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@ 2019-06-01T17:32:56Z

<?php

# some text
$buffer = <<<TEXT
it need to only select , when there is number around it. for example only 
when 123,456 i need to select and replace "," I'm converting English
numbers into Persian (e.g: "Hello 123" becomes "Hello ۱۲۳"). now I need to
replace the Decimal separator with Persian version too. but I don't know how
I can select it with regex. e.g: "Hello 121,534" most become 
"Hello ۱۲۱/۵۳۴" The character that needs to be replaced is , with /
TEXT;

# prepare formatters
$inFormat = new NumberFormatter('en_UK', NumberFormatter::DECIMAL);
$outFormat = new NumberFormatter('fa_IR', NumberFormatter::DECIMAL);

$bufferWithFarsiNumbers = preg_replace_callback(
    '(\b[1-9]\d{0,2}(?:[ ,.]\d{3})*\b)u',
    function (array $matches) use ($inFormat, $outFormat) {
        [$number] = $matches;

        $result = $inFormat->parse($number);
        if (false === $result) {
            return $number;
        }

        return sprintf("< %s (%.4f) = %s >", $number, $result, $outFormat->format($result));
    },
    $buffer
);

echo $bufferWithFarsiNumbers;

Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14: it need to only select , when there is number around it. for example only when < 123,456 (123456.0000) = ۱۲۳٬۴۵۶ > i need to select and replace "," I'm converting English numbers into Persian (e.g: "Hello < 123 (123.0000) = ۱۲۳ >" becomes "Hello ۱۲۳"). now I need to replace the Decimal separator with Persian version too. but I don't know how I can select it with regex. e.g: "Hello < 121,534 (121534.0000) = ۱۲۱٬۵۳۴ >" most become "Hello ۱۲۱/۵۳۴" The character that needs to be replaced is , with /
Output for 8.0.13: Fatal error: Uncaught Error: Class "NumberFormatter" not found in /in/Cr9T3:14 Stack trace: #0 {main} thrown in /in/Cr9T3 on line 14
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.33: Fatal error: Uncaught Error: Class 'NumberFormatter' not found in /in/Cr9T3:14 Stack trace: #0 {main} thrown in /in/Cr9T3 on line 14
Process exited with code 255.

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