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How can I check if a URL exists via PHP?
...
Here:
$file = 'http://www.example.com/somefile.jpg';
$file_headers = @get_headers($file);
if(!$file_headers || $file_headers[0] == 'HTTP/1.1 404 Not Found') {
$exists = false;
}
else {
$exists = true;
}
From here and right below the above...
How do I find all installed packages that depend on a given package in NPM?
...
You can use https://www.npmjs.com/package/npm-dependents to find dependents that are not installed.
Update: I see the package is broken, but it still may be a good starting point where the author points out a place where it may be breaking: htt...
Passing a URL with brackets to curl
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--globoff (or the short-option version: -g)
Ex:
curl --globoff https://www.google.com?test[]=1
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What is the difference between server side cookie and client side cookie?
... on the browser.
Browser request example:
GET /index.html HTTP/1.1
Host: www.example.com
Example answer from the server:
HTTP/1.1 200 OK
Content-type: text/html
Set-Cookie: foo=10
Set-Cookie: bar=20; Expires=Fri, 30 Sep 2011 11:48:00 GMT
... rest of the response
Here two cookies foo=10 and b...
What does upstream mean in nginx?
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server 127.0.0.1:8003;
}
server {
listen 80;
server_name www.domain.com;
location / {
proxy_pass http://myproject;
}
}
}
This means all requests for / go to the any of the servers listed under upstream XXX, with a preference for port 8000.
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Static variables in JavaScript
...tion = 'A fact-based journey through the galaxy.';
this.link = 'http://www.astronomycast.com';
// for read access to _somePrivateVariable via immutableProp
this.immutableProp = function() {
return _somePrivateVariable;
}
// object function
this.toString = function(...
Launching Google Maps Directions via an intent on Android
...ven if google maps app is missing it will open in browser
Example https://www.google.com/maps/dir/?api=1&origin=81.23444,67.0000&destination=80.252059,13.060604
Uri.Builder builder = new Uri.Builder();
builder.scheme("https")
.authority("www.google.com")
.appendPath("maps")
.ap...
Android Quick Actions UI Pattern
...rced by Google, you may want to take a look at this implementation:
http://www.londatiga.net/it/how-to-create-quickaction-dialog-in-android/
Really easy to use and works great.
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Border around tr element doesn't show?
... @edi9999 - I recommend using a reset stylesheet. Check this out http://www.cssreset.com/
– Black Sheep
Sep 8 '13 at 0:06
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Is it OK to use == on enums in Java?
... for any two enums that are the same, == will be true.
Reference:
http://www.ajaxonomy.com/2007/java/making-the-most-of-java-50-enum-tricks
(couldn't find anything in the Sun docs)
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