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Javascript : Send JSON Object with Ajax?
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With jQuery:
$.post("test.php", { json_string:JSON.stringify({name:"John", time:"2pm"}) });
Without jQuery:
var xmlhttp = new XMLHttpRequest(); // new HttpRequest instance
xmlhttp.open("POST", "/json-handler");
xmlhttp.setRequestHeader("Content-Type", "appl...
file_put_contents - failed to open stream: Permission denied
... the folder
sudo chown -R www-data:www-data /var/www
that should make file_put_contents work now. But for more security you better also set the permissions like below
find /var/www -type d -print0 | xargs -0 chmod 0755 # folder
find /var/www -type f -print0 | xargs -0 chmod 0644 # files
change /v...
Node.js Web Application examples/tutorials [closed]
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The Node Knockout competition wrapped up recently, and many of the submissions are available on github. The competition site doesn't appear to be working right now, but I'm sure you could Google up a few entries to check out.
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json_encode is returning NULL?
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I bet you are retrieving data in non-utf8 encoding: try to put mysql_query('SET CHARACTER SET utf8') before your SELECT query.
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JavaScript Chart Library
...rd-based browsers, rendered as VML in IE
There are pros and cons of both approaches but for a charting library I would recommend the later because it is well integrated with DOM, allowing to manipulate charts elements with the DOM, and most importantly setting DOM events. By contrast Canvas charti...
Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
...t (which would justify the answers that suggest using CSS) does not always apply to image height and width.
Each image has an innate, original height and width that can be derived from the image data. In the framework of content vs layout, I would say that this derived height and width information...
Is there any way to change input type=“date” format?
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If the app is pt_BR, I expect a pt_BR input. my system settings doesn't matter. HTML5 need some way to enforce locale.
– iurisilvio
Jan 26 '15 at 19:14
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Computed / calculated / virtual / derived columns in PostgreSQL
...al, but makes makes life a bit easier).
Suppose my computation is md5(some_string_field), then I create the index as:
CREATE INDEX some_string_field_md5_index ON some_table(MD5(some_string_field));
Now, any queries that act on MD5(some_string_field) will use the index rather than computing it f...
What is the intent of the methods getItem and getItemId in the Android class BaseAdapter?
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I see these methods as a cleaner approach to accessing my list's data. Instead of directly accessing my adapter object via something like myListData.get(position) i can simply call the adapter like adapter.get(position).
The same goes for getItemId. Usually...
.NET HttpClient. How to POST string value?
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You should private static readonly HttpClient _client = new HttpClient(); instead aspnetmonsters.com/2016/08/2016-08-27-httpclientwrong
– Sameer Alibhai
May 9 '17 at 15:05
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