php 用 URL 中的破折号替换空格
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Replace spaces with a dash in a URL
提问by Robdogga55
I managed to replace special characters such as : ; / etc in my URL but now it has the spaces again. Here is my code:
我设法替换了特殊字符，例如 : ; / etc 在我的 URL 中，但现在它又有空格了。这是我的代码：
<h3><a href="<?php echo (isset($row_getDisplay['post_id']) ? $row_getDisplay['post_id'] : ''); ?>_<?php echo str_replace(array(':', '\', '/', '*'), ' ', urldecode($row_getDisplay['title'])); ?>.html" ><?php echo (isset($row_getDisplay['title']) ? $row_getDisplay['title'] : ''); ?></a></h3>
I want it to like it is remove special characters as well as replace spaces with dashes.
我希望它喜欢它删除特殊字符以及用破折号替换空格。
回答by ka_lin
Try str_replace(' ', '-', $string);
尝试 str_replace(' ', '-', $string);
回答by Christopher Brunsdon
You can use preg_replace:
您可以使用 preg_replace：
preg_replace('/[[:space:]]+/', '-', $subject);
This will replace all instances of space with a single '-' dash. So if you have a double, triple, etc space, then it will still give you one dash.
这将用单个“-”破折号替换所有空格实例。所以如果你有一个双倍、三倍等空间，那么它仍然会给你一个破折号。
EDIT: this is a generec function I've used for the last year to make my URLs tidy
编辑：这是我去年用来使我的 URL 整洁的generec 函数
function formatUrl($str, $sep='-')
{
$res = strtolower($str);
$res = preg_replace('/[^[:alnum:]]/', ' ', $res);
$res = preg_replace('/[[:space:]]+/', $sep, $res);
return trim($res, $sep);
}
It will convert all non-alphanumeric characters to space, then convert all space to dash, then trim any dashes on the end / beginning of the string. This will work better than having to list special characters in your str_replace
它将所有非字母数字字符转换为空格，然后将所有空格转换为破折号，然后修剪字符串末尾/开头的任何破折号。这比必须在 str_replace 中列出特殊字符更有效
