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What is the difference between the | and || or operators?
I have always used || (two pipes) in OR expressions, both in C# and PHP. Occasionally I see a single pipe used: | . What is the difference between those two usages? Are there any caveats when using one over the other or are they interchangeable?
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(13: Permission denied) while connecting to upstream:[nginx]
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thanks. I needed to yum install policycoreutils-python in order to get audit2allow first. Reference: centos.org/forums/viewtopic.php?t=5012
– gross.jonas
Nov 13 '14 at 9:57
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What is the difference between window, screen, and document in Javascript?
...at about the document object then? The document object is your html, aspx, php, or other document that will be loaded into the browser. The document actually gets loaded inside the window object and has properties available to it like title, URL, cookie, etc. What does this really mean? That means i...
How to convert NSDate into unix timestamp iphone sdk?
...from a PHP database online and then this one. I want to compare the two in order to make a decision to download the latest data about an object.
– JeroenEijkhof
May 29 '11 at 23:22
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How to run test methods in specific order in JUnit4?
I want to execute test methods which are annotated by @Test in specific order.
18 Answers
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Real escape string and PDO [duplicate]
...escape_string() with the PDO::quote() method.
Here is an excerpt from the PHP website:
<?php
$conn = new PDO('sqlite:/home/lynn/music.sql3');
/* Simple string */
$string = 'Nice';
print "Unquoted string: $string\n";
print "Quoted string: " . $conn->quote($string) . "\n";...
Android Studio says “cannot resolve symbol” but project compiles
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Try changing the order of dependencies in File > Project Structure > (select your project) > Dependencies.
Invalidate Caches didn't work for me, but moving my build from the bottom of the list to the top did.
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Select first row in each GROUP BY group?
...OW_NUMBER() OVER(PARTITION BY p.customer
ORDER BY p.total DESC) AS rk
FROM PURCHASES p)
SELECT s.*
FROM summary s
WHERE s.rk = 1
Supported by any database:
But you need to add logic to break ties:
SELECT MIN(x.id), -- change to MAX if you want the hi...
String length in bytes in JavaScript
... variable that can result in a mismatch. UTF-8 should be the network-byte-order of character encodings.
– Mike Samuel
Apr 1 '11 at 21:34
4
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mysql -> insert into tbl (select from another table) and some default values [duplicate]
... you can do something like this:
INSERT INTO course_payment
SELECT NULL, order_id, payment_gateway, total_amt, charge_amt, refund_amt, NOW()
FROM orders ORDER BY order_id DESC LIMIT 10;
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