socket_set_block

    (PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

    socket_set_block — Sets blocking mode on a socket

    Опис

    socket_set_block(Socket $socket): bool

    The socket_set_block() function removes the O_NONBLOCK flag on the socket specified by the socket parameter.

    When an operation (e.g. receive, send, connect, accept, ...) is performed on a blocking socket, the script will pause its execution until it receives a signal or it can perform the operation.

    Параметри

    socket

    A Socket instance created with socket_create() or socket_accept().

    Значення, що повертаються

    Повертає true у разі успіху або false в разі помилки.

    Журнал змін

    Версія Опис
    8.0.0 Тепер socket є примірником Socket; раніше це був resource.

    Приклади

    Приклад #1 socket_set_block() example

    <?php
    $socket     = socket_create_listen(1223);
    socket_set_block($socket);

    socket_accept($socket);
    ?>

    This example creates a listening socket on all interfaces on port 1223 and sets the socket to O_BLOCK mode. socket_accept() will hang until there is a connection to accept.

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    User Contributed Notes 1 note

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    laacz at laacz dot lv
    9 years ago
    Besides true and false socket_set_block might return NULL if you're not too careful. That would happen when passing non socket resource as first parameter.

    E.g. socket_set_block(false)) would return NULL and emit warning that you're trying to do things with non-socket.
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