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@ 2015-09-22T14:43:30Z

<?php

$collator = new Collator('ru');

$str1 = intval(true).$collator->getSortKey('Abc');
$str2 = intval(true).$collator->getSortKey('Абв');

print_r(strcmp($str1, $str2));

Output
Performance
VLD
References
Branches

strcmp: documentation ( source)
print_r: documentation ( source)

preferences:dark modelive preview

32.59 ms | 402 KiB | 5 Q