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转：postfix安装Q&A 原文地址：http: bbs.chinaunix.net viewthread.php?tid=770141执照wangmingda老大的资料安装成功postfix（地址在这里http: www.extmail....
原文地址：http://bbs.chinaunix.net/viewthread.php?tid=770141
执照wangmingda老大...
Remove non-utf8 characters from string
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what to use instead $regex = <<<'END' for PHP < 5.3.x ?
– serhio
Apr 8 '10 at 23:00
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How to vertical align an inline-block in a line of text?
I want to create an inline-block that will take on some unknown width and height. (It'll have a table inside it with content dynamically generated). Further, the inline-block should be placed inside a line of text, such as "my text (BLOCK HERE)". To make it look pretty, I'm trying to make the blo...
Get notified when UITableView has finished asking for data?
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Posting the completion code in a block on the main queue after calling [super reloadData] works for me: dispatch_async(dispatch_get_main_queue(), ^{NSLog(@"reload complete");});. It basically leap frogs the blocks that get posted by the table view in reloadD...
Aligning a float:left div to center?
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use display:inline-block; instead of float
you can't centre floats, but inline-blocks centre as if they were text, so on the outer overall container of your "row" - you would set text-align: center; then for each image/caption container (it's...
css label width not taking effect
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Do display: inline-block:
#report-upload-form label {
padding-left:26px;
width:125px;
text-transform: uppercase;
display:inline-block
}
http://jsfiddle.net/aqMN4/
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Why am I suddenly getting a “Blocked loading mixed active content” issue in Firefox?
...a few things. To quote the most relevant bit:
Mixed Active Content is now blocked by default in Firefox 23!
What is Mixed Content?
When a user visits a page served over HTTP, their connection is open for eavesdropping and man-in-the-middle (MITM) attacks. When a user visits a page served over HTTPS...
How do I calculate tables size in Oracle
...d not be done without due care and consideration!
Then find the number of blocks occupied by the table from the generated stats:
select blocks, empty_blocks, num_freelist_blocks
from all_tables
where owner = 'MYSCHEMA'
and table_name = 'MYTABLE';
The total number of blocks allocated to th...
What are WSDL, SOAP and REST?
...sses defined in xml...
"You use SOAP just the same way that you would any PHP class. However, in this case the class does not exist in the local applications file system, but at a remote site accessed over http."
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"If we think of using a SOAP service as just another PHP class then the WSDL docum...
Does Java have a using statement?
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Java 7 introduced Automatic Resource Block Management which brings this feature to the Java platform. Prior versions of Java didn't have anything resembling using.
As an example, you can use any variable implementing java.lang.AutoCloseable in the following way...