php foreach 循环没有给出所有结果？

Question

我正在尝试从字符串中提取指定的单词。

我不知道我是否忘记了什么但它只打印前两个值？有人可以帮我吗？

感谢您的帮助！

$orgData["connector"] = 'some stringy thing SMA-female N-female FME-female';

if (preg_match_all('/(N-female|SMA-female|FME-female)/',$orgData["connector"], $matches)) {
    foreach ($matches as $i => $match) {
        if ($match[$i] == "N-female") {
            $con1 = "|Connector: N-female";
        }
        if ($match[$i] == "SMA-female") {
            $con2 = "|Connector: SMA-female";
        }
        if ($match[$i] == "FME-female") {
            $con3 = "|Connector: FME-female";
        }
        print_r($con1 . $con2 . $con3);
    }
}

Answer 1

您可以使用单个变量并在找到匹配项后追加：

$orgData = 'some stringy thing SMA-female N-female FME-female';
$con = "";
if (preg_match_all('/(?:N|SMA|FME)-female/', $orgData, $matches)) {
            foreach ($matches[0] as $match) {

                if ($match == "N-female") {
                    $con .= "|Connector: N-female";
                }
                if ($match == "SMA-female") {
                    $con .= "|Connector: SMA-female";
                }
                if ($match == "FME-female") {
                    $con .= "|Connector: FME-female";
                }
            }
        }
echo $con; // => |Connector: SMA-female|Connector: N-female|Connector: FME-female

参见PHP demo。

请注意，我稍微缩小了模式：(?:N|SMA|FME)-female 匹配 N、SMA 或 FME，然后是 -female。

php foreach 循环没有给出所有结果？

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