Question

任何可以提供建议的人，我正在寻找一个PHP函数或方法来匹配文件上的3个连续行，例如

php is fun,
linux is interesting,
Windows is fun,
Ubuntu is ubuntu,
Perl is fun,

我如何匹配以上文字中的以下内容？

linux is interesting,
Windows is fun,
Ubuntu is ubuntu,

目前我可以匹配一条线。

Answer 1

可以通过三种方式实现。

首先使用regex与preg_match_all()

$str = "php is fun, linux is interesting, Windows is fun, Ubuntu is ubuntu, Perl is fun,";
$res = preg_match_all("/(linux is interesting|Windows is fun|Ubuntu is ubuntu)/", $str);
if ($res)
    echo "Text is founded in string";

如果您只是需要知道是否存在任何单词，请使用上述preg_match。如果您需要匹配任何字词的所有出现，请使用preg_match_all和|管道符号表示or

其次使用stripos()表示字符串是否包含特定单词，如果包含，则返回单词的起始位置。

print_r(stripos($str, "Windows is fun"))

Thridly 如果您使用,分隔符分隔字符串句子，则可以使用explode()将字符串转换为数组然后与另一个数组逐个匹配。

$str = "php is fun, linux is interesting, Windows is fun, Ubuntu is ubuntu, Perl is fun,";
$exp = explode(",", $str);

$match = array("linux is interesting", "Windows is fun", "Ubuntu is ubuntu");

foreach ($exp as $key => $value) {
    foreach ($match as $key_match => $value_match) {
        if ($value === $value_match) {
            echo "String match founded <br>";
        }
    }
}

是否有一个PHP函数来匹配文件上的3个连续行

1 个答案: