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PHP: How to remove all non printable characters in a string?
...you can rip out everything from 0-31 and 127-255 with this:
$string = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $string);
It matches anything in range 0-31, 127-255 and removes it.
8 bit extended ASCII?
You fell into a Hot Tub Time Machine, and you're back in the eighties.
If you've got some...
Setting JDK in Eclipse
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I had to change my JAVA_HOME environment variable to the JDK's folder too, and the JRE was not enough.
– Noumenon
Sep 10 '15 at 0:57
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What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...per has exceeded the daily limit on requests.
And indeed they do:
PAYMENT_REQUIRED (402)
A daily budget limit set by the developer has been reached.
The requested operation requires more resources than the quota allows. Payment is required to complete the operation.
The requested operation requir...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...Hash keys are "simple" symbols (more or less something that matches /\A[a-z_]\w*\z/i, AFAIK the parser uses its label pattern for these keys).
The :$in style symbols show up a fair bit when using MongoDB so you'll end up mixing Hash styles if you use MongoDB. And, if you ever work with specific key...
Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
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http://wiki.postgresql.org/wiki/Transactional_DDL_in_PostgreSQL:_A_Competitive_Analysis provides an overview of this issue from PostgreSQL's perspective.
Is DDL transactional according to this document?
PostgreSQL - yes
MySQL - no; DDL causes an implicit commit
Oracl...
HintPath vs ReferencePath in Visual Studio
...ntrol as well:
https://msdn.microsoft.com/en-us/library/ee817675.aspx#tdlg_ch4_includeoutersystemassemblieswithprojects
Excerpt:
To include and then reference an outer-system assembly
1. In Solution Explorer, right-click the project that needs to reference the assembly,,and then click Add Existi...
What are the most-used vim commands/keypresses?
...dows
^Wn new window
^Wj down to next window; ^Wk up to previous window
^W_ maximise current window; ^W= make all windows equal size
^W+ increase window size; ^W- decrease window size
Source Navigation
% jump to matching parenthesis/bracket/brace, or language block if language module loaded
gd ...
How do I add a tool tip to a span element?
... :D And this article aided in my confusion : htmlgoodies.com/tutorials/html_401/article.php/3479661/… where it says that the tooltip works for the "text"
– Augiwan
Jan 23 '13 at 13:50
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What's the difference of “./configure” option “--build”, “--host” and “--target”?
...et platforms .. you can get them here: gnu.org/software/gettext/manual/html_node/config_002eguess.html
– wirtsi
Jul 17 '19 at 15:11
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Do HTML WebSockets maintain an open connection for each client? Does this scale?
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@ArnaudBouchez check en.wikipedia.org/wiki/HTTP_persistent_connection#HTTP_1.1 WebSockets are open as long as you want and are not hackish (like long-polling and other alternatives).
– kaoD
Feb 21 '15 at 19:20
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