|
Последние активные темы форума |
|
readline_callback_handler_install
(no version information, might be only in CVS) readline_callback_handler_install -- Initializes the readline callback interface and terminal, prints the prompt and returns immediately
Описаниеbool readline_callback_handler_install ( string prompt, callback callback ) Sets up a readline callback interface then prints
prompt and immediately returns. The
callback function takes one parameter; the user
input returned. Calling this function twice without removing the previous
callback interface will automatically and conveniently overwrite the old
interface.
The callback feature is useful when combined with
stream_select() as it allows interleaving of IO and
user input, unlike readline().
Возвращаемые значенияВозвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
Примеры
Пример 1. Readline Callback Interface Example
<?php
function
rl_callback
(
$ret
)
{
global
$c
,
$prompting
;
echo
"You entered: $ret
\n
"
;
$c
++;
if (
$c
>
10
) {
$prompting
=
false
;
readline_callback_handler_remove
();
} else {
readline_callback_handler_install
(
"
[
$c
]
Enter something: "
,
'rl_callback'
);
}
}
$c
=
1
;
$prompting
=
true
;
readline_callback_handler_install
(
"
[
$c
]
Enter something: "
,
'rl_callback'
);
while (
$prompting
) {
$n
=
stream_select
(
$r
= array(
STDIN
),
$w
=
null
,
$e
=
null
,
null
);
if (
$n
&&
in_array
(
STDIN
,
$r
)) {
// read a character, will call the callback when a newline is entered
readline_callback_read_char
();
}
}
echo
"Prompting disabled. All done.\n"
;
?>
|
|
|