带有单词边界的PHP正则表达式

SynackSA 发表于 Dev

SynackSA

因此，我正在尝试编写一个函数，该函数将从街道名称中提取出方向（如果该名称中存在该方向）。

例如，街上Burnhamthorpe Rd West会拉出这个词West

我已经使用以下正则表达式完成了此操作：

(?:\b(W)\b)|(?:\b(West)\b)

问题是当我点击以下地址Brown's Line并使用正则表达式测试南向时，它拉出了's

(?:\b(S)\b)|(?:\b(South)\b)

我的PHP如下

private function breakUpStreetNameParts($address)
{
    $directions = ["N" => "North", "S" => "South", "E" => "East", "W" => "West"];

    $direction = "";
    foreach ($directions as $short_dir => $long_dir) {
        if (preg_match_all("/(?:\b({$short_dir})\b)|(?:\b($long_dir)\b)/i", $address, $parts)) {
            $direction = $parts[0][0];
            $patterns = [
                "/{$parts[0][0]}/",
                "/\s\s/"
            ];
            $replacements = [
                "",
                " "
            ];
            $address = trim(preg_replace($patterns, $replacements, $address));
        }
    }

    return [
        "st_name"       => $address, 
        "st_direction"  => $direction
    ];
}

我该如何做正则表达式，以便它可以正常工作并忽略撇号作为单词边界？

编辑

在下面添加了我的修复程序：)

SynackSA

我对其进行了整理，即使对于以一个方向开头的街道名称，以下内容也可以完美地工作：

private function breakUpStreetNameParts($address)
{
    $directions = ["N" => "North", "S" => "South", "E" => "East", "W" => "West"];

    $direction = "";
    foreach ($directions as $short_dir => $long_dir) {
        if (preg_match_all("/(?:(?:\s)({$short_dir})(?:\s|$))|(?:(?:\s)({$long_dir})(?:\s|$))/i", $address, $parts)) {
            $direction = $parts[0][0];
            $patterns = [
                "/{$parts[0][0]}/",
                "/\s\s/"
            ];
            $replacements = [
                "",
                " "
            ];
            $address = trim(preg_replace($patterns, $replacements, $address));
        }
    }

    return [
        "st_name"       => $address, 
        "st_direction"  => $direction
    ];
}


Street name: Brown's Line
Array
(
    [st_name] => Brown's Line
    [st_direction] =>
)

Before breakup: Burnhamthorpe Road West
Array
(
    [st_name] => Burnhamthorpe Road
    [st_direction] =>  West
)

Before breakup: West Ave
Array
(
    [st_name] => West Ave
    [st_direction] =>
)