Online PHP editor | output for m3jUC

@ 2020-01-25T00:55:30Z

<?php
function fNumString(string $numberString, string $decimalPoint = '.', string $thousandsSeparator = ','): string
{
  [$integerPart, $decimalPart] = array_pad(explode('.', $numberString, 2), 2, null);
  $integerPart = strrev(preg_replace('/\d{3}(?=\d)/', '\0' . $thousandsSeparator, strrev($integerPart)));
  
  return $integerPart . ($decimalPart ? $decimalPoint . $decimalPart : '');
}
echo fNumString('1000.382'), PHP_EOL;
echo fNumString('99.01'), PHP_EOL;
echo fNumString('1900000'), PHP_EOL;
echo fNumString('19000000000000000000123.12399999999198');

Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: 1,000.382 99.01 1,900,000 19,000,000,000,000,000,000,123.12399999999198
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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