PHP的preg_match匹配的文本

Question

如何从

$content = "The International Journal of Nursing published a 
<b>study of 557 adults suffering</b> 
<br> 
<b>from sleep</b> 
disorders. In this study, music was played when they ..."; 

匹配文本

$line = "study of 557 adults suffering from sleep"; 

和somtimes内容可以

$content = "The International Journal of Nursing published a 
<b>study of 557 adults suffering from sleep</b> 
disorders. In this study, music was played when they ..."; 

，所以我需要一个解决方案可适用于

preg_match("#<b>$line</b>#is",$content,$match); 

Answer 1

是否这样？ https://regex101.com/r/PDehGB/2

$pattern = '/<b>study.*?of.*?557.*?adults.*?suffering.*?from.*?sleep<\/b>/ms'; 

有了这种模式将采取任何新的线路护理，仍然保持在$线。

可以发生爆炸“的” $线，并与implode(".*?", $arr)

Answer 2

建设模式您可以使用这个表达式（https://regex101.com/r/elRsha/2）：

$line = "study of 557 adults suffering from sleep"; 

$content = "The International Journal of Nursing published a 
<b>study of 557 adults suffering</b> 
<br> 
<b>from sleep</b> 
disorders. In this study, music was played when they ..."; 

$line = implode('(?:[\n\s\t]*(?:<.+>)*[\n\s\t]*)*', explode(' ', $line)); 

preg_match("#($line)#is",$content,$match); 
print_r($match); 

Answer 3

首先使用strip_tags函数删除字符串的HTML标签，然后从字符串中删除换行符。

$line = "study of 557 adults suffering from sleep"; 

$content = "The International Journal of Nursing published a 
<b>study of 557 adults suffering</b> 
<br> 
<b>from sleep</b> 
disorders. In this study, music was played when they ..."; 

echo preg_match("#$line#is",trim(preg_replace('/\s+/', ' ', strip_tags($content))),$match);