更新时间:2022-06-23 05:31:50
由于 PHP 在 Python 中没有真正的 str.format
替代品,我决定实现我自己的非常简单的作为 Python 的大多数基本功能.
As PHP doesn't really have a proper alternative to str.format
in Python, I decided to implement my very simple own which as most of the basic functionnalitites of the Python's one.
function format($msg, $vars)
{
$vars = (array)$vars;
$msg = preg_replace_callback('#\{\}#', function($r){
static $i = 0;
return '{'.($i++).'}';
}, $msg);
return str_replace(
array_map(function($k) {
return '{'.$k.'}';
}, array_keys($vars)),
array_values($vars),
$msg
);
}
# Samples:
# Hello foo and bar
echo format('Hello {} and {}.', array('foo', 'bar'));
# Hello Mom
echo format('Hello {}', 'Mom');
# Hello foo, bar and foo
echo format('Hello {}, {1} and {0}', array('foo', 'bar'));
# I'm not a fool nor a bar
echo format('I\'m not a {foo} nor a {}', array('foo' => 'fool', 'bar'));
{}
将转换为 {0}
等),立>