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How do I implement basic “Long Polling”?
...rror 404 (to show error handling in the coming Javascript example)
msgsrv.php
<?php
if(rand(1,3) == 1){
/* Fake an error */
header("HTTP/1.0 404 Not Found");
die();
}
/* Send a string after a random number of seconds (2-10) */
sleep(rand(2,10));
echo("Hi! Have a random number: " . ...
Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
...7)
But, there are at least two differences :
__DIR__ only exists with PHP >= 5.3
which is why dirname(__FILE__) is more widely used
__DIR__ is evaluated at compile-time, while dirname(__FILE__) means a function-call and is evaluated at execution-time
so, __DIR__ is (or, should be) faste...
Pull to refresh UITableView without UITableViewController
...able view.
Same as in the case of collection view. Just replace table view alloc with collection view.
UITableView *tableViewDemo = [[UITableView alloc]init];
tableViewDemo.frame = CGRectMake(0,0,self.view.frame.size.width,self.view.frame.size.height);
tableViewDemo.dataSource = self;
tableView...
Make a link use POST instead of GET
...ng more than you already have.
<form name="myform" action="handle-data.php" method="post">
<label for="query">Search:</label>
<input type="text" name="query" id="query"/>
<button>Search</button>
</form>
<script>
var button = document.querySelec...
isset() and empty() - what to use
... $var; (a variable declared, but without a value in a class)
From http://php.net/manual/en/function.empty.php
As mentioned in the comments the lack of warning is also important with empty()
PHP Manual says
empty() is the opposite of (boolean) var, except that no warning is
generated when...
How to add spacing between UITableViewCell
...Path
{
if (cell.IsMonth)
{
UIImageView *av = [[UIImageView alloc] initWithFrame:CGRectMake(20, 20, 20, 20)];
av.backgroundColor = [UIColor clearColor];
av.opaque = NO;
av.image = [UIImage imageNamed:@"month-bar-bkgd.png"];
UILabel *monthTextLabel = [[U...
Convert PHP closing tag into comment
One of the lines in my script contains a PHP closing tag inside a string. Under normal operation this does not cause a problem, but I need to comment out the line.
...
When do we have to use copy constructors?
...eption the object is left in an undefined state with store pointing at a deallocated part of memory (deallocate the memory ONLY after all operations that can throw have completed succesfully)). A simple solution is to use the copy swap idium.
– Martin York
Jul ...
PHP String to Float
I am not familiar with PHP at all and had a quick question.
8 Answers
8
...
Why use sprintf function in PHP?
I am trying to learn more about the PHP function sprintf() but php.net did not help me much as I am still confused, why would you want to use it?
...