PHPのお勉強！

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    定義済み定数

    DIRECTORY_SEPARATOR (string)
    PATH_SEPARATOR (string)
    Windows の場合はセミコロン、それ以外の場合はコロンとなります。
    SCANDIR_SORT_ASCENDING (int)
    SCANDIR_SORT_DESCENDING (int)
    SCANDIR_SORT_NONE (int)

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    User Contributed Notes 2 notes

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    38
    Anonymous
    10 years ago
    In PHP 5.6 you can make a variadic function.

    <?php
    /**
    * Builds a file path with the appropriate directory separator.
    * @param string $segments,... unlimited number of path segments
    * @return string Path
    */
    function file_build_path(...$segments) {
    return     join(DIRECTORY_SEPARATOR, $segments);
    }

    file_build_path("home", "alice", "Documents", "example.txt");
    ?>

    In earlier PHP versions you can use func_get_args.

    <?php
    function file_build_path() {
    return     join(DIRECTORY_SEPARATOR, func_get_args($segments));
    }

    file_build_path("home", "alice", "Documents", "example.txt");
    ?>
    up
    31
    Anonymous
    11 years ago
    For my part I'll continue to use this constant because it seems more future safe and flexible, even if Windows installations currently convert the paths magically. Not that syntax aesthetics matter but I think it can be made to look attractive:

    <?php
    $path     = join(DIRECTORY_SEPARATOR, array('root', 'lib', 'file.php');
    ?>
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