PHP排序-获取10、11、12。。。1,20,2而不是1,10,11,12。。。2, 20

我有这样的参数需要排序（注意：我在将key=>value组合转换为字符串后进行排序）：

我总共有大约30个参数。为了调用端点，我需要按字母顺序生成参数的签名

使用PHP的

sort（）

只需不到10分钟就可以了，但当我尝试使用20分钟时，它会给我如下输出：

SellerSKUList.SellerSKU.10=4574&
SellerSKUList.SellerSKU.11=4575&
...
SellerSKUList.SellerSKU.18=4582&
SellerSKUList.SellerSKU.19=4583&
SellerSKUList.SellerSKU.1=4565&
SellerSKUList.SellerSKU.20=4584&
SellerSKUList.SellerSKU.2=4566

SellerSKUList.SellerSKU.1=4565&
SellerSKUList.SellerSKU.10=4574&
SellerSKUList.SellerSKU.11=4575&
...
SellerSKUList.SellerSKU.18=4582&
SellerSKUList.SellerSKU.19=4583&
SellerSKUList.SellerSKU.2=4566&
SellerSKUList.SellerSKU.20=4584

$url = array();
foreach ($param as $key => $val) {

    $key = str_replace("%7E", "~", rawurlencode($key));
    $val = str_replace("%7E", "~", rawurlencode($val));
    $url[] = "{$key}={$val}";
}

sort($url);

我需要它是这样的：

SellerSKUList.SellerSKU.10=4574&
SellerSKUList.SellerSKU.11=4575&
...
SellerSKUList.SellerSKU.18=4582&
SellerSKUList.SellerSKU.19=4583&
SellerSKUList.SellerSKU.1=4565&
SellerSKUList.SellerSKU.20=4584&
SellerSKUList.SellerSKU.2=4566

SellerSKUList.SellerSKU.1=4565&
SellerSKUList.SellerSKU.10=4574&
SellerSKUList.SellerSKU.11=4575&
...
SellerSKUList.SellerSKU.18=4582&
SellerSKUList.SellerSKU.19=4583&
SellerSKUList.SellerSKU.2=4566&
SellerSKUList.SellerSKU.20=4584

$url = array();
foreach ($param as $key => $val) {

    $key = str_replace("%7E", "~", rawurlencode($key));
    $val = str_replace("%7E", "~", rawurlencode($val));
    $url[] = "{$key}={$val}";
}

sort($url);

排序函数如下所示：

SellerSKUList.SellerSKU.10=4574&
SellerSKUList.SellerSKU.11=4575&
...
SellerSKUList.SellerSKU.18=4582&
SellerSKUList.SellerSKU.19=4583&
SellerSKUList.SellerSKU.1=4565&
SellerSKUList.SellerSKU.20=4584&
SellerSKUList.SellerSKU.2=4566

SellerSKUList.SellerSKU.1=4565&
SellerSKUList.SellerSKU.10=4574&
SellerSKUList.SellerSKU.11=4575&
...
SellerSKUList.SellerSKU.18=4582&
SellerSKUList.SellerSKU.19=4583&
SellerSKUList.SellerSKU.2=4566&
SellerSKUList.SellerSKU.20=4584

$url = array();
foreach ($param as $key => $val) {

    $key = str_replace("%7E", "~", rawurlencode($key));
    $val = str_replace("%7E", "~", rawurlencode($val));
    $url[] = "{$key}={$val}";
}

sort($url);

在我看来，sort（）函数应该提供所需的输出，但我的经验表明不同。是否有其他函数或其他方法对字符串中的1进行排序

我试过：

usort($url,strcmp)  => 10,11,12...1,20,2
uksort($url,strcmp) => 10,11,12...20,2,1
natsort($url)       => 1,2,3,...10,11,12

Desired:            => 1,10,11...19,2,20

---

我找到了一个解决方案-如果在内爆键=>值对之前我

uksort（$params，strcmp）

，那么排序顺序是正确的

uksort($param, 'strcmp');

$url = array();
foreach ($param as $key => $val) {

    $key = str_replace("%7E", "~", rawurlencode($key));
    $val = str_replace("%7E", "~", rawurlencode($val));
    $url[] = "{$key}={$val}";
}

感谢@Thomas Smart在此处的评论：

我仍然想知道是否有一种方法可以像这样对字符串排序：

SellerSKUList.SellerSKU.10=4574&
SellerSKUList.SellerSKU.11=4575&
SellerSKUList.SellerSKU.18=4582&
SellerSKUList.SellerSKU.19=4583&
SellerSKUList.SellerSKU.1=4565&
SellerSKUList.SellerSKU.20=4584&
SellerSKUList.SellerSKU.2=4566

---

类似于usort（$sku，function（$a，$b）{返回strcmp（substr（$a，0，strpos（$a，“=”）），substr（$b，0，strpos（$b，“=”））；}）应该适合您。