Online PHP editor | output for t4h9t

@ 2016-11-21T10:59:28Z

<?php

    // \u{...} syntax is only allowed in PHP 7+
    version_compare(PHP_VERSION, "7.0", ">=") || die;

	$RegularExpression = "/^[a-z\u{0430}-\u{044F}]+$/iu";

	$TestStrArray = array('ABC', 'abc', "\u{0410}\u{0411}\u{0412}", "\u{0430}\u{0431}\u{0432}");

	foreach ($TestStrArray as $TestStr)
	{
		$Result = preg_match($RegularExpression, $TestStr);

		echo $TestStr;

		if ($Result === false)
		{
			echo ' - Error'."\r\n";
		}
		else
		{
			echo ' - '.($Result === 0 ? 'not found' : 'found')."\r\n";
		}
	} // foreach
?>

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: ABC - found abc - found АБВ - found абв - found
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 ABC - found abc - found АБВ - found абв - found
Output for 5.6.0 - 5.6.28

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