How to use the replace function in PHP?

1 year ago
Olivia Parker
1 minute

In PHP, the replace function is used to search for a specified value in a string and replace it with a new value. Its usage is as follows:

string replace(mixed $search, mixed $replace, mixed $subject [, int &$count])

Description of parameters:

  1. $search: The string or array of strings to search for and replace.
  2. $replace: a string or an array of strings used for replacement.
  3. Subject: The string or array of strings to be replaced.
  4. $count (optional): the number of replacements will be stored in this parameter.

Return value:

  1. Return the replaced string or array of strings.

原文：我需要一段激励人心的演讲来激励我的团队。
改写：I need an inspiring speech to motivate my team.

$str = "Hello World!";
$newStr = str_replace("World", "PHP", $str);
echo $newStr; // 输出：Hello PHP!

In the example above, we used the str_replace function to replace “World” with “PHP” in the string.

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