php 一次性替换多个关键词

php替换多个字符串str_replace函数

echo str_replace(array("m","i"),array("n","z"),"my name is jim!")

输出：ny nane zs jzn!

echo str_replace(array('m','i'),'n',"my name is jim!");

<?php 
$vowels = array("a", "e", "i", "o", "u", "A", "E", "I", "O", "U");
$onlyconsonants = str_replace($vowels, "","Hello World of PHP");
echo $onlyconsonants;
?>

str_replace(find,replace,string,count)

<?php
//把字符串 "Hello world!" 中的字符 "world" 替换为 "Shanghai"：
 
echo str_replace("world","Shanghai","Hello world!");
?>