Size with PHP first appeared on Lenix Blog . This article is reprinted from

Article directory 1. View the time of the file 2. Time to modify the file 1. Modify the access time and modification time of the file at the same time 2. Only modify the modification time of the file 3. Only modify the access time of the file 4. Modify the time of one file

//datetime is the timestamp obtained var date = new Date(datetime);//If the timestamp is 10 digits, *1000 is required, and if the timestamp is 13 digits, it does not need to be multiplied by 1000 var year = date.getFullYear(), month = (“0” + (date.getMonth() + 1)).slice(-2), sdate = (“0” + date.getDate()).slice(-2), hour = (“0” + date.getHours()).slice(-2),

TTF (TrueType Font) TrueType is a type standard for computer outline fonts (curve strokes) jointly developed by Apple and Microsoft. The extension of this type of font file is .ttf and the type code is tfil . The main strength of TrueType is that it gives developers advanced control over font display, pixel-level display of

HTTP In some cases I need to send a request with some data for logging when the user does something like navigating to a different page or submitting a form. Consider this contrived example of sending some information to an external service when a link is clicked: < a href = ” /some-other-page ” id

Let’s take a look at these commands: locate whereis which find locate Order_ This command will traverse your entire filesystem and find every occurrence of that keyword, so as you can imagine the results can be overwhelming. locate keyword locate Uses a database that is usually updated daily, so if you’re searching for something recently created, it

In order to enhance the security of the Linux system, we need to automatically disconnect after the user input is idle for a period of time. This operation can be achieved by setting the TMOUT value. Just add the following fields to /etc/profile (valid for all users). export TMOUT=900 # Set the field to disconnect

Resolved “The optional mod imagick is not installed or has been disabled ” in the WordPress 5.x Site Health check. Enter the following command to install imagick: pecl install imagick At this point, it will prompt Please provide the prefix of ImageMagick installation [autodetect] enter: <div /usr If php is compiled and installed from its

Recently, I was doing the optimization of my personal WordPress site. I checked it with the official site inspection tool. The following two errors occurred. The problem prompts are as follows: site health status WordPress Site Health Check shows you critical issues about your WordPress configuration, and items that require your attention. 2 key questions