查找并编辑字符串中的电子邮件地址
如何通过用一些单词替换电子邮件地址来防止人们在描述字段中显示他们的电子邮件地址？例如，如果用户输入以下文本：
Please contact me via [email protected].
我希望输出为：
Please contact me via <email address is blocked>.
我知道基本的 str_replace() 函数，但输出只是：
//output is Please contact me via joe.joey <email address is blocked> email.com
$string = 'Please contact me via [email protected].';
$lookfor = '@';
$replacewith = '<email address is blocked>';
$newstring = str_replace($lookfor, $replacewith, $string);
How do I prevent people from presenting their email address in the description field by replacing their email with some words? For example, if a user entered the following text:
Please contact me via [email protected].
I want the output to be:
Please contact me via <email address is blocked>.
I know of a basic str_replace() function, but the output would simply be:
//output is Please contact me via joe.joey <email address is blocked> email.com
$string = 'Please contact me via [email protected].';
$lookfor = '@';
$replacewith = '<email address is blocked>';
$newstring = str_replace($lookfor, $replacewith, $string);
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这是使用 preg_replace 的最佳时机。我在这里稍微简化了有效电子邮件的要求（电子邮件可能非常复杂），但类似于：
$newstring = preg_replace("/[\w-]+@([\w-]+\. )+[\w-]+/", $replacewith, $string);
This is a perfect time to use preg_replace. I've slightly simplified the requirements for a valid email here (emails can be horridly complex), but something like:
$newstring = preg_replace("/[\w-]+@([\w-]+\.)+[\w-]+/", $replacewith, $string);