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Where do I put image files, css, js, etc. in Codeigniter?
...ing on my setup, something similar to:
application/helpers/utility_helper.php:
function asset_url(){
return base_url().'assets/';
}
I will usually keep common routines similar to this in the same file and autoload it with codeigniter's autoload configuration.
Note: autoload URL helper fo...
Update a record without first querying?
...teStoreCommand
("UPDATE items SET itemstatus = 'some status' WHERE id = 123 ");
For performance reasons, you may want to pass in variables instead of a single hard coded SQL string. This will allow SQL Server to cache the query and reuse with parameters. Example:
dataEntity.ExecuteStoreComma...
What's the deal with a leading underscore in PHP class methods?
While looking over various PHP libraries I've noticed that a lot of people choose to prefix some class methods with a single underscore, such as
...
How to check if a string contains only digits in Java [duplicate]
... all be "true"
System.out.println("1".matches(regex));
System.out.println("12345".matches(regex));
System.out.println("123456789".matches(regex));
// negative test cases, should all be "false"
System.out.println("".matches(regex));
System.out.println("foo".matches(regex));
System.out.println("aa123...
What does a \ (backslash) do in PHP (5.3+)?
What does a \ do in PHP?
4 Answers
4
...
How can I split a comma delimited string into an array in PHP?
...
One way is to use count() (aka sizeof) - php.net/manual/en/function.count.php
– Matthew Groves
Nov 11 '15 at 13:19
2
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Remove empty array elements
...ments that are i.e. exact string '0', you will need a custom callback:
// PHP 7.4 and later
print_r(array_filter($linksArray, fn($value) => !is_null($value) && $value !== ''));
// PHP 5.3 and later
print_r(array_filter($linksArray, function($value) { return !is_null($value) && $...
How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
...
PHP 7+
As of PHP 7, this task can be performed simply by using the Null coalescing operator like this :
echo !empty($address['street2']) ?? 'Empty';
...
Find out HTTP method in PHP [duplicate]
...e superglobals alternatives (Is using superglobals directly good or bad in PHP? and similar questions), one may instead use automatic sanitizing
filter_input( \INPUT_SERVER, 'REQUEST_METHOD', \FILTER_SANITIZE_SPECIAL_CHARS )
(you might of course use other filter, eg. FILTER_SANITIZE_STRING - see ...
PHP中的错误处理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
PHP中的错误处理程序只要在运行，就免不了会出现错误！或早或晚，只是时间问题罢了。错误很常见，比如Notice，Warning等等。此时一般使用set_error_handler...程序只要在运行，就免不了会出现错误！或早或晚，只是时间问题罢了。...