AI Answer:
To achieve this transformation using regular expressions in PHP, you can use the following approach:
Match a number starting with '04', followed by any combination of digits and optional spaces.
Replace the matched number by removing all spaces and adding the country code '+61' at the beginning, while ensuring that numbers already containing the country code are left untouched.
Here's a PHP code snippet that you can use:
<?php
function normalizeAustralianPhoneNumber($number) {
// Check if the number already contains the country code +61 and return it unmodified if it does
if (preg_match('/^\+61\d+$/', $number)) {
return $number;
}
// Regex to match an Australian number starting with '04' followed by any digits and optional spaces
$pattern = '/^04\s*(\d\s*){8}$/';
// Replacement pattern to format the number with country code +61 and without spaces
$replacement = '+614$1$2$3$4$5$6$7$8$9';
// Perform the regex replacement
$normalizedNumber = preg_replace_callback($pattern, function($matches) {
// Remove all spaces from the matched number
$digitsOnly = preg_replace('/\s+/', '', $matches[0]);
// Add the country code +61 to the number
return '+61' . substr($digitsOnly, 1);
}, $number);
return $normalizedNumber;
}
// Examples
echo normalizeAustralianPhoneNumber('0402 930 888') . "\n"; // Outputs: +61402930888
echo normalizeAustralianPhoneNumber('+61415933933') . "\n"; // Outputs: +61415933933
echo normalizeAustralianPhoneNumber('04 01 933 833') . "\n"; // Outputs: +61401933833
?>
This function first checks if the provided number already contains the country code '+61'. If it does, the number is returned as is. Otherwise, it applies a regular expression to find numbers that match the Australian mobile format starting with '04', followed by any digits interspersed with optional spaces. It then formats these numbers correctly, without spaces, adding '+61' at the beginning.
Please ensure that you test this code with various input scenarios to confirm that it handles all cases you expect in your application.
