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How to convert string to boolean php
...lean true unless they have a value that's considered "empty" by PHP (taken from the documentation for empty):
"" (an empty string);
"0" (0 as a string)
If you need to set a boolean based on the text value of a string, then you'll need to check for the presence or otherwise of that value.
$test...
How do you determine which backend is being used by matplotlib?
Either interactively, such as from within an Ipython session, or from within a script, how can you determine which backend is being used by matplotlib?
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Remove DEFINER clause from MySQL Dumps
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The sed command does not remove DEFINER clause from procedures and functions. Here is the enhanced version that handles views, triggers, procedures and functions: sed -e 's/DEFINER[ ]*=[ ]*[^*]*\*/\*/' | sed -e 's/DEFINER[ ]*=[ ]*[^*]*PROCEDURE/PROCEDURE/' | sed -e 's/DE...
jQuery SVG, why can't I addClass?
...sions prior to 3.0 use the className property for these functions.
Excerpt from jQuery attributes/classes.js:
cur = elem.nodeType === 1 && ( elem.className ?
( " " + elem.className + " " ).replace( rclass, " " ) :
" "
);
This behaves as expected for HTML elements, but for SVG elemen...
How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
I would like to write a single SQL command to drop multiple columns from a single table in one ALTER TABLE statement.
11 ...
Valid to use (anchor tag) without href attribute?
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The <a>nchor element is simply an anchor to or from some content. Originally the HTML specification allowed for named anchors (<a name="foo">) and linked anchors (<a href="#foo">).
The named anchor format is less commonly used, as the fragment identifier is n...
ctypes - Beginner
...ple? I am able to load my library but I am not able to access my functions from the .dll file. It always says "function 'xyz' not found". Could you suggest me a way around this? Cheers.
– Neophile
Sep 13 '11 at 11:32
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How to check if running as root in a bash script
...ruser another name.
I think the best way when using bash is to use $EUID, from the man page:
EUID Expands to the effective user ID of the current user, initialized
at shell startup. This variable is readonly.
This is a better way than $UID which could be changed and not reflect the r...
MemoryCache does not obey memory limits in configuration
...is point, and I have no idea how to start finding out what it does there. From what I've observed though it does a horrible job of trying to approximate the size of the overall thing.
The third noticeable thing there is the call to manager.UpdateCacheSize which sounds like it should do something...
How to get the client IP address in PHP [duplicate]
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Whatever you do, make sure not to trust data sent from the client. $_SERVER['REMOTE_ADDR'] contains the real IP address of the connecting party. That is the most reliable value you can find.
However, they can be behind a proxy server in which case the proxy may have set th...