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Declaring variables inside or outside of a loop
...ew string in each iteration of the loop, then you could optimize things by allocating the StringBuilder outside the loop. But still, this is not an advisable practice. If you do it without a very good reason, it is a premature optimization.
– Mike Nakis
Jan 11 ...
How can I detect if the user is on localhost in PHP?
...y web application is on the server it resides on? If I remember correctly, PHPMyAdmin does something like this for security reasons.
...
How do I check if a directory exists? “is_dir”, “file_exists” or both?
...hink realpath() may be the best way to validate if a path exist
http://www.php.net/realpath
Here is an example function:
<?php
/**
* Checks if a folder exist and return canonicalized absolute pathname (long version)
* @param string $folder the path being checked.
* @return mixed returns the ...
How can I get the last 7 characters of a PHP string?
...r for the 2nd argument.
$newstring = substr($dynamicstring, -7);
From the php docs:
string substr ( string $string , int $start [, int $length ] )
If start is negative, the returned string will start at the start'th character from the end of string.
...
how to convert array values from string to int?
... this is horrible, especially when it's faster than a map + to_int! php, how could it have come that far...
– phoet
Jun 17 '15 at 7:26
3
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.htaccess: Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included i
I have this error when trying to browse php files locally
8 Answers
8
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How can I concatenate NSAttributedStrings?
...
NSMutableAttributedString *mutableAttString = [[NSMutableAttributedString alloc] init];
NSString *plainString = // ...
NSDictionary *attributes = // ... a dictionary with your attributes.
NSAttributedString *newAttString = [[NSAttributedString alloc] initWithString:plainString attributes:attribute...
How to access route, post, get etc. parameters in Zend Framework 2
... way to get a posted json string, for example, is to read the contents of 'php://input' and then decode it. For example i had a simple Zend route:
'save-json' => array(
'type' => 'Zend\Mvc\Router\Http\Segment',
'options' => array(
'route' => '/save-json/',...
Why would json_encode return an empty string
I have a simple php structure with 3 nested arrays.
13 Answers
13
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receiver type *** for instance message is a forward declaration
...of other stuff wrong with your code.
You're -init'ing an object without +alloc'ing it. That won't work
You're declaring an object as a non-pointer type, that won't work either
You're not calling [super init] in -init.
You've declared the class using @class in the header, but never imported the cla...