PHP for loop Exercises: Print alphabet pattern U
PHP for loop: Exercise-33 with Solution
Write a PHP program to print alphabet pattern 'U'.
Pictorial Presentation:
Sample Solution:
PHP Code:
<?php
for ($row=0; $row<7; $row++)
{
for ($column=0; $column<=7; $column++)
{
if ((($column == 1 or $column == 5) and $row != 6) or ($row == 6 and $column > 1 and $column < 5))
echo "*";
else
echo " ";
}
echo "\n";
}
?>
Sample Output:
* * * * * * * * * * * * ***
Flowchart :
PHP Code Editor:
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Previous: Write a PHP program to print alphabet pattern 'T'.
Next: Write a PHP program to print alphabet pattern 'V'.
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PHP: Tips of the Day
How to Sort Multi-dimensional Array by Value?
Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:
Example:
function sortByOrder($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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