expect_expectl

Waits until the output from a process matches one of the patterns, a specified time period has passed, or an EOF is seen

说明

int expect_expectl ( resource $expect , array $cases [, array &$match ] )

Waits until the output from a process matches one of the patterns, a specified time period has passed, or an EOF is seen.

If match is provided, then it is filled with the result of search. The matched string can be found in match[0]. The match substrings (according to the parentheses) in the original pattern can be found in match[1], match[2], and so on, up to match[9] (the limitation of libexpect).

参数

expect
An Expect stream, previously opened with expect_popen.

cases
An array of expect cases. Each expect case is an indexed array, as described in the following table:

Index KeyValue TypeDescriptionIs MandatoryDefault Value
0stringpattern, that will be matched against the output from the streamyes 
1mixedvalue, that will be returned by this function, if the pattern matchesyes 
2integerpattern type, one of: EXP_GLOB, EXP_EXACT or EXP_REGEXPnoEXP_GLOB

返回值

Returns value associated with the pattern that was matched.

On failure this function returns: EXP_EOF, EXP_TIMEOUT or EXP_FULLBUFFER

更新日志

版本说明
0.2.1Prior to version 0.2.1, in match parameter a match string was returned, not an array of match substrings.

范例

示例 #1 expect_expectl example

<?php
// Copies file from remote host:
ini_set("expect.timeout", 30);

$stream = fopen("expect://scp user@remotehost:/var/log/messages /home/user/messages.txt", "r");

$cases = array(
    // array(pattern, value to return if pattern matched)
    array("password:", "asked for password"),
    array("yes/no)?",  "asked for yes/no")
);

while (true) {
    switch (expect_expectl($stream, $cases)) {
        case "asked for password":
            fwrite($stream, "my password\n");
            break;
        case "asked for yes/no":
            fwrite($stream, "yes\n");
            break;
        case EXP_TIMEOUT:
        case EXP_EOF:
            break 2; // break both the switch statement and the while loop
        default:
            die "Error has occurred!";
    }
}

fclose($stream);
?>

参见

  • expect_popen

expect_popen

Execute command via Bourne shell, and open the PTY stream to the process

说明

resource expect_popen ( string $command )

Execute command via Bourne shell, and open the PTY stream to the process.

参数

command
Command to execute.

返回值

Returns an open PTY stream to the processes stdio, stdout, and stderr.

On failure this function returns FALSE.

范例

示例 #1 expect_popen example

<?php
// Login to the PHP.net CVS repository:
$stream = expect_popen ("cvs -d :pserver:anonymous@cvs.php.net:/repository login");
sleep (3);
fwrite ($stream, "phpfi\n");
fclose ($stream);
?>

参见

  • popen

目录

  • expect_expectl — Waits until the output from a process matches one of the patterns, a specified time period has passed, or an EOF is seen
  • expect_popen — Execute command via Bourne shell, and open the PTY stream to the process