大约有 28,000 项符合查询结果（耗时：0.0367秒） [XML]
Why check both isset() and !empty()
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isset() tests if a variable is set and not null:
http://us.php.net/manual/en/function.isset.php
empty() can return true when the variable is set to certain values:
http://us.php.net/manual/en/function.empty.php
To demonstrate this, try the following code with $the_var un...
Casting to string in JavaScript
...ned" as a string
var myString3 = foo.toString(); // throws an exception
http://jsfiddle.net/f8YwA/
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Checking if a field contains a string
...on, like shown below:
db.users.findOne({"username" : /.*son.*/i});
See: http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-RegularExpressions
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Maximum length for MySQL type text
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See for maximum numbers:
http://dev.mysql.com/doc/refman/5.0/en/storage-requirements.html
TINYBLOB, TINYTEXT L + 1 bytes, where L < 2^8 (255 Bytes)
BLOB, TEXT L + 2 bytes, where L < 2^16 (64 Kilobytes)
MEDIUMBLOB, MEDI...
$PHP_AUTOCONF errors on mac os x 10.7.3 when trying to install pecl extensions
I am trying to setup my machine with pecl_http and memcache and in both cases, I get similar errors. This is on MAC OS X 10.7.3 (lion) and I also have XCODE installed on it. I also installed Zend Server community edition before running these commands and have CFLAGS='-arch i386 -arch x86_64' environ...
How to set the prototype of a JavaScript object that has already been instantiated?
...ike modifying __proto__, they won't optimize your code at all.
This posts https://bugzilla.mozilla.org/show_bug.cgi?id=607863 specifically discusses current implementations of __proto__ and the differences between them. Every implementation does it differently, because it's a hard and unsolved prob...
Load image from url
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URL url = new URL("http://image10.bizrate-images.com/resize?sq=60&uid=2216744464");
Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
imageView.setImageBitmap(bmp);
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How do I fetch a single model in Backbone?
...at you have implemented controllers with the hashbang in your URL like so, http://www.mydomain.com/#clocks/123 , but it should work even if you haven't yet.
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How to parse JSON data with jQuery / JavaScript?
... function to loop through the data:
$.ajax({
type: 'GET',
url: 'http://example/functions.php',
data: { get_param: 'value' },
dataType: 'json',
success: function (data) {
$.each(data, function(index, element) {
$('body').append($('<div>', {
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Hidden Features of Visual Studio (2005-2010)?
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Sara Ford covers lots of lovely tips: http://blogs.msdn.com/saraford/archive/tags/Visual+Studio+2008+Tip+of+the+Day/default.aspx
But some of my favourites are Code Snippets, Ctrl + . to add a using <Namespace> or generate a method stub.
I can't live withou...