PHP的preg_match匹配的文本

Question

如何從

$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內容可以

$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 ..."; 

，所以我需要一個解決方案可適用於

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

Answer 1

是否這樣？ https://regex101.com/r/PDehGB/2

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

有了這種模式將採取任何新的線路護理，仍然保持在$線。

可以發生爆炸「的」 $線，並與implode(".*?", $arr)

Answer 2

建設模式您可以使用這個表達式（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函數刪除字符串的HTML標籤，然後從字符串中刪除換行符。

$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);