PHP Exercises : Get the current file name
PHP : Exercise-7 with Solution
Write a PHP script to get the current file name.
Computer file:
A computer file is a computer resource on a computer that stores data, information, picture, video, settings, or commands used with a computer program. In a graphical user interface an operating system displays a file as an icon.
Sample Solution: -
PHP Code:
<?php
$current_file_name = basename($_SERVER['PHP_SELF']);
echo $current_file_name."\n";
?>
Sample Output:
5c019960-58d0-11e7-8ce0-bdc69d807a6b.php
Flowchart:
PHP Code Editor:
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PHP: Tips of the Day
How to Sort Multi-dimensional Array by Value?
Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:
Example:
function sortByOrder($a, $b) { return $a['order'] - $b['order']; } usort($myArray, 'sortByOrder');
Starting in PHP 5.3, you can use an anonymous function:
usort($myArray, function($a, $b) { return $a['order'] - $b['order']; });
And finally with PHP 7 you can use the spaceship operator:
usort($myArray, function($a, $b) { return $a['order'] <=> $b['order']; });
To extend this to multi-dimensional sorting, reference the second/third sorting elements if the first is zero - best explained below. You can also use this for sorting on sub-elements.
usort($myArray, function($a, $b) { $retval = $a['order'] <=> $b['order']; if ($retval == 0) { $retval = $a['suborder'] <=> $b['suborder']; if ($retval == 0) { $retval = $a['details']['subsuborder'] <=> $b['details']['subsuborder']; } } return $retval; });
If you need to retain key associations, use uasort() - see comparison of array sorting functions in the manual
Ref : https://bit.ly/3i77vCC
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