Question

我经常在命令行上执行以下操作：

<?php

    echo 'Short description:' . "\t\t\t\t\t\t" . '123' . "\n";
    echo 'A slightly longer description:' . "\t\t\t\t\t\t" . '321' . "\n";

?>

这些将不再“匹配”； “ 123”和“ 321”将不在同一“列”上：

This is what I want

This is what I don't want

是否有任何明智的方法来解决此问题？我一直以为“制表人”的全部目的就是要达到这种效果，但是显然不是吗？还是我以某种方式误解了？

Answer 1

这是一种方法。
也许不像您期望的那么简单，但是可以。
我使用完整的字符串并找到最长的描述，并将其用作基础。

$str = "Short description: \t 123
A slightly longer description: \t 321";

$arr = explode ("\n", $str);
foreach($arr as $line){
    // Create new array with str_len as one item
    $parts = explode("\t", $line);
    $new[] = ['desc' => $parts[0], 'num' => $parts[1], 'len' => strlen($parts[0])];
}
// Find max length in array
$pad = max(array_column($new, 'len'))+1;

// Output it
foreach($new as $sub){
    echo str_pad($sub['desc'], $pad, " ") . "\t" . $sub['num'] . "\n";
}

输出：

Short description:                   123
A slightly longer description:       321

https://3v4l.org/s1DAD

如何使事物在命令行中与选项卡对齐？

1 个答案: