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select count(*) from table of mysql in php
... removed entirely in 7. Let's make it easier to upgrade and start using it now.
$dbh = new \PDO($dsn, $user, $password);
$sth = $dbh->prepare('SELECT count(*) as total from Students');
$sth->execute();
print_r($sth->fetchAll());
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C# Object Pooling Pattern implementation
...This question is a little trickier than one might expect due to several unknowns: The behaviour of the resource being pooled, the expected/required lifetime of objects, the real reason that the pool is required, etc. Typically pools are special-purpose - thread pools, connection pools, etc. - becau...
Remove specific characters from a string in Python
...ic characters from a string using Python. This is the code I'm using right now. Unfortunately it appears to do nothing to the string.
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MySQL InnoDB not releasing disk space after deleting data rows from table
... of the original one, and doing so used up all the space on the partition. Now "optimize table" failed and I'm left with no space on the partition even after I dropped the entire db... very disappointing.
– basilikode
Apr 20 '15 at 20:43
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Delete Local Folder in TFS
...select Changeset 1, the files will be deleted locally and the server will know this. The color of the file in the Source Control explorer will go from black to gray and will have the phrase "Not downloaded" in the latest column.
Changeset 1 is a special changeset on your Team Foundation Server inst...
Comma separator for numbers in R?
...ave been true in the past that comma_format didn't handle real numbers but now you can do the following: scales::comma_format(digits = 12)(1000000.789) which results in the following: "1,000,000.789".
– steveb
Mar 20 '17 at 18:50
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Why use 'git rm' to remove a file instead of 'rm'?
... you may want to do a git stash, but I'm relatively new to git so I don't know the exact command. If you have come here in or after 2014, I hope this answer was useful to you.
– Eric Hepperle - CodeSlayer2010
Nov 24 '14 at 19:14
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JavaScript implementation of Gzip [closed]
...ages/lz-string/index.html (Thanks to pieroxy in the comments).
I don't know of any gzip implementations, but the jsolait library (the site seems to have gone away) has functions for LZW compression/decompression. The code is covered under the LGPL.
// LZW-compress a string
function lzw_encode(s)...
The name 'InitializeComponent' does not exist in the current context
...ibrary or project. The reason for this error is that the project does not know it's building a WPF control or window and therefore tries to build it as a C# 2.0 project.
The solution involves editing the .csproj file. Right click on the project causing the problem and select “Unload Project”. ...
Invalid argument supplied for foreach()
...able to remove the other two classes, @Kris. They both extend Traversable now and seem to have been born that way in 5.0.0. Though I'm feeling a tiny doubt as to whether instanceof always applied to extends.
– Bob Stein
Mar 8 '14 at 10:44
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