(PECL expect >= 0.1.0)
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
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).
expectAn Expect stream, previously opened with expect_popen().
casesAn array of expect cases. Each expect case is an indexed array, as described in the following table:
| 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 |
Returns value associated with the pattern that was matched.
On failure this function returns:
EXP_EOF,
EXP_TIMEOUT
or
EXP_FULLBUFFER
| 版本 | 说明 |
|---|---|
| PECL expect 0.2.1 |
Prior to version 0.2.1, in match parameter a match string was returned,
not an array of match substrings.
|
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);
?>