PHP Exercises: Convert word to digit
PHP: Exercise-33 with Solution
Write a PHP program to convert word to digit.
Input: zero;three;five;six;eight;one
Output: 035681
Sample Solution: -
PHP Code:
<?php
function word_digit($word) {
$warr = explode(';',$word);
$result = '';
foreach($warr as $value){
switch(trim($value)){
case 'zero':
$result .= '0';
break;
case 'one':
$result .= '1';
break;
case 'two':
$result .= '2';
break;
case 'three':
$result .= '3';
break;
case 'four':
$result .= '4';
break;
case 'five':
$result .= '5';
break;
case 'six':
$result .= '6';
break;
case 'seven':
$result .= '7';
break;
case 'eight':
$result .= '8';
break;
case 'nine':
$result .= '9';
break;
}
}
return $result;
}
echo word_digit("zero;three;five;six;eight;one")."\n";
echo word_digit("seven;zero;one")."\n";
?>
Sample Output:
035681 701
Flowchart:
PHP Code Editor:
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Previous: Write a PHP program to check if a number is an Armstrong number or not. Return true if the number is Armstrong otherwise return false.
Next: Write a PHP program to check if the bits of the two given positions of a number are same or not.
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PHP: Tips of the Day
How to Sort Multi-dimensional Array by Value?
Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:
Example:
function sortByOrder($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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