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PHP 8 Programming Tips, Tricks, and Best Practices

Solution: Formatter and Hash Generation with Updated Functions

Explore practical solutions for handling PHP 8's updated NumberFormatter class to format currencies across various locales. Learn to build a versatile calculator function and implement a hash generator class for md5 and sha256. Understand how to adapt code for deprecated or removed functionalities to maintain performance and compatibility.

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Solution to Task 1

This challenge asked you to create a PHP script that demonstrates the use of the NumberFormatter class to format a monetary amount in different locales. You were provided with a code snippet that set the monetary locale to Japan, Germany, France, and the United Kingdom and formatted a given monetary amount accordingly.

PHP
<?php
$amt = 4395794.89;
// set monetary locale to Japan
$fmt = new NumberFormatter( 'ja_JP', NumberFormatter::CURRENCY );
echo "Natl: " . $fmt->formatCurrency($amt, 'JPY') . "\n";
$fmt->setSymbol(NumberFormatter::CURRENCY_SYMBOL, 'JPY');
echo "Intl: " . $fmt->format($amt) . "\n";
// set monetary locale to Germany
$fmt = new NumberFormatter( 'de_DE', NumberFormatter::CURRENCY );
echo "Natl: " . $fmt->formatCurrency($amt, 'EUR') . "\n";
$fmt->setSymbol(NumberFormatter::CURRENCY_SYMBOL, 'EUR');
echo "Intl: " . $fmt->format($amt) . "\n";
// set monetary locale to France
$fmt = new NumberFormatter( 'fr_FR', NumberFormatter::CURRENCY );
echo "Natl: " . $fmt->formatCurrency($amt, 'EUR') . "\n";
$fmt->setSymbol(NumberFormatter::CURRENCY_SYMBOL, 'EUR');
echo "Intl: " . $fmt->format($amt) . "\n";
// set monetary locale to United Kingdom
$fmt = new NumberFormatter( 'en_GB', NumberFormatter::CURRENCY );
echo "Natl: " . $fmt->formatCurrency($amt, 'GBP') . "\n";
$fmt->setSymbol(NumberFormatter::CURRENCY_SYMBOL, 'GBP');
echo "Intl: " . $fmt->format($amt) . "\n";
?>

Let’s get into the code.

  • Generating code for Japanese currency JPY:

    • Line 5: Create a variable $fmt and set the monetary locale to Japanese currency JPY.

    • Line 6: Display the currency in a national format using $fmt->formatCurrency() method.

    • Line 7: Generate a symbol for Japanese currency.

    • Line 8: Display the currency in an international format using the $fmt->format() method.

  • Generating code for German currency EUR:

    • Line 11: ...