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What's the difference between echo, print, and print_r in PHP?
...(if it's an array or an object). print_r prints a variable in a more human-readable form: strings are not quoted, type information is omitted, array sizes aren't given, etc.
var_dump is usually more useful than print_r when debugging, in my experience. It's particularly useful when you don't know e...
What's the difference between git reset --mixed, --soft, and --hard?
...
git reset --soft A and you will see B and C's stuff in green (staged and ready to commit)
git reset --mixed A (or git reset A) and you will see B and C's stuff in red (unstaged and ready to be staged (green) and then committed)
git reset --hard A and you will no longer see B and C's changes an...
Gradle to execute Java class (without modifying build.gradle)
... @Matt This approach breaks my simple Java program that uses a Scanner to read nextLine(). Any thought on a fix for this? Keep getting "no line found" when running using runApp.
– Greg Hilston
Aug 10 '19 at 15:57
...
Why CancellationToken is separate from CancellationTokenSource?
...r inputstream of the StreamSocket? When I use cancellationtoken to cancel read operation, it also close the concerned socket. Can there be any way to overcome this issue?
– sam18
Aug 24 '16 at 6:10
...
Search All Fields In All Tables For A Specific Value (Oracle)
...-S user/pwd | grep -v "^--" | grep -v "TABLE_NAME" | grep "^[A-Z]" | while read sw;
do echo "desc $sw" | sqlplus -S user/pwd | grep -v "\-\-\-\-\-\-" | awk -F' ' '{print $1}' | while read nw;
do echo "select * from $sw where $nw='val'";
done;
done;
It yields:
select * from TBL1 where DESCRIPTION=...
How to implement a many-to-many relationship in PostgreSQL?
...use column aliases to sort out the mess. That's not helpful. Another widespread anti-pattern would be just "id" as column name.
I am not sure what the name of a bill would be. bill_id will probably suffice in this case.
price is of data type numeric to store fractional numbers precisely as entered ...
High performance fuzzy string comparison in Python, use Levenshtein or difflib [closed]
...tance
with codecs.open("titles.tsv","r","utf-8") as f:
title_list = f.read().split("\n")[:-1]
for row in title_list:
sr = row.lower().split("\t")
diffl = difflib.SequenceMatcher(None, sr[3], sr[4]).ratio()
lev = Levenshtein.ratio(sr[3], sr[4])
...
How can I remove the gloss on a select element in Safari on Mac?
...
@beanland; You have to write
-webkit-appearance:none;
in your css.
read this http://trentwalton.com/2010/07/14/css-webkit-appearance/
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What's the best manner of implementing a social activity stream? [closed]
...we only displayed events generated by a user's friends, and I believe we already had a map of the friends' userid->username in memory, so looking up the usernames didn't require a JOIN and were fast.
– heyman
Oct 7 '10 at 9:33
...
Adding asterisk to required fields in Bootstrap 3
..."" id="id_tos" name="tos" required="required" type="checkbox" /> I have read and agree to the Terms of Service
</label>
</div>
</div>
</div>
Ok third edit:
CSS back to what is was
.form-group.required .control-label:after {
content:"*";
colo...