php 한글 메뉴얼 도움말 검색 사이트 Waits until the output from a process matches one [function.expect-expectl]

설명

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).

인수

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:

**Expect Case Array**
Index Key	Value Type	Description	Is Mandatory	Default Value
0	string	pattern, that will be matched against the output from the stream	yes
1	mixed	value, that will be returned by this function, if the pattern matches	yes
2	integer	pattern type, one of: `EXP_GLOB`, `EXP_EXACT` or `EXP_REGEXP`	no	`EXP_GLOB`

반환값

Returns value associated with the pattern that was matched.

On failure this function returns: EXP_EOF, EXP_TIMEOUT or EXP_FULLBUFFER

변경점

버전	설명
0.2.1	Prior to version 0.2.1, in `match` parameter a match string was returned, not an array of match substrings.

예제

Example #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);
?>

참고

expect_popen() - Execute command via Bourne shell, and open the PTY stream to the process