(PHP 5 >= 5.1.0, PHP 7)
readline_callback_handler_install — 锟斤拷始锟斤拷一锟斤拷 readline 锟截碉拷锟接口ｏ拷然锟斤拷锟秸讹拷锟斤拷锟斤拷锟绞撅拷锟较拷锟斤拷锟斤拷锟斤拷锟斤拷锟�
锟斤拷锟斤拷一锟斤拷 readline 锟截碉拷锟接匡拷然锟斤拷锟斤拷锟� prompt 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷.
锟节讹拷锟轿碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭拷瞥锟斤拷锟揭伙拷锟斤拷氐锟斤拷涌冢锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆讹拷锟斤拷锟角旧的接匡拷.
锟斤拷锟斤拷锟� stream_select() 时锟截碉拷锟斤拷锟斤拷锟皆非筹拷锟斤拷锟矫ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷 IO 锟斤拷锟矫伙拷锟斤拷锟斤拷 锟戒交锟斤拷锟斤拷校锟斤拷锟斤拷锟�readline().
prompt锟斤拷示锟斤拷息.
callback
callback 锟斤拷锟斤拷锟斤拷要一锟斤拷锟斤拷锟斤拷; 锟矫伙拷锟斤拷锟诫将锟斤拷锟斤拷锟斤拷.
锟缴癸拷时锟斤拷锟斤拷 TRUE锟斤拷 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE锟斤拷
Example #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) {
$w = NULL;
$e = NULL;
$n = stream_select($r = array(STDIN), $w, $e, null);
if ($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";
?>