max

    (PHP 4, PHP 5, PHP 7, PHP 8)

    max — Find highest value

    Açıklama

    max(mixed$value, mixed...$values): mixed

    Alternative signature (not supported with named arguments):

    max(array$value_array): mixed

    If the first and only parameter is an array, max() returns the highest value in that array. If at least two parameters are provided, max() returns the biggest of these values.

    Bilginize:

    Values of different types will be compared using the standard comparison rules. For instance, a non-numeric string will be compared to an int as though it were 0, but multiple non-numeric string values will be compared alphanumerically. The actual value returned will be of the original type with no conversion applied.

    Dikkat

    Be careful when passing arguments of different types because max() can produce unpredictable results.

    Bağımsız Değişkenler

    value

    Any comparable value.

    values

    Any comparable values.

    value_array

    An array containing the values.

    Dönen Değerler

    max() returns the parameter value considered "highest" according to standard comparisons. If multiple values of different types evaluate as equal (e.g. 0 and 'abc') the first provided to the function will be returned.

    Hatalar/İstisnalar

    If an empty array is passed, max() throws a ValueError.

    Sürüm Bilgisi

    Sürüm: Açıklama
    8.0.0max() throws a ValueError on failure now; previously, false was returned and an E_WARNING error was emitted.
    8.0.0 As string to number comparisons were changed, max() no longer returns a different value based on the argument order in those cases.

    Örnekler

    Örnek 1 Example uses of max()

    <?php
    echo max(2, 3, 1, 6, 7); // 7
    echo max(array(2, 4, 5)); // 5

    // Here we are comparing -1 < 0, so 'hello' is the highest value
    echo max('hello', -1); // hello

    // With multiple arrays of different lengths, max returns the longest
    $val = max(array(2, 2, 2), array(1, 1, 1, 1)); // array(1, 1, 1, 1)

    // Multiple arrays of the same length are compared from left to right
    // so in our example: 2 == 2, but 5 > 4
    $val = max(array(2, 4, 8), array(2, 5, 1)); // array(2, 5, 1)

    // If both an array and non-array are given, the array will be returned
    // as comparisons treat arrays as greater than any other value
    $val = max('string', array(2, 5, 7), 42); // array(2, 5, 7)

    // If one argument is NULL or a boolean, it will be compared against
    // other values using the rule FALSE < TRUE regardless of the other types involved
    // In the below example, -10 is treated as TRUE in the comparison
    $val = max(-10, FALSE); // -10

    // 0, on the other hand, is treated as FALSE, so is "lower than" TRUE
    $val = max(0, TRUE); // TRUE
    ?>

    Ayrıca Bakınız

    • min() - Find lowest value
    • count() - Bir dizideki veya bir Countable nesnesindeki eleman sayısını döndürür
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