Question

我想更改我网址的第一部分。

我有这个网址

www.website.com/download/long-file-name-123

我想更改＆＃34;下载＆＃34;部分到＆＃34;下载＆＃34;像这样。

www.website.com/downloads/long-file-name-123

问题是网址也可能如下所示：

www.website.com/download/files/file/long-file-name-123

所以我需要一些方法来始终只更改网址的第一部分，

Answer 1

php > $url = 'www.website.com/download/long-file-name-123';
php > $newUrl = str_replace('www.website.com/download', 'www.website.com/downloads', $url);
php > var_dump($newUrl);
string(44) "www.website.com/downloads/long-file-name-123"

Answer 2

for (let i = 0; i < 2; i++) {
    // i is visible
}

// i is no longer visible as it's scope is only inside `for`

首次出现下载

<?php
echo str_replace("download","downloads","www.website.com/download/long-file-name-123");
?>

输出：

<?php
$urls = array("www.website.com/download/long-file-name-123","www.website.com/download/files/file/long-file-name-123");
$arrlength = count($urls);
for($x = 0; $x < $arrlength; $x++)
{
    $pos = strpos($urls[$x], "download");
    if ($pos !== false) {
        $newstring = substr_replace($urls[$x], "downloads", $pos, strlen("download"));
        echo ($newstring);
        echo ("\n");
    }
}
?>

现场演示：

http://tpcg.io/7tv7nF

PHP：替换网址的第一部分

2 个答案: