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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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Formatting numbers (decimal places, thousands separators, etc) with CSS
...avascript once it's in the DOM or format it via your language server-side (PHP/ruby/python etc.)
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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";...
Prefer composition over inheritance?
...ifference, it's easier to explain.
Procedural Code
An example of this is PHP without the use of classes (particularly before PHP5). All logic is encoded in a set of functions. You may include other files containing helper functions and so on and conduct your business logic by passing data around i...
How to write character & in android strings.xml
...ere is a nice reference page: http://jrgraphix.net/research/unicode_blocks.php?block=0
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How to make MySQL handle UTF-8 properly
...r should be in UTF-8 (see my.cnf). remember any languages you use (such as PHP) must be UTF-8 as well. Some versions of PHP will use their own MySQL client library, which may not be UTF-8 aware.
If you do want to migrate existing data remember to backup first! Lots of weird choping of data can hap...
Absolute vs relative URLs
... can be overcome with dynamic URLs and/or base tags.
<a href=“/index.php?q=”>.example.com/index.php?q=</a>
Root Relative Pros:
Configurable - The base tag makes them relative to any root you choose making switching domains and implementing templates easy.
Relative
Relative ...
Fastest Way to Find Distance Between Two Lat/Long Points
...DIT: Can this be put into one SQL statement?
I have no idea what mySql or Php is capable of, sorry.
I don't know where the best place is to build the four points, or how they could be passed to a mySql query in Php. However, once you have the four points, there's nothing stopping you combining your...
What is the best way to prevent session hijacking?
...nt != $_SESSION['ident'])
{
end_session();
header("Location: login.php");
// add some fancy pants GET/POST var headers for login.php, that lets you
// know in the login page to notify the user of why they're being challenged
// for login again, etc.
}
What this does is capture ...
How to get year/month/day from a date object?
...Use the Date get methods.
http://www.tizag.com/javascriptT/javascriptdate.php
http://www.htmlgoodies.com/beyond/javascript/article.php/3470841
var dateobj= new Date() ;
var month = dateobj.getMonth() + 1;
var day = dateobj.getDate() ;
var year = dateobj.getFullYear();
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