php - 替换字符串中的字符（连同存在于数组中的字符）

Question

我需要替换某些字符。

$to_replace = array( "{username}", "{email}" );
$replace_with = array( $username, $email );

另外，$key_value是一个数组，它给了我数组键和值，例如：

array(
  'site' => 'abc.com',
  'blog' => 'blog.com'
  'roll' => 42
);

使用

$message = 'This is a {username} speaking, my email is {email}, and my site is {site} with roll {roll}';

$message = str_replace( $to_replace, $replace_with, $message );

这样我可以替换用户名和电子邮件，我怎样才能使它成为站点、博客和滚动？

谢谢！

标签： phpstr-replace

Answer 1

您可以使用以下解决方案：

$email = '[e-mail]';
$username = 'johndoe';

$to_replace = array( "{username}", "{email}" );
$replace_with = array( $username, $email );

$key_value = array(
    'site' => 'abc.com',
    'blog' => 'blog.com',
    'roll' => 42
);

//add the keys and values from $key_value to the replacement arrays.
$to_replace = array_merge($to_replace, array_keys($key_value));
$replace_with = array_merge($replace_with, array_values($key_value));

//surround every key with { and }.
array_walk($to_replace, function(&$value, $key) { $value = '{'.trim($value, '{}').'}';});

$message = 'This is a {username} speaking, my email is {email}, and my site is {site} with roll {roll}';
$message = str_replace( $to_replace, $replace_with, $message );

var_dump($message); //This is a johndoe speaking, my email is [e-mail], and my site is abc.com with roll 42

演示： https ://ideone.com/isN90N