是否有一个PHP函数来匹配文件

Question

任何人，谁可以给劝连续3行，我在找一个PHP函数或方法上的一个文件，例如匹配连续3线

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

哪有我从以上文字匹配下面？

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

目前我可以匹配，如果它的一条线。

Answer 1

它可能有三种方式。

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"; 

使用regex首先如果你只需要知道是否有任何的话存在，如上使用preg_match。如果您需要匹配任何的话所有的出现次数，使用preg_match_all和|管迹象表明or

其次通过利用指示stripos()如果一个字符串包含特定的词或不和，如果包含返回起点单词的位置。

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

Thridly如果你是用分离分隔,您的字符串的句子那么就可以通过使用explode()字符串转换成阵列可能再由一个与另一个阵列匹配一个。

$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>"; 
     } 
    } 
}