是否可以在 php 中使用正则表达式替换短语前的单词？

Question

输入文字：Engineering School, Medical school

需要输出：Educational school, Educational school

规则：短语 school 之前的所有单词（不区分大小写）需要替换为 Educational

$inputext = "Engineering School, Medical school"; 
$rule ="//s/";
$replacetext = "Educational";
$outputext = preg_replace($rule, $replacetext, $inputext);
echo($outputext);

感谢您的任何建议。

Answer 1

在正则表达式中使用 /\w+(?= school)/i 模式 select school 之前的任何单词。

$inputext = "Engineering school, Medical school"; 
$rule ="/\w+(?= school)/i";
$replacetext = "Educational";
$outputext = preg_replace($rule, $replacetext, $inputext);

检查结果 demo

您还可以使用 /\w+(?= school(,|$))/i 来防止匹配不想要的词，例如 @WiktorStribiżew 所说的 schoolboy。

是否可以在 php 中使用正则表达式替换短语前的单词？

Is it possible to replace a word before a phrase using regular expression in php?

php

regex

string

preg-replace