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Can I Replace Apache with Node.js?
...e a website running on CentOS using the usual suspects (Apache, MySQL, and PHP). Since the time this website was originally launched, it has evolved quite a bit and now I'd like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm wonder...
Two-way encryption: I need to store passwords that can be retrieved
...there is much more to note...
How do I encrypt and decrypt a password in PHP?
See below for a strong class that takes care of everything for you:
What is the safest algorithm to encrypt the passwords with?
safest? any of them. The safest method if you're going to encrypt is to protect against ...
Difference between and
... get submitted.
Sample HTML form (index.html):
<form action="checkout.php" method="POST">
<!-- this won't get submitted despite being named -->
<input type="button" name="button1" value="a button">
<!-- this one does; so the input's TYPE is important! -->
<inpu...
How can I count all the lines of code in a directory recursively?
We've got a PHP application and want to count all the lines of code under a specific directory and its subdirectories. We don't need to ignore comments, as we're just trying to get a rough idea.
...
C# short/long/int literal format?
...by F or f is of type float. For example, the literals 1f, 1.5f, 1e10f, and 123.456F are all of type float.
A real literal suffixed by D or d is of type double. For example, the literals 1d, 1.5d, 1e10d, and 123.456D are all of type double.
A real literal suffixed by M or m is of type decimal. For ex...
PHP regular expressions: No ending delimiter '^' found in
...
PHP regex strings need delimiters. Try:
$numpattern="/^([0-9]+)$/";
Also, note that you have a lower case o, not a zero. In addition, if you're just validating, you don't need the capturing group, and can simplify the rege...
SQL query for finding records where count > 1
...p int(11) not null,
dt date not null
);
insert into payment values
(1,123,55555,'2009-12-12'),
(1,123,66666,'2009-12-12'),
(1,123,77777,'2009-12-13'),
(2,456,77777,'2009-12-14'),
(2,456,77777,'2009-12-14'),
(2,789,77777,'2009-12-14'),
(2,789,77777,'2009-12-14');
select foo.user_id, foo.cnt fro...
How do I create a comma-separated list from an array in PHP?
...ut it's always a pain having to take off the final comma. Is there an easy PHP way of doing it?
12 Answers
...
PHP variables in anonymous functions
I was playing around with anonymous functions in PHP and realized that they don't seem to reach variables outside of them.
Is there any way to get around this problem?
...
How to convert an image to base64 encoding?
...ts("/path/to/image.jpg");
// alternatively specify an URL, if PHP settings allow
$base64 = base64_encode($imagedata);
bear in mind that this will enlarge the data by 33%, and you'll have problems with files whose size exceed your memory_limit.
...