readline_list_history

(PHP 4, PHP 5, PHP 7, PHP 8)

readline_list_history — 获取历史

说明

readline_list_history(): array

获取完整命令行历史。

参数

此函数没有参数。

返回值

返回完整命令行历史的数组。元素的索引为整数，从零开始。

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用户贡献的备注 2 notes

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info () gaj ! design ¶

7 years ago

I just noticed that all readline functions are available with my php.exe (PHP 7, Cygwin) except for this one. It would be nice to have it so duplicate lines can be screened.

So to emulate it, I keep a working copy of the history in an array (yeah, extra code/data, but there are ways to keep the history from getting too large).

Loading is like:

<?php
    readline_read_history(HISTFILE);
    $hist = file(HISTFILE,FILE_IGNORE_NEW_LINES);
    array_shift($hist);
?>

Adding is like:

<?php
    if (!in_array($line,$hist)) {
        $hist[] = $line;
        readline_add_history($line);
    }
?>

(One may want to just check the last entry being the same.)

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Anonymous ¶

13 years ago

Note this function is only available when PHP is compiled with libreadline, not if it is compiled with libedit.

<?php
if (function_exists('readline_list_history')) {
  $history = readline_list_history();
  // ...
} else {
  echo 'Not supported by the compiled library.'.PHP_EOL;
}
?>