Every PHP script process has its own current working directory, files and directory are created under this directory by default if not otherwise specified. The default working directory of any php script is the home directory of the php owner or the current working directory returned by Linux shell command pwd. As most of the …
As long as the owner of the php script has the necessary privilege to delete a file, the php script has the ability to delete it. To delete a file with PHP, use the unlink() function: unlink(‘tmpfile.txt’) or die(‘Unable to delete the file’); It returns true if the deletion is successful and false otherwise.
It’s common tasks to parse and deal with file paths or URL in PHP. And most common must be to identify and distinguish the directory path or file name from the file path or URL. For instance, the full path to a text file is: ‘/home/john/lanning.com/somefile.txt‘ and you want get the directory part as well …
PHP: Getting Directory Path and Filename from A Full Path or URL Read More »
There are 2 ways to the size of a file with PHP. PHP function filesize() returning the file size in bytes: $bytes = filesize(‘log.txt’); // $bytes now contains the size of the file log.txt in bytes PHP function stat() returning an array of information about the file including the size of it, also in bytes: …
Unless you have explicitly opted out with a noatime option mounting your Linux file system, there are generally 3 types of time on each and every file of Linux: atime or access time, ctime or change time, and mtime or modification time. These are the differences between the 3 file system times: atime — access …
File atime is the last accessed time of the file, in PHP, you can get the last accessed time of any file by: $last = fileatime(‘anyfile’); You may also want to know how to get the mtime or ctime of a file.
File mtime is the last modified time of the file or the time when the last modification of the file content occurred. To get the last modified time of the file in PHP, use: $last = filemtime(‘anyfile’); Read more about how to get the ctime and atime in PHP.
File ctime may be a little misleading in nature as many would think it as the creation time of the file, but actually it’s the meta data such as the ownership or permissions change time of the file in addition to content modification. To get the ctime of a file in PHP: $last = filectime(‘anyfile’); …
PHP: Getting Last Changed Time of a File – File ctime Read More »
It’s weird that I encountered this problem that when you post new posts in WordPress, there’s a possibility that it may run into a 503 Service Temporarily Unavailable error without publishing the article at all. I did some split tests and in this post, the string ‘fopen‘ which is a php function seems to be …
As I said how to parse php program command line arguments in the previous post, reading from user keyboard or console is also a considerable part of making interactive command line programs. How to let user type in something and make the php script read from the keyboard so that it can identify the user …
PHP: Read from Keyboard – Get User Input from Keyboard Console by Typing Read More »
PHP is a lot more than just HTML rendering and outputting. It can also be run from shell command line like any legacy command line programs or tools we had in DOS and Linux shell. One of the major problem is to deal with arguments passed to such program and how to identify them inside …
Dealing with PHP command line programs / scripts run on shell and the arguments Read More »
Recommended to me by many fellows at cnsw.org, I’ve always been a fan of pair.com when I started in early 2006 into the world of online venture. They rarely advertise online (or maybe I just don’t know), and are hardly heard of by many hosting customers even after they have done plenty of research of …
Hosting Differences between Pair.com and PairLite.com Read More »
Update: There’s a better uptime tracking and connection / downloading speed monitor tool to test the responsiveness of your website, it’s Host Tracker. But be prepared that it may consume quite some MBs of bandwidth of your server because it sends HTTP requests from well over half a hundred places around the world. Update: Yet …
WordPress does a great job in smoothing the user experience of the blog administration control panel. Ever wonder how they have styled all those buttons with such touchy appearance? Well the originator is the man in blue: button { border-left: 3px double #CCCCCC; border-right: 3px double #999999; border-top: 3px double #CCCCCC; border-bottom: 3px double #999999; …
CSS: Styling WordPress Administration Control Panel Buttons Read More »
Passwords are indisputably one of the most sensitive data types to deal with for web developers, especially back end developers who are in charge of PHP and MySQL. Storing passwords is not tricky considering you are just required to do a one-way conversion of them: $password = ‘ilovjenny84’; $salt = ‘SHAKY SHARKY 333’; // whatever …
Millions of people in the web world digg Smashing Magazine for the full-fledged articles they publish that seem to be useful at first glance. Yeah, why not, at least they are all eye-candies with big titles. While I myself enjoyed a few series back when they just started, many posts serve as great references to …
Well the title may be a little misleading in that I got only one working hosting coupon of Pair.com. I haven’t personally purchased any service from this hosting company but almost all the reviews about them I came across are positive. To waive the setup fee and enjoy a 10% discount, use the coupon: THG …
Pair.com Hosting Coupons and Promo Codes (Bonus: Pair.com Control Panel Screenshots) Read More »
There might be a possibility that you want the current users to keep engaging with each other in the phpBB forum and to disable further user registrations. To disable user registration, simply log in the phpBB administration panel and go to: ACP => General => User registration settings => Account activation => disable While it …
Architecturally Firefox is no better than IE in any way. But their marketing strategy is so superior that so many people digg FF voluntarily without knowing they are just being sold to. Mozilla’s success lie heavily in coming in alliance with Google and web standards (related organizations and evangelists and such) rather than the inherent …
As everyone who’s well trained in software engineering would agree, that one of the principle of writing predictable code is to separate and hide something within only the scope that it’s needed. Controlled access to and from the outside world brings predictability and accountability of your code thus better debugging. In jQuery, you need constantly …
jQuery: Protecting or hiding variables / functions in a specific local scope Read More »
