使用数组搜索并替换字符串中的单词

I want to scan a paragraph and replace needles in that with another word. for example

我想扫描一个段落并用另一个词替换那个针。例如

$needles = array('head', 'limbs', 'trunk');
$to_replace = "this";
$haystack = "Main parts of human body is head, Limbs and Trunk";

Final out put needed

最终输出需要

Main part of human body is this, this and this

How can I do it?

我该怎么做?

2 个解决方案

#1

With preg_replace :

使用preg_replace:

$needles = array('head', 'limbs', 'trunk');
$pattern = '/' . implode('|', $needles) . '/i';
$to_replace = "this";
$haystack = "Main parts of human body is head, Limbs and Trunk";

echo preg_replace($pattern, $to_replace, $haystack);

#2

Assuming you are using PHP, you can try str_ireplace.

假设您使用的是PHP,可以尝试使用str_ireplace。

$needles = array('head', 'limbs', 'trunk');
$to_replace = "this";
$haystack = "Main parts of human body is head, Limbs and Trunk";
echo str_ireplace($needles, $to_replace, $haystack); // prints "Main parts of human body is this, this and this"