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PHP: How to check if image file exists?
...filename in quotation marks at least (as string):
if (file_exists('http://www.mydomain.com/images/'.$filename)) {
… }
Also, make sure $filename is properly validated. And then, it will only work when allow_url_fopen is activated in your PHP config
...
MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
...d to recheck that your game still works. What if you want to create a desktop and a web app? If your view-model contains the game logic, it would become complicated trying to maintain these two applications side-by-side as the application logic would inevitably be bound up with the business logic ...
How to go up a level in the src path of a URL in HTML?
...server any place other than the specified web folders.
Eg. does not work: www.mywebsite.com/../images
As a workaround, I use Symlinks:
Go to the directory of www.mywebsite.com
Run the command ln -s ../images images
Now www.mywebsite.com/images will point to www.mywebsite.com/../images
...
What is a magic number, and why is it bad? [closed]
...at you do is you have the 50 in different places - your SQL script (SELECT TOP 50 * FROM orders), your Website (Your Last 50 Orders), your order login (for (i = 0; i < 50; i++)) and possibly many other places.
Now, what happens when someone decides to change 50 to 25? or 75? or 153? You now have...
What are the differences between the threading and multiprocessing modules?
... or GUI app is to allow you to do long-running "background tasks" without stopping the main thread from continuing to service network packets or GUI events. And that works just fine with Python threads. (In technical terms, this means Python threads give you concurrency, even though they don't give ...
How to open a new tab using Selenium WebDriver?
...g 3 URL's, ? driver.switchTo().window(tabs.get(1)); driver.get("https://www.stackoverflow.com"); Thread.sleep(2000); driver.switchTo().window(tabs.get(2)); driver.get("https://www.flipkart.com"); Thread.sleep(2000); driver.close(); driver.switchTo().window(tabs.get(1...
How to use 'cp' command to exclude a specific directory?
...e e.g. from remote server to local machine: $ rsync user@example.com:/var/www/mypage /var/www/mylocalpage/ or from local to remote $ rsync /var/www/mylocalpage/ user@example.com:/var/www/mypage
– sobi3ch
Nov 18 '15 at 21:45
...
org.xml.sax.SAXParseException: Content is not allowed in prolog
...xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.xyz.com/Services/CommonTypes" elementFormDefault="qualified"
xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:CommonTypes="http://www.xyz.com/Services/CommonTypes"&g...
Text size and different android screen sizes
...nt to use for
tablet-style devices, you might determine that the layout stops
working well when the screen is less than 600dp wide. This threshold
thus becomes the minimum size that you require for your tablet layout.
As such, you can now specify that these layout resources should be
used ...
How to extract img src, title and alt from html using php? [duplicate]
...ful (click again to undo)" />
[3] => <img src="http://www.gravatar.com/avatar/df299babc56f0a79678e567e87a09c31?s=32&d=identicon&r=PG" height=32 width=32 alt="gravatar image" />
[4] => <img class="vote-up" src="/content/img/vote-arrow-up.png" alt="vot...