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    Collator::compare

    collator_compare

    (PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)

    Collator::compare -- collator_compare — Compare two Unicode strings

    설명

    객체 기반 형식

    public int Collator::compare ( string $str1 , string $str2 )

    절차식 형식

    int collator_compare ( Collator $coll , string $str1 , string $str2 )

    Compare two Unicode strings according to collation rules.

    인수

    coll

    Collator object.

    str1

    The first string to compare.

    str2

    The second string to compare.

    반환값

    Return comparison result:

    • 1 if str1 is greater than str2 ;

    • 0 if str1 is equal to str2;

    • -1 if str1 is less than str2 .

    On error boolean FALSE is returned.

    Warning

    이 함수는 논리 FALSE를 반환하지만, 논리 FALSE로 취급할 수 있는 다른 값을 반환할 수 있습니다. 자세한 정보는 논리형 섹션을 참고하십시오. 이 함수의 반환값을 확인하려면 === 연산자를 이용하십시오.

    예제

    Example #1 collator_compare()example

    <?php
    $s1     = 'Hello';
    $s2 = 'hello';

    $coll = collator_create( 'en_US' );
    $res  = collator_compare( $coll, $s1, $s2 );

    if (    $res === false) {
        echo     collator_get_error_message( $coll );
    } else if(     $res > 0 ) {
        echo     "s1 is greater than s2\n";
    } else if(     $res < 0 ) {
        echo     "s1 is less than s2\n";
    } else {
        echo     "s1 is equal to s2\n";
    }
    ?>

    위 예제의 출력:


    s1 is greater than s2

    참고

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    User Contributed Notes 1 note

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    1
    erik at eldata dot se
    3 years ago
    The Collator class with method compare does what the non existing mb_strcmp, mb_strcasecmp, mb_strnatcmp and mb_strnatcasecmp would do for multibyte strings (UTF8) - but better! :-)

    For "case": the Collator is case insensitive due to Collator::CASE_FIRST defaults to Collator::OFF, but can be changed with method setAttribute.

    For "nat" (natural sort order for numbers): use method setAttribute with Collator::NUMERIC_COLLATION and Collator:ON to enable.
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