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Please explain the exec() function and its family
...rocess.
But a parent and child differs in some of the PCB(process control block) attributes. These are:
PID - Both child and parent have a different Process ID.
Pending Signals - The child doesn’t inherit Parent’s pending signals. It will be empty for the child process when created.
Memory Lo...
Centering a background image, using CSS
...
screenshot - imagevat.com/picview.php?ig=6179 I am not sure how to upload images to jsfiddle, if you can help me out there jsfiddle.net/yWrQP
– X10nD
Apr 15 '10 at 7:52
...
Center a position:fixed element
...
The internal box needs to be display: inline-block for this to work. (Some other display values might also work, such as table.)
– Brilliand
Jul 19 '13 at 21:00
...
Generate random int value from 3 to 6
...details check this: https://www.techonthenet.com/sql_server/functions/rand.php
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HTML5 textarea placeholder not appearing
...hite spaces between the commas and the variables.
example using twig for php framework symfony :
<input type="text" name="subject" value="{{ subject }}" placeholder="hello" /> <-- this is ok
<input type="text" name="subject" value" {{ subject }} " placeholder="hello" /> ...
Vim: Close All Buffers But This One
...You could use this script from vim.org:
http://www.vim.org/scripts/script.php?script_id=1071
Just put it to your .vim/plugin directory and then use :BufOnly command to close all buffers but the active one. You could also map it elsewhere you like in your .vimrc.
Source on Github (via vim-scripts ...
Repeat table headers in print mode
..."text/css" media="screen">
thead
{
display: block;
}
tfoot
{
display: block;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table style="width: 500px; ma...
SQL - Update multiple records in one query
...
Camille's solution worked. Turned it into a basic PHP function, which writes up the SQL statement. Hope this helps someone else.
function _bulk_sql_update_query($table, $array)
{
/*
* Example:
INSERT INTO mytable (id, a, b, c)
VALUES...
Convert objective-c typedef to its string equivalent
... way of doing this:
// Place this in your .h file, outside the @interface block
typedef enum {
JPG,
PNG,
GIF,
PVR
} kImageType;
#define kImageTypeArray @"JPEG", @"PNG", @"GIF", @"PowerVR", nil
// Place this in the .m file, inside the @implementation block
// A method to convert an...
Daylight saving time and time zone best practices [closed]
...ing JavaScript, use moment.js with the moment-timezone extension.
If using PHP > 5.2, use the native time zones conversions provided by DateTime, and DateTimeZone classes. Be careful when using DateTimeZone::listAbbreviations() - see answer. To keep PHP with up to date Olson data, install periodi...