大约有 47,000 项符合查询结果（耗时：0.0683秒） [XML]
Can PHP cURL retrieve response headers AND body in a single request?
...cumentation comments: http://www.php.net/manual/en/function.curl-exec.php#80442
Code example:
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
// ...
$response = curl_exec($ch);
// Then, after your curl_exec call:
$header_size = curl_getinfo($ch,...
How to find duplicates in 2 columns not 1
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edited Mar 13 '09 at 13:39
answered Mar 13 '09 at 13:20
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Cannot add or update a child row: a foreign key constraint fails
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– Brian Driscoll
Feb 15 '11 at 15:20
Hmm... it's definitely not a good idea to mix named parameters with unnamed para...
Capture HTML Canvas as gif/jpg/png/pdf?
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answered Aug 18 '10 at 16:37
donohoedonohoe
12.7k44 gold badges3333 silver badges5454 bronze badges
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Best data type to store money values in MySQL
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edited Jun 26 '17 at 14:05
answered Oct 23 '12 at 12:26
j...
How to implement a binary tree?
... print(str(node.v) + ' ')
self._printTree(node.r)
# 3
# 0 4
# 2 8
tree = Tree()
tree.add(3)
tree.add(4)
tree.add(0)
tree.add(8)
tree.add(2)
tree.printTree()
print(tree.find(3).v)
print(tree.find(10))
tree.deleteTree()
tree.printTree()
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Fast way to discover the row count of a table in PostgreSQL
...sts in a given schema
TABLESAMPLE SYSTEM (n) in Postgres 9.5+
SELECT 100 * count(*) AS estimate FROM mytable TABLESAMPLE SYSTEM (1);
Like @a_horse commented, the newly added clause for the SELECT command might be useful if statistics in pg_class are not current enough for some reason. For exa...
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
...w numberOfRowsInSection:(NSInteger)section
{
NSInteger numberOfRows = 0;
NSFetchedResultsController *fetchController = [self fetchedResultsControllerForTableView:tableView];
NSArray *sections = fetchController.sections;
if(sections.count > 0)
{
id <NSFetchedResult...
Disabled UIButton not faded or grey
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190
You can use following code:
sendButton.enabled = YES;
sendButton.alpha = 1.0;
or
sendButton...