php - 搜索结果显示类似 google php

Question

我有一个段落，用户将在其中搜索，如果搜索词在里面有 3 个匹配项，但都在 3 个不同的地方

前

World War II, or the Second World War[1] (often abbreviated WWII or WW2), was a global military conflict lasting from 1939 to 1945 which involved most of the world's nations, including all of the great powers, organised into two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, with more than 100 million military personnel mobilised. In a state of "total war," the major participants placed their entire economic, industrial, and scientific capabilities at the service of the war effort, erasing the distinction between civilian and military resources. Marked by significant action against civilians, including the Holocaust and the only use of nuclear weapons in warfare, it was the deadliest conflict in human history,[2] with over seventy million casualties.

我必须搜索“war”以便它显示为

World War II, or the Second World War[1].....In a state of "totalwar,"....

Answer 1

$text = 'World War II, or the Second World W...';
$text = preg_replace('/war/ig', '<strong>$0</strong>', $text);

您可以阅读更多关于 preg_replace 的信息和 regular expressions在手册中。