• Installing/Configuring
  • Runtime Configuration

  • Runtime Configuration
  • Runtime Configuration

    Runtime Configuration

    The behaviour of these functions is affected by
    settings in php.ini.

    In order to configure expect extension, there are
    configuration options in the configuration file php.ini.

    Expect Configure Options
    Name Default Changeable Changelog
    expect.timeout “10” PHP_INI_ALL  
    expect.loguser “1” PHP_INI_ALL  
    expect.logfile “” PHP_INI_ALL  
    expect.match_max “” PHP_INI_ALL  

    For further details and definitions of the PHP_INI_* modes, see the
    Where a
    configuration setting may be set

    Here’s a short explanation of the configuration

    expect.timeout integer

    The timeout period for waiting for the data, when
    using the expect_expectl() function.

    A value of “-1” disables a timeout from


    A value of “0” causes the expect_expectl() function to return

    expect.loguser boolean

    Whether expect should send any output from the
    spawned process to stdout. Since interactive programs typically
    echo their input, this usually suffices to show both sides of the

    expect.logfile string

    Name of the file, where the output from the spawned
    process will be written. If this file doesn’t exist, it will be


    If this configuration is not empty, the output is
    written regardless of the value of expect.loguser.

    expect.match_max integer

    Changes default size (2000 bytes) of the buffer
    used to match asterisks in patterns.